WARNING: Do not attempt to access or change the setting of the fuel selection means.
The installer shall replace the access cover before completing the installation and operating this
appliance.
Change of the selector setting to other than the fuel type specified at the time of installation could
damage this appliance and render it inoperable.
Access to and adjustment of the fuel selection means must only be performed by a qualified
service person when connecting this appliance to a specified fuel supply at the time of installation.
Questions,problems? Before returning to your retailer, call our customer service department at
1-877-670-8428, 9:00 am - 6:00 pm EST, Monday through friday or email service@thermablaster.com
This appliance may be installed in an aftermarket, permanently located, manufactured (mobile) home,
where not prohibited by local codes. This appliance is only for use with propane or natural gas. This
appliance is equipped with a simple means to switch between propane and natural gas in dual fuel
models only. Field conversion by any other means including the use of a kit is not permitted.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is installed.
Provisions for adequate combustion and ventilation air must be provided. Refer to Air for
Combustion and Ventilation section on page 8 of this manual.
Warranty is void if not professionally installed.
-- Installation and service must be performed by a qualified installer, service
agency or the gas supplier.
• Do not try to light any appliance
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor’s phone. Follow the
gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
-- Do not store or use gasoline or other flammable vapors and liquid in vicinity
of this or any other appliance.
WARNING: IF THE INFORMATION IN THIS MANUAL IS NOT FOLLOWED
EXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY
DAMAGE, PERSONAL INJURY, OR LOSS OF LIFE.
CAUTION - FOR YOUR SAFETY
REECON NORTH AMERICA
2515 LIBERTY AVE.
1ST FLOOR
PITTSBURGH, PA 15222
WWW.THERMABLASTER.COM
Conforms to ANS Z21.11-2-2013. Gas-Fired Room Heater Volume II, Unvented Room Heater
24” VENT FREE
GAS LOG
MODEL: GLDF24R-VF
1
Version 1.2A November 2016
TABLE OF CONTENTS
About Us………………………….….….…1
Product Specifications……………………1
Important Safety Information…………….2
Product Features………………………….4
Installation Checklist……………………...5
Water Vapor……………………………….7
Air for Combustion…………………….….8
Determining Fresh Air Flow……………...9
Installation Considerations…………………11
Connecting to Gas Supply..........................17
Unit Operation……………………………….19
Care and Maintenance…...........................22
Troubleshooting…………...........................23
Illustrated Parts and Parts List...................26
Service Schedule, Registration
and Contact Information............................28
ABOUT US
We at Reecon strive to produce the highest quality Thermablaster heaters to warm our customers. We
feel that a heater should look as good as it operates and work without a fuss. That is why we have
developed our patent pending dual fuel heating system, which allows the use of either liquid propane or
natural gas for some of our most popular products, without requiring any adjustments. Our product lines
consist of vent free gas wall heaters, a direct vent gas wall heater line, kerosene and propane forced air
heaters, electric industrial heaters, fireplace sets, as well as outdoor heating products. Through our
innovative product design and customer first mentality, we strive to provide the best heaters for all needs,
at a price that won’t break the bank.
PRODUCT SPECIFICATIONS
Model
GLDF24R-VF
Gas type
Using natural gas
Nominal Heat Input
40,000 Btu/hr
Minimum Inlet Supply Pressure (W.C.)
6”
Maximum Inlet Supply Pressure (W.C.)
9”
Manifold Pressure (W.C.)
5.2”
Nominal Input Pressure (W.C.)
7”
Gas type
Using propane gas
Nominal Heat Input
35,000 Btu/hr
Minimum Inlet Supply Pressure (W.C.)
8”
Maximum Inlet Supply Pressure (W.C.)
14”
Manifold Pressure (W.C.)
6”
Nominal Input Pressure (W.C.)
11”
Ignition
Automatic Ignition
Package Dimension (H×W×D)
16.93”x26.57”x17.32”
Heater Dimension (HxWxD)
15.70”x24”x12”
2
IMPORTANT SAFETY INFORMATION
IMPORTANT: Read this owner’s manual
carefully and completely before trying to
assemble, operate, or service this heater.
Improper use of this heater can cause serious
injury or death from burns, fire, explosion,
electrical shock, and carbon monoxide poisoning.
Only a qualified installer, service agent, or local
gas supplier may install and service this product.
WARNING: Do not store or use gasoline
or other flammable vapors and liquids in the
vicinity of this or any other appliance.
CARBON MONOXIDE POISONING: Early signs
of carbon monoxide poisoning resemble the flu
with headache, dizziness and/or nausea. If you
have these signs, heater may not be working
properly. Get fresh air at once! Have heater
serviced. Some people - pregnant women,
persons with heart or lung disease, anemia,
those under the influence of alcohol, those at
high altitude - are more affected by carbon
monoxide than others.
Natural and Propane /LP Gas: Natural and
Propane/LP gas are odorless. An odor-producing
agent is added to the gas. The odor helps you
detect a gas leak. However, the odor added to
the gas can fade. Gas may be present even
though no odor exists.
WARNING: Any change to this heater or its
controls can be dangerous.
WARNING: Do not use any accessories
not approved for use with this heater.
WARNING: Carefully supervise young
children when they are in the room with the
heater.
WARNING: Make sure fireplace screen
must be in place when the appliance is operating
and, unless other provisions for combustion air
are provided, the screen shall have an opening(s)
of introduction of combustion air.
WARNING: Keep the appliance area clear
and free from combustible materials, gasoline,
and other flammable vapors and liquids.
WARNING: Due to high temperatures, the
appliance should be located out of traffic and
away from furniture and draperies.
WARNING: Keep children and adults away
from hot surfaces to avoid burns or clothing
ignition. Heater will remain hot for a time after
shutoff. Allow surfaces to cool before touching.
WARNING: Do not place clothing or other
flammable material on or near the appliance.
Never place any objects in the heater.
WARNING: Failure to keep the primary air
opening(s) of the burner(s) clean may result in
sooting and property damage.
WARNING: Do not allow fans to blow
directly towards the heater. Avoid any drafts that
alter burner flame patterns.
WARNING: Do not use a blower insert,
heat exchanger insert or other accessory not
approved for use with this heater.
WARNING: Failure to position the parts in
accordance with these diagrams or failure to use
only parts specifically approve with this heater
may result in property damage or personal injury.
WARNING: Before installing in a solid-fuel
burning fireplace, the chimney flue and firebox
must be cleaned of soot, creosote, ashes and
loose paint by a qualified chimney cleaner.
Solid-fuel shall not be burned in a fireplace in
which an unvented room heater is installed.
WARNING: Any glass doors shall be fully
opened when the appliance is in operation
CAUTION: Two gas line installations at the same
time are prohibited. The access plate to the
3
switching means shall not be opened while the
heater is in operation.
WARNING: This appliance is for installation
in a solid-fuel burning masonry or UL 127 factory
build fireplace or in a listed vent less firebox
enclosure. It has been design certifies for these
installations. Exceptions: DO NOT install
appliance in a factory build fireplace that includes
instructions stating it has not been tested or
should not be used with unvented gas logs.
1. This heater shall not be installed in a room or
space unless the required volume of indoor
combustion air is provided by the method
described in the National Fuel Gas Code, ANSI
Z223.1/NFPA 54, the International Fuel Gas
Code, or applicable local codes.
2. Do not place Propane/LP supply tank(s) inside
any structure. Propane/LP supply tank(s) must
be placed outdoors.
3. This heater shall not be installed in the place
which the strong wind would shut down the
appliance.
Air ducts and/or ash dumps in the fireplaces shall
be permanently closed at time of appliance
installation.
4. This heater needs fresh air ventilation to run
properly. This heater has an Oxygen Depletion
Sensing (ODS) safety shutoff system. The ODS
shuts down the heater if not enough fresh air is
available. See Air for Combustion and Ventilation,
page 8. If heater keeps shutting off, see
troubleshooting.
5. Keep all air openings in front and bottom of
heater clear and free of debris. This will ensure
enough air for proper combustion.
6. If heater shuts off, do not relight until you have
provided fresh air from outside. If heater keeps
shutting off, have it serviced.
7. Do not run heater where flammable liquids or
vapors are used or stored under dusty
conditions.
8. Before using furniture polish, wax, carpet
cleaner, or similar products, turn heater off. If
heated, the vapors from these products may
create a white powder residue within burner box
or on adjacent walls or furniture.
9. Always run heater with control knob at
PILOT/IGN, LOW or HIGH locked positions.
Never set control knob between locked positions,
otherwise poor combustion and higher levels of
carbon monoxide may be resulted.
10. Do not use this room heater if any part has
been under water. Immediately call a qualified
service technician to inspect the room heater and
to replace any part of the control system and any
gas control which has been under water.
11. Turn off and let heater cool down before
servicing. Only a qualified service person should
service and repair heater.
12. Periodic visual check of pilot and burner
flame, with pictorial sketches or drawings.
13. The appliance must be isolated from the gas
supply piping system by closing its equipment
shut-off valve during any pressure testing of the
gas supply piping system at test pressures equal
to or less than 1/2 psi (3.5 kPa).
Important Note:
• An unvented room heater having an input
rating of more than 10,000 Btu/hr (2,931
W) shall not be installed in a bedroom or
bathroom; or
• An unvented room heater having an input
rating of more than 6000 Btu/hr (1,758 W)
shall not be installed in a bathroom.
4
QUALIFIED INSTALLING AGENCY
Only a qualified agency should install and replace gas piping, gas utilization equipment or accessories,
repair and service the heater. The term “qualified agency” means any individual, firm, corporation, or
company that either in person or through a representative is engaged in and is responsible for:
a) Installing, testing, or replacing gas piping or
b) Connecting, installing, testing, repairing, or servicing equipment; that is experienced in such work;
that is familiar with all precautions required; and that has complied with all the requirement of the
authority having jurisdiction.
PRODUCT FEATURES
SAFETY PILOT
This heater has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS/pilot
shuts off the heater if there is not enough fresh air.
AUTOMATIC IGNITION SYSTEM
This heater is equipped with a PCB controlled automatic ignition system. No AC power supply required.
Battery should be periodically checked and replaced accordingly.
GAS OPTIONS CAPABLE (Dual Fuel Models Only) (Models that start with GLDF)
If you have the dual fuel model, your heater is equipped to operate on either propane or natural gas. The
heater will automatically identify your gas source without any manual changes.
THERMOSTATIC CONTROL
These heaters have a control valve with a wireless remote thermostat. This results in the greatest heater
comfort and may result in lower gas bills.
LOCAL CODES
Install and use heater with care. Follow all local codes. In the absence of local codes, use the latest
edition of The National Fuel Gas Code, ANSI Z223.1/ NFPA 54
5
INSTALLATION CHECKLIST
Share this checklist with your professional installer
Manifold Pressure and Nominal Inlet Pressure for appropriate gas type
o Using Natural Gas:
▪ Minimum Inlet Pressure (W.C): 6”
▪ Manifold Pressure (W.C.): 5.2”
▪ Nominal Input Pressure (W.C.): 7”
o Using Propane Gas:
▪ Minimum Inlet Pressure (W.C): 8”
▪ Manifold Pressure (W.C.): 6”
▪ Nominal Input Pressure (W.C.): 11”
Clearances
o 5” minimum from bottom of heater to Top Surface of Floor
o 16” Minimum from sides to of Heater
o 42” Minimum clearance from top surface of heater and up
Connected to gas supply using a 3/8th inch UNF inlet connection to a ½ inch gas pipe
Unit is placed in a room that is a minimum of 1150 square feet.
Rechargeable AA batteries placed in heater & standard AA batteries placed in remote
Adequate ventilation and fresh-air flow is appropriate for heater location
Unit successfully tested
o Installed by:
➢ Company __________________________________________
➢ Installer __________________________________________
➢ Contact Info ________________________________________
➢ Date ______________________________________________
Note to installer: Ensure that you are referencing the product manual for full details on each of the
installation steps, warnings and considerations. This list is to be used to confirm the steps as you move
through the installation. Please leave this sheet with the user.
*Do not attempt any modifications, repairs or replacements on this unit without first discussing with
Thermablaster Technical Support. Doing so will void the product’s warranty. Professional Installation is
required by all local and National codes.
Unit is not to be used as a central heating system
6
Preparing for Installation
Before beginning assembly or operation of the product, make sure all parts are present. Compare parts
with package contents list and diagram above. If any part is missing or damaged, do not attempt to
assemble, install or operate the product. Contact customer service for replacement parts.
Before installing heater, make sure you have the items listed below:
Figure 1 - Vent-Free Gas log
Power
Burner OFF
Burner ON
Battery Cover
7
UNPACKING
1. Remove heater from carton.
2. Remove all protective packaging applied to heater for shipping.
3. Check heater for any shipping damage. If heater is damaged, promptly inform dealer where you
purchased heater.
4. Remove thread protective cup on the gas inlet pipe underneath the heater.
5. The unit comes with two sets of AA batteries.
- Two AA 14500 3.7V rechargeable batteries.
- Two AA 1.5 V batteries.
Install the AA 14500 3.7V rechargeable batteries in the main burner. (Do not attempt to replace these
batteries with regular AA batteries even if they are rechargeable. The unit will not operate with conventional AA
batteries because they are batteries are 1.5V – 1.8V. The heater will only work with 3.7 V batteries)
Install the AA 1.5 V batteries in the remote control.
Be sure batteries have full capacity. Batteries must be removed if the heater is not in use for an extended
period of time and turn the switch to the OFF position.
Figure 2 – Battery Cover and Power Switch.
WATER VAPOR: A BY-PRODUCT OF UNVENTED ROOM HEATERS
Water vapor is a by-product of gas combustion. An unvented room heater produces approximately one (1)
ounce (30 ml) of water for every 1,000 BTUs (0.3 KWs) of gas input per hour. Unvented room heaters are
recommended as supplemental heat (a room) rather than a primary heat source (an entire house). In
most supplemental heat applications, the water vapor does not create a problem. In most applications,
the water vapor enhances the low humidity atmosphere experienced during cold weather. The following
steps will help ensure that water vapor does not become a problem:
1. Be sure the heater is sized properly for the application, including ample combustion air and
circulation air.
8
2. If high humidity is experienced, a dehumidifier may be used to help lower the water vapor content
of the air.
3. Do not use an unvented room heater as the primary heat source.
AIR FOR COMBUSTION AND VENTILATION
WARNING: This heater shall not be
installed in a confined space or unusually
tight construction unless provisions are provided
for adequate combustion and ventilation air.
Read the following instructions to ensure proper
fresh air for this and other fuel-burning
appliances in your home.
Providing Adequate Ventilation
This heater shall not be installed in a room or
space unless the required volume of indoor
combustion air is provided by the method
described in the NATIONAL FUEL GAS CODE,
ANSI Z223.1/NFPA 54, the INTERNATIONAL
FUEL GAS CODE, or applicable local codes.
The following are excerpts from National Fuel
Gas Code, ANSI Z223.1/ NFPA 54. Air for
Combustion and Ventilation. All spaces in homes
fall into one of the three following ventilation
classifications:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
The information on the following pages will help
you classify your space and provide adequate
ventilation.
Confined and Unconfined Space
The National Fuel Gas Code, ANSI
Z223 .1/NFPA 54 defines a confined space as a
space whose volume is less than 50 cu. ft. per
1,000 BTU/hr (4.8 m3 per kw) of the aggregate
input rating of all appliances installed in that
space and an unconfined space as a space
whose volume is not less than 50 cubic feet per
1,000 BTU/hr (4.8 m3 per kw) of the aggregate
input rating of all appliances installed in that
space. Rooms connecting directly with the space
in which the appliances are installed, through
openings not furnished with doors, are
considered a part of the unconfined space.
This heater shall not be installed in a confined
space or unusually tight construction unless
provisions are provided for adequate combustion
and ventilation air. Adjoining rooms are
connecting only if there are odorless
passageways or ventilation grills between them.
Unusually Tight Construction
The air that leaks around doors and windows
may provide enough fresh air for combustion and
ventilation. However, in buildings of unusually
tight construction, you must provide additional
fresh air. Unusually tight construction is defined
as construction where:
a) Walls and ceilings exposed to the outside
atmosphere have a continuous water vapor
retarder with a rating of one perm (6×10-11kg
per pa-sec-m2) or less with openings gasket or
sealed and
b) Weather stripping has been added on
openable windows and on doors and
c) Caulking or sealants are applied to areas such
as joints around window and door frames,
between sole plates and floors, between wall
ceiling joints, between wall panels, at
penetrations for plumbing, electrical, and gas
lines, and at other openings.
If your home meets all of the three criteria above,
you must provide additional fresh air. See
“Ventilation Air from Outdoors”. If your home
does not meet all of the three criteria above,
proceed to “Determining Fresh-Air Flow for
Heater Location”.
9
DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION
Use this worksheet to determine if you have a confined or unconfined space. Space: Includes the room in
which you will install heater plus any adjoining rooms with door less passageways or ventilation grills
between the rooms.
1. Determine the Volume of space in cubic feet
Length X Width X Height = ___________________ cu. Ft.
(Including adjoining rooms with door less passageways or ventilation grills between rooms)
Example: 24’ (L) X 16’ (W) 8’ (H) = 3,072 cu. Ft.
2. Multiply the volume of space by 20 BTU/Hr. to determine the maximum BTU/Hr. the space can
support.
Example: 3.072 cu. Ft. X 20 BTU/Hr. = 61,440 BTU/Hr.
(Maximum BTU/Hr. the room can support)
3. Add the BTU/Hr. of all the fuel burning appliances in the space
Vent Free Heater _________________BTU/Hr.
Gas Appliance #1_________________BTU/Hr.
Gas Appliance #2_________________BTU/Hr.
Example: Vent Free Heater 26,000 BTU/Hr.
Gas Appliance #1 35,000 BTU/Hr.
Total 61,000 BTU/Hr.
The space in the prior example is a confined space because the actual BTU/hr used is more than the
maximum BTU/hr the space can support.
You must provide additional fresh air. Your options are as follows:
Rework worksheet, adding the space of an adjoining room. If the extra space provides an unconfined
space:
a) Remove door to adjoining room or add ventilation grills between rooms. See “Ventilation Air
from Inside Building” on next page.
b) Vent room directly to the outdoors. See the following “Ventilation Air from Outdoors” for details.
c) Install a lower BTU/hr heater if lower BTU/hr size makes room unconfined. If the actual BTU/hr
used is less than the maximum BTU/hr the space can support, the space is an unconfined
space. You will need no additional fresh air ventilation.
WARNING: If the area in which the heater may be operated is smaller than that defined as an
unconfined space, or if the building is of unusually tight construction, provide adequate combustion
and ventilation air by one of the methods described in the National Fuel Gas Code, ANSI Z223.1/NFPA
54, Air for Combustion and Ventilation, or applicable local codes.
10
WARNING: If the area in which the heater may be operated does not meet the required volume for
indoor combustion air, combustion and ventilation air shall be provided by one of the methods described
in the National Fuel Gas Code, ANSI Z223.1/NFPA 54, the International Fuel Gas Code, or applicable
local codes.
Ventilation Air from Inside Building
This fresh air would come from an adjoining unconfined space. When ventilating to an adjoining
unconfined space, you must provide two permanent openings: one within 12 inches of the ceiling and one
within 12 inches of the floor on the wall connecting the two spaces (Figure 3). You can also remove the
door into adjoining room (see option 3, Figure 3). Follow the National Fuel Gas Code. ANSI Z223.1/NFPA
54, Air for Combustion and Ventilation for required size of ventilation grills or ducts.
Ventilation Air from Outdoors
Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent openings: one
within 12 inches of the ceiling and one within 12 inches of the floor. Connect these items directly to the
outdoors or spaces open to the outdoors. These spaces include attics and crawl spaces. Follow the
National Fuel Gas Code, ANSI Z223.1/ NFPA 54, Air for Combustion and Ventilation for required size of
ventilation grills or ducts.
IMPORTANT: Do not provide openings for inlet or outlet air into attic if attic has a
thermostat-controlled power vent. Heated air entering the attic will activate the power vent. Rework
worksheet, adding the space of the adjoining unconfined space. The combined spaces must have
enough fresh air to supply all appliances in both spaces.
Figure 3 - Ventilation Air from Inside Building
NOTE: Base not included. Not for use in bedrooms or bathrooms.
Figure 4 - Ventilation Air from Outdoors
11
INSTALLATION CONSIDERATIONS
This heater is intended for use as supplemental heat.
Use this heater along with your primary heating system. Do not install this heater as your primary heat
source. If you have a central heating system, you may run system’s circulating blower while using heater.
This will help circulate the heat throughout the house. In the event of a power outage, you can use this
heater as your primary heat source.
WARNING: A qualified service person must install heater. Follow all local codes.
WARNING: Never install the heater:
in a recreational vehicle
where curtains, furniture, clothing, or other flammable objects are less than 36 inches from the
front, top, or sides of the heater
in high traffic areas
in windy or drafty areas
CAUTION: This heater creates warm air currents. These currents move heat to wall surfaces next
to heater. Installing heater next to vinyl or cloth wall coverings or operating heater where impurities (such
as tobacco smoke, aromatic candles, cleaning fluids, oil or kerosene lamps, etc.) in the air exist, may
cause walls to discolor.
IMPORTANT: Vent-free heaters add moisture to the air. Although this is beneficial, installing
heater in rooms without enough ventilation air may cause mildew to form too much moisture. See Air for
Combustion and Ventilation.
Check Gas Type
Be sure your gas supply is right for your heater. Otherwise,
call dealer where you bought the heater from for proper type
heater.
Clearances to Combustibles
Carefully follow the instructions below. This heater is a
freestanding floor seated unit.
WARNING: Maintain the minimum clearances shown
in Figure 5. If you can, provide greater clearances
from floor, ceiling, and joining wall.
Figure 5 – Minimum Clearance to Combustibles
12
The gas log heater must be installed at least 1 3/8” above any combustible flooring material, such as
carpeting or tile, which is closer than 14” to the base of the fireplace. The minimum distance must be
maintained from the top surface of carpeting, tile, etc. See Figure 6.
OR
The gas log heater may be installed nearer to the floor if a minimum of 14” of noncombustible material
such as a slate or marble is installed between the base of the fire place and the combustible flooring. See
Figure 7.
When installing your log set as a vent free installation the damper clamp can be used to eliminate the
potential for odors when burning the logs for the first time.
Note: When the appliance is installed directly on carpeting, tile or other combustible material, other than
wood flooring, the appliance shall be installed on a metal or wood panel extending the full width and
depth of the appliance.
Installing Damper Clamp:
Remove all ashes or other debris from the
fireplace. If the fireplace is equipped with an ash
dump be sure to seal the door with furnace
cement or high temperature silicone. Be sure to
check the damper for proper operation and
verify that the flue passageway is open.
Place the clamp over the lip of the damper and
tighten the hold down bold until the clamp is
securely attached to the damper. This will
prevent the damper from accidentally closing.
Manual and millivolt controlled gas logs may be
installed as a vented decorative log set in
compliance with ANSI Z21.11.2-2013 and
Figure 6 – Minimum Clearance Above
Combustible Flooring.
Figure 7 – Minimum Clearance Above
Combustible Flooring with Noncombustible
Material Installed at Base of Fireplace.
Figure 8 - Damper
13
National Fuel Gas Code. When the gas logs are operated with the damper open, Non-Combustible
material and minimum mantel requirements do not apply.
Note: When installing your log set as a vented installation the damper clamp (Not Provided in hardware)
must be used.
Air Door
Setting the Air Door to the appropriate gas type being supplied to the log set is important, as it improves
the color and appearance of the flame. The Air Door is located on the bottom of the log set heater. So,
you will need to flip it over. I recommend laying a cloth down so that the metal of the burner does not rub
on the floor. You will want to look for an oval shaped cover that has two screws.
You will unscrew this door, revealing a silver cylinder shaped part that has a single screw. The unit comes
preset for Propane, so at first, the screw will be facing towards LP (Liquid Propane).
Loosen this screw.
Air Door
Loosen this screw
14
Then, with your screwdriver still contacting the screw, slide/rotate the cylinder towards the NG (Natural
Gas) side until it cannot slide any further.
Once done, you will tighten the screw on the cylinder, then seal the air shutter cover again.
For more information please visit our website www.thermablaster.com. You can contact us at
877-670-8428 or via email service@thermablaster.com.
Minimum Firebox Dimensions
Model
A- Front Width
B- Length
C- Rear Width
D- Height
GLDF24M-VF
28”
16”
26”
24”
15
Log Placement
Ensure that your heater’s logs are placed as shown below. It’s important that your logs do not cover
burner holes, as this can lead to sooting and an overall drop in the performance of your heater. Logs
should be placed sequentially, from lowest to highest, as the numbering indicates. There are grooves on
many of the logs that allow for simple placement and help to prevent the logs from shifting positions.
6
7
3 2 3 5 4
1
5
16
Ember Placement
Our Gas Log Sets come with two bags with stones and embers. The large bag contains a simulation of stones made of a
non-consuming foamy material, which you can place around the burner.
The smaller bag contains a material very similar to cotton. These are non-consuming glowing embers.
17
The stones can be placed as you prefer but you need to follow these clearances. You CAN NOT place anything in front
of the gas log closer than 5 Inches.
We recommend you place the stones on the front tray of the unit as shown in the picture below.
5 Inches
5 Inches
18
Now, you will place the glowing embers covering the front burner, as shown below.
The embers help create the look of smoldering wood embers. A simple solution to giving your fire a beautiful and more
natural look, when the flames from your fire hit these embers, they glow red like real wood. These are non-consuming,
so they can be lit and re-used as long as you want.
After you set everything it should look like the picture below.
Keep in mind, the stones and glowing embers are intended for decoration and are meant to be placed as the customer
sees fit as a personal touch.
19
Remote Control
Thermablaster Remote log sets come with a wireless remote control that is synchronized with the log set
at the factory. This remote has an onboard thermostat that senses the temperature at the location of the
remote. Please consider the location when mounting the remote as this will determine how much heat is
put into the room. The remote can be used adjust the target temperature, gauge current
temperature and turn the log set completely off. For best performance, we recommend that the remote
has a direct line of sight with the log set and is positioned within 10 feet. Please note for safety reasons
you cannot start the log set from the remote. Initial lighting of the logs must be done at the front of the
unit. Once lit, turn the remote control to the ON position. Do not attempt to start the unit from the
remote control otherwise the remote controls unsynchronized with the unit.
Remote Operation
o Power (Set): Function allows you to only shut off the whole system when depressed (Initial
lighting of the logs must be done at the front of the unit.)
o Clock: Will set the time on the remote control
1. Depress clock button until time is blinking.
2. Use Up (˄) and Down (˅) arrows to set time on the remote control
3. Once hours are set, press the clock button and the minutes field will appear as blinking. Use
the arrows to adjust minutes.
Note: When desired time is set, no further action is necessary
o Up (˄) and Down (˅): These buttons will allow you to set the heat to your desired temperature.
You can also turn on and off the main burner by adjusting temperature.
o Remote control distance: 10m (393.7in).
Set to ℃ or ℉:
• ℃ refers to Centigrade. ℉ refers to Fahrenheit.
• Set the remote control to OFF (the screen will show OFF).
• Press Up (˄) and Down (˅) simultaneously. When the
temperature icon flashes, press Up (˄) or Down (˅) to choose
the temperature unit. The setting will be saved and exit
automatically after a short time, or you can exit immediately
by pressing Clock.
• Default setting: ℉
Power (set) Clock Temp. Up(^) Temp. Down(˅)
20
Remote Synchronization
Your remote is synchronized at the factory. This step should not be necessary upon purchase;
However, your installer should verify remote operation and synchronization during installation. If
for whatever reason your remote control is not synchronized. Visit our YouTube channel to watch our
instructional videos. We have a video that will guide you step by step with the instruction of how to
synchronize your remote control with your unit. Go to YouTube and just type in the search bar
“Vent-Free Gas Log Remote Synchronization”. You can also find it on our website. Go to
www.thermablaster.com. Click on Gas Logs ˃ Vent-Free Gas Logs > 24” Vent-Free Gas Log >
Remote Control. If further help is needed, please call our customer service first for help
at 1-877-670-8428
1. To synchronize the remote control and the gas log heater, keep the remote control
on OFF setting (the screen will show OFF). Simultaneously depress Clock and Down (˅) until the
remote control shows “Cd” on the screen.
2. On the unit’s front control panel, press down the Power Button to turn the unit ON, wait 10
seconds, then press down the Power Button again to power OFF. The screen will show OFF.
Quickly depress and hold the Burner ON and OFF buttons simultaneously until the screen
shows “Cd”
3. Press Clock on the remote control. The main burner will show “Ed” and then goes blank.
4. Let go the Clock button and now press Clock and Down (˅) on the remote control until you see the
temperature again on the remote, then let go, the screen should go blank.
5. Go to the main burner and press the Power button to turn it ON. Wait until it stops sparking. Then
press the power button on the remote to turn it to the ON position.
6. After you have the remote control and the main burner ON. Press and hold the power button on the
remote control until the main burner goes completely OFF. (The main burner didn’t go completely
off, start from step one again)
7. Go to the main burner and press the Power button to turn it back ON. Wait until it stops sparking and
the unit is ON. Then press the power button on the remote to turn it to the ON position.
8. You should be able to turn the main burner ON and OFF by adjusting the temperature using the
Up (^) or Down (˅) buttons on your remote control.
9. Now the remote control and gas log control are successfully synchronized.
21
UNIT OPERATION
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
1. When lighting the pilot, follow these instructions exactly.
2. BEFORE LIGHTING, smell all around the appliance area for gas. Be sure to smell next to the floor
because some gas is heavier than air and will settle on the floor.
3. Use only your hand to push in or turn the gas control knob. Never use tools. If the knob will not push in
or turn by hand, don’t try to repair it, call a qualified service technician or gas supplier. Forced or
attempted repair may result in a fire or explosion.
4. Do not use this appliance if any part has been under water. Immediately call a qualified service
technician to inspect the appliance and to replace any part of the control system and any gas control
which has been under water.
WHAT TO DO IF YOU SMELL GAS
Open the window or door immediately.
Do not try to light any appliance.
Do not touch any electric switch, do not use any phone in your building.
Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
If you cannot reach your gas supplier, call the fire department.
LIGHTING INSTRUCTIONS
Before Lighting:
1. Make sure the heater is properly installed and connected. Open the external safety shut off valve (not
part of the heater) on gas inlet line to the heater.
2. Wait five (5) minutes to clear out air inside gas lines. Smell if there is any leakage.
IMPORTANT: If you smell any gas, do not try to light any appliances, do not touch electrical
switches or use any phone in the building. Shut off the valve on gas inlet line immediately and
contact gas supplier from a neighbor’s phone. Follow gas supplier’s instructions. If you can’t
reach the gas supplier, call the fire department. Only when you make sure there is no gas leakage,
go to the next step.
Note: During first seasonal use, gas smell is expected to be more noticeable than in standard operation.
Ignition Process:
1. Ensure that the two AA 14500 3.7V rechargeable batteries have been placed in the heater
Note: Do not replace the AA 14500 3.7V rechargeable batteries in the heater. Regular AA batteries are
1.6 volts and will not work. (If you need replacement batteries you can find them with the following
description model AA14500 3.7V 2000 mah rechargeable batteries on the web.)
22
2. Ensure that the normal AA size batteries (1.5V) have been placed in the remote control.
Note: Be sure to never insert the normal AA size batteries in the heater or the rechargeable
batteries in the remote.
3. At the battery slot on the heater, you will find an ON and OFF switch. Set it to ON.
4. Push down and release the Power button. At this point, the igniter should start clicking. It will make
two rounds of clicking. The pilot and the burner will come ON within 5-10 seconds.
5. If the pilot and burner do not come on within 15 seconds, the unit will automatically try to relight a
second time after 30 seconds.
Note: If the heater does not come ON after two attempts, hold in on the “Power” button for 5 seconds
for complete shutdown and repeat step 3 again.
6. After the heater’s burners have activated, you can set the remote control to your desired
temperature using the Up (˄) and Down (˅) arrows.
Shutdown Process:
To stop the heater, shut off the valve on the gas inlet line. Next, press the power button on the remote to
turn off the unit. If the unit will not be used again in a short period, switch the battery switch to the OFF
position, or remove the batteries when not using the unit for extended periods of time.
Note: Adjustable temperature settings determine the length of time that the heater will operate at
maximum BTU to achieve desired temperature, not the actual flame height.
23
Thermoelectric Generating System
We are proud to say that our unit is equipped with a unique thermoelectric generating system. This allows
the heater to generate power from the flames of it to charge the batteries as is running. Our system uses
two 3.7 Volts rechargeable batteries to power the unit and this will be charge by the thermoelectric
generator.
Furthermore, you will notice an Micro USB input port on the front of the unit for.
In case the log set batteries run out of power, you can connect a Micro USB cable to the Micro USB port
and plug in to a wall socket, this will allow the batteries to be charged. The batteries will run out of power
only if the heater is not used for a long period of time. (Micro USB cable is not included)
INSPECTING BURNER
Check pilot flame pattern and burner flame pattern often.
PILOT FLAME PATTERN
Two pilot burners with ODS function for NAT and LP gas respectively are installed on burners two sides
separately as shown in Figure. 11. The normal ODS pilot flame should have a correct pattern as shown in
Figure. 12 in normal operation with exception during ignition stage.
24
Figure 11 – Pilot System
Figure 12 – Pilot Blue Flame
25
CARE AND MAINTENANCE
WARNING: Turn off heater and let cool before servicing
CAUTION: You must keep control areas, burner, and circulating air passageways of the heater
clean. Inspect these areas of heater before each use. Have heater inspected yearly by a qualified
service technician. Heater may need more frequent cleaning due to excessive lint from carpeting,
bedding material, pet hair, etc.
Installation and repair should be done by a qualified service person. The appliance should be inspected
before use and at least annually by a professional service person. More frequent cleaning be may require
due to excessive lint from carpeting, bedding material, pet hair, etc.
ODS/PILOT AND BURNER
Use a vacuum cleaner, pressurized air, or a small, soft bristled brush to clean.
CLEANING BURNER PILOT AIR INLET HOLE
We recommend that you clean the unit every 2,500 hours of operation or every three months. We also
recommend that you keep the burner tube and pilot assembly clean and free of dust and dirt. To clean
these parts, we recommend using compressed air no greater than 30 PSl. Your local computer store,
hardware store, or home center may carry compressed air in a can. You can use a vacuum cleaner in the
blow position. If using compressed air in a can, please follow the directions on the can. If you don’t follow
directions on the can, you could damage the pilot assembly.
1. Shut off the unit, including the pilot. Allow the unit to cool for at least thirty minutes.
2. Inspect burner and pilot for dust and dirt.
3. Blow air through the ports/slots and holes in the burner. Also clean the pilot assembly. A yellow tip on
the pilot flame indicates dust and dirt in the pilot assembly. There is a small pilot air inlet hole about two
inches from where the pilot flame comes out of the pilot assembly (see Figure 11). With the unit off, lightly
blow air through the air inlet hole. You may blow through a drinking straw if compressed air is not
available.
CABINET
Air Passageways
Use a vacuum cleaner or pressurized air to clean.
Exterior
Use a soft cloth dampened with a mild soap and water mixture.
Wipe the cabinet to remove dust
1) Use a soft cloth dampened with a mild soap and water mixture.
2) Wipe the cabinet to remove dust.
26
TROUBLESHOOTING
WARNING:
If you smell gas:
• Open the window and door immediately.
• Shut off gas supply.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
IMPORTANT: Operating heater where impurities in air exist may create odors. Cleaning supplies,
paint, paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc., create
fumes. These fumes may mix with combustion air and create odors.
WARNING: Only a qualified service technician should service and repair heater.
CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/
pilot unit. Note: All troubleshooting items are listed in order of operation.
Remote Error Codes
Error Codes
Description
E1: Ignition failure
Will appear once the ignition has failed a minimum of twice in a row.
• No or low gas flow to the heater
E2: Unintentional flame
shutdown
Can occur due to a lack of oxygen, low gas pressure, gas flow blockage, or a
rush of air.
• Review minimum clearances in the Installation Considerations section
E3: Overheating
Can take place when air flow is limited, such as sooting, fan failure, improper
installation or restricted spacing in placement.
• Review minimum clearances in the Installation Considerations section
E4: Fan failure
Power generating cooling fan is malfunctioning, due to power or operation
issues.
• Review minimum clearances in the Installation Considerations section
• Use compressed air to remove dust and sooting
E5: Lack of electricity
This can affect the unit if the batteries are installed incorrectly, have improper
voltage (less than 3.5V), or if the power plug is in use and not functioning
correctly.
• Check battery placement and ensure that they are charged
• Use the Micro USB Port to ignite the heater using a Micro USB cable.
27
PROBLEM
POSSIBLE CAUSE
CORRECTIVE ACTION
➢ When igniting, there is
no spark at ODS/pilot.
• Igniter electrode is
positioned wrongly.
• Cables between switch,
battery pack, igniter and
igniter electrode may be
loose, pinched, wet or
broken.
• Bad igniter
• No battery or battery used
out.
• Reposition igniter electrode.
• Secure or replace cables
between switch, battery pack,
igniter and igniter electrode.
• Replace igniter.
• Install or replace battery.
➢ When igniting, there is a
spark at ODS/pilot but
no ignition.
• Gas supply is turned off or
equipment shutoff valve is
closed.
• Control knob not fully
pressed in while pressing
igniter button.
• Air in gas lines when
installed.
• ODS/pilot is clogged.
• Control knob not in PILOT
position.
• External shut off valve on
gas supply opened too fast
and blocked appliance
regulator in heater.
• Turn on gas supply or open
equipment shutoff valve.
• Fully press in control knob while
pressing igniter button.
• Continue holding down control
knob. Repeat igniting operation
until air is removed.
• Clean ODS/pilot or replace
ODS/pilot assembly.
• Turn control knob to PILOT
position.
• Close external shut off valve and
re-open slowly.
➢ ODS/pilot lights but
flame goes out when
control knob is released.
• Both control and igniter
knobs are not fully pushed
down.
• Thermocouples are not
heated enough.
• External shutoff valve of gas
supply is not fully opened.
• Thermocouple connections
are loose or damaged.
• Control valve damaged.
• Press in both the igniter and pilot
knobs fully. While holding igniter
down, set control knob to number
5. Run heater for 15 minutes.
• After ODS/pilot lights, keep both
knobs depressed for at least 15
seconds.
• Fully open equipment shutoff
valve.
• Secure or replace thermocouple
connections.
• Contact customer service.
➢ Burner(s) does not light
after ODS/pilot is lit
stably
• Burner orifice is clogged.
• Burner orifice diameter is too
small.
• Inlet gas pressure is too low.
• Clean burner orifice or replace
burner orifice.
• Contact customer service.
• Contact local gas supplier.
➢ Delayed ignition of
burner(s).
• Manifold pressure is too low.
• Burner orifice is clogged.
• Contact local gas supplier.
• Clean or replace burner orifice.
➢ Burner backfiring during
combustion.
• Burner orifice is clogged.
• Burner is damaged.
• Gas regulator or/and
appliance regulator are
defective.
• Clean burner using compressed
air or replace burner orifice.
• Contact customer service.
• Contact customer service.
➢ Slight smoke or odor
during initial operation.
• Residues from
manufacturing processes.
• Problem will dissipate after a few
hours of operation in high setting.
Ensure appropriate ventilation
during this time.
➢ Heater produces a
whistling noise when
burner is lit.
• Turning control knob to Hi
position when burner is cold.
• Air in gas line.
• Air passageways on heater
• Turn control knob to LO position
and let warm up for a minute.
• Operate burner until air is
removed from line. Have gas line
checked by local gas supplier.
• Observe minimum installation
28
are blocked.
• Dirty or partially clogged
burner orifice.
clearances
• Clean or replace burner.
➢ Heater produces a
clicking/ ticking noise
just after burner is lit or
shut off.
• Metal is expanding while
heating or contracting while
cooling.
• This is common with most
heaters. If noise is excessive,
contact qualified service
technician.
➢ White powder residue
forming within burner
box or on adjacent walls
or furniture.
• When heated, the vapors
from furniture polish, wax,
carpet cleaners, etc., turn
into white powder residue.
• Turn heater off when using
furniture polish, wax, carpet
cleaner, or similar products.
➢ Heater produces
unwanted odors.
• Heater is burning vapors
from paint, hair spray, glues,
etc. See IMPORTANT
statement.
• Gas leak. See Warning
Statement
• Low fuel supply.
• Ventilate room. Stop using odor
causing products while heater is
running.
• Locate and correct all leaks.
• Refill supply tank (Propane / LP
models).
➢ Heater shuts off in use
(ODS operates).
• Not enough fresh air is
available.
• Low line pressure.
• ODS/pilot is partially
clogged.
• Open window and/or door for
ventilation.
• Contact local gas supplier.
• Clean ODS/pilot
➢ Gas odor during
combustion
• Gas leak. See Warning
Statement
• Control valve is defective.
• Foreign matters in heater
• Locate and correct all leaks.
• Contact customer service.
• Remove foreign matters
➢ Unexpected
moisture/condensation
noticed on windows.
• Ambient moisture is too high,
• Not enough ventilation
• Use a dehumidifier,
• Refer to “Air for Combustion and
Ventilation Requirements”
➢ Heater is not receiving
power
• The batteries could be loose
or misplaced
• The batteries have lost their
charge
• Ensure that the batteries are
placed properly
• Plug in the heater using the USB
2.0 Micro port to a wall outlet,
then run the heater as normal.
The heater will charge the
rechargeable AA batteries that
were included with purchase
29
ILLUSTRATED PARTS (Model: GLDF24R-VF)
30
PARTS LIST (Model: GLDF24R-VF)
Code
Description
Code
Description
1
Battery pack
14
Burner
2
Insulating board
15
Heat insulation frame
3
Thermoelectric generating assembly
16
Gas distribution assembly
4
Nozzle seat
17
Pressure test joint
5
Grate
18
Pressure test point cap
6
Air door
19
LED
7
Air door cover
20
PCB
8
Air door shield
21
T-joint No. 2
9
Frame assembly
22
Appliance regulator No. 1
10
Bottom strengthen strip No. 1
23
Appliance regulator No. 2
11
Bottom strengthen strip No. 2
24
LPG Nozzle
12
Appliance regulator valve
25
NG Nozzle
13
Chamber spacer
26
Spacer
Parts Not Sold Separately
31
Questions about installation and initial operation should be directed to your installer. For
all other concerns and questions, please reach out to our customer service team at
1-877-670-8428, by email at service@thermablaster.com, or visit www.thermablaster.com
Annual Service Schedule
Service Performed
Service Date
Please register your product online at www.thermablaster.com, or send in the registration
form below to our office at:
Reecon North America
2515 Liberty Ave
1st Floor
Pittsburgh, PA 15222
-------------------------------------------------------------------------------------------------------Contact Information Product Information
Name:
Model:
Phone:
Serial Number:
Email:
Date of Purchase:
Address:
Retailer Purchased from:
City:
Installer Company:
State:
Installer Phone:
Zip Code:
Installer Zip Code:
**All information above is required in order for our company to honor the warranty**
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