Heatstar HSVFRD10NG, HSVFBF10NG User Manual

Model #

OPERATING INSTRUCTIONS

AND OWNER’S MANUAL

HSVFRD10NG

HSVFBF10NG

READ INSTRUCTIONS CAREFULLY: Read and follow all instructions. Place instructions in a safe
place for future reference. Do not allow anyone who has not read these instructions to assemble,
light, adjust or operate the heater.

INSTALLER: Leave this manual with the appliance. CONSUMER: Retain this manual for future reference.

UNVENTED NG-GAS FIRED ROOM HEATER

Plaque Heaters

HSVFRD10NG

WARNING: If the information in this manual is not followed exactly, a re or explosion may result causing

property damage, personal injury, or loss of life.

- Do not store or use gasoline or other ammable vapors and liquids in the vicinity of this or any other appliance.

- WHAT TO DO IF YOU SMELL GAS

• Shut o󰀨 gas supply

• Do not try to light any appliance

• Do not touch an 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 re department.

- Installation and service must be performed by a qualied installer, service agency, or the gas supplier.

WARNING: This is an unvented gas-red 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 Fresh Air for Combustion and
Ventilation section on page 4 of this manual.

WARNING: Improper installation, adjustment, alteration, service or maintenance can cause injury or property
damage. Refer to this manual for correct installation and operational procedures. For assistance or additional
information consult a qualied installer, service agency, or gas supplier.

Blue Flame Heaters

HSVFBF10NG

This appliance may be installed in an aftermarket permanently manufactured (mobile) home, where not prohibited
by local codes. This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not
convertible for use with any other gas.

Enerco Technical Products, Inc., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 · 866-447-2194 2017- CB

Unvented Natural Gas Fired Room Heater

Installation Instructions and Owner’s Manual

1

WARNINGS

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, re, explosion,
electrical shock, and carbon monoxide poisoning.

WARNING: This appliance is equipped for natural
gas. Field conversion is not permitted.

WARNING: Do not use any accessory not

approved for use with this heater.

WARNING: Any change to this heater or its
controls can be dangerous.

• Do not place clothing or other ammable ma­terial on or near the appliance.

• Due to high temperatures, heater should be
kept out of tra󰀩c and away from furniture and
draperies.

• Surface of heater becomes very hot when
running. Keep children and adults away
from hot surfaces to avoid burns or clothing
ignition. Heater will remain hot for a time
after shutdown. Allow heater surfaces to cool
before handling.

• Young children should be carefully supervised
when they are in the same room with heater.

• Make sure grille guard is in place before
running heater. If screen or grille guard is
removed for servicing it must be replaced prior
to operating the heater.

• Keep the appliance area clear and free from
combustible materials, gasoline, and other
ammable vapors and liquids.

• Children and adults should be alerted to the
hazard of high surface temperature and should
stay away to avoid burns or clothing ignition.

• Any safety screen or guard removed for
servicing an appliance must be replaced prior
to operating the heater

CONTENTS

WARNINGS ........................................................................ 2

SPECIFICATIONS ................................................................. 3

PRECAUTIONS ....................................................................3

DETERMINING THE TYPE OF HEATER LOCATION SPACE .....4

INSTALLATION ...................................................................5

FASTENING HEATER TO WALL ............................................ 6

FLOOR MOUNTING AWAY FROM WALL .............................8

CONNECTING TO GAS SUPPLY ........................................... 8

OPERATING YOUR HEATER ............................................... 10

CLEANING AND MAINTENANCE .......................................11

TROUBLESHOOTING ........................................................ 13

EXPLODED-VIEW PARTS DRAWING ................................... 14

PARTS LIST ....................................................................... 15

WARRANTY .................................................................... 16

SOCIAL MEDIA

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more ways to get in touch with us:

WEBSITE: Enerco Technical Products’s full line of product are now at:

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YouTube: There are now informational videos on YouTube.

Unvented Natural Gas Fired Room Heater

Installation Instructions and Owner’s Manual

2

SPECIFICATIONS

MODEL HSVFRD10NG HSVFBF10NG

BTU (Available) 4,500(Low)-10,000(High) 4,500(Low)-10,000(High)

Type of Gas Natural Gas Only Natural Gas Only

Ignition Piezo Piezo

Pressure Regulator Setting 4.5 Inches of Water 4.5 Inches of Water

Inlet Gas Pressure (Maximum) 14 Inches of Water 14 Inches of Water

Inlet Gas Pressure (Minimum) 7 Inches of Water 7 Inches of Water

Thermostatic Control No No

Clearances: inches (mm)

Top 36” (915cm) 36” (915cm)

Sides 10” (254cm) 10” (254cm)

Floor (min. to top of carpet) 3” (76cm) 3” (76cm)

Fabric / ammable objects 36” (915cm) 36” (915cm) 36” (915cm)

**Operating heater above elevations of 4,500 feet could cause the pilot/ODS to shutdown heater.**

PRECAUTIONS:

1. 10,000 BTU may be installed in a bedroom, but
not a bathroom, or any place where a strong wind
would shut down the appliance.

2. This heater needs outside ventilation air to run
properly. The Oxygen Depletion Sensor (ODS)
safety shuto󰀨 system shuts down the heater if not
enough fresh air is available. See Fresh Air for
Combustion and Ventilation, page 4.

WARNING: An unvented heater having an input

of more than 10,000 Btu/hr (2 931W) shall not be
installed in a bedroom or bathroom.

3. Keep all air openings in heater clear, free of debris

or any blockage. This will insure that enough air for
proper combustion enters the heater.

4. If heater shuts o󰀨, do not relight until you provide
fresh, outside air. If heater keeps shutting o󰀨, it
requires servicing.

5. Turn o󰀨 and let cool before servicing. Only a qualied
service person should service and repair heater.

6. Do not run heater:

• Where ammable liquids or vapors are used or stored

• During dusty conditions.

7. Before using furniture polish, wax, carpet cleaner or
similar products, turn heater o󰀨. If heated the vapors from
these products may create a white powder residue
within burner box or on adjacent walls or furniture.

8. Do not use heater if any part has been underwater.
Immediately call a qualied service technician to
inspect the room heater and to replace any part of
the control system and any gas control which has
been underwater.

9. Operating heater above elevations of 4,500 feet
could cause the pilot/ODS to shutdown heater.

10. Always run heater with control knob in a locked
position. Never set control knob between locked
positions. Poor combustion and higher levels of
carbon monoxide may result if control knob is left
between locked positions.

Unvented Natural Gas Fired Room Heater

DANGER: Carbon monoxide poisoning may lead to
death.

Carbon Monoxide Poisoning:

Early signs of carbon monoxide poisoning resemble
the u, with headaches, dizziness, or nausea. If you
have these signs, the heater may not be working
properly. Get fresh air at once! Have heater serviced.
Some people are more a󰀨ected by carbon monoxide
than others. These include pregnant women, persons
with heart or lung disease or anemia, those under the
inuence of alcohol, and those at high altitudes.

Natural Gas:

Raw natural gas is odorless. An odor making agent is
added to natural gas, which helps you detect a natural
gas leak. However the odor added to natural gas can
fade. So natural gas may be present even though no
odor is detected. Make certain you read and understand
all warnings. Keep this manual for reference. It is your
guide to safe and proper operation of this heater.

Product Features

Burners

Grill

Front Panel

Figure 1

Installation Instructions and Owner’s Manual

3

Control Knob

Heater
Cabinet

SAFETY DEVICE

This heater has a pilot with an Oxygen Depletion
Sensor (ODS) safety shut o󰀨 system. The ODS/pilot
shuts o󰀨 the heater if there is not enough fresh air.

IGNITION SYSTEM

PIEZO: BF10NG/ RD10NG – The heater is equipped

with a piezo manual ignitor. This system requires no
matches, batteries, or other source to light heater.

LOCAL CODES

Install and use heater with care.

Installation must conform to local codes or in the

absences of local codes, use the latest edition of
National Fuel Gas Code ANSI Z223.1/NFPA 54.

UNPACKING

1. Remove heater from carton.

2. Remove all protective packaging applied to
heater for shipment.

3. Check heater for any shipping damage. If
heater is damaged, promptly inform dealer
where you bought heater.

FRESH AIR FOR COMBUSTION AND
VENTILATION

WARNING: This heater shall not be installed in

a conned space or unusually tight construction
unless provisions are provided for adequate
combustion and ventilation air. Read the following
instructions to insure proper fresh air for this and
other fuel-burning appliances in your home.

ESTABLISHING ADEQUATE VENTILATION

The following are excerpts from National Fuel Gas
Code, NFPA 54/ ANSI Z223.1, Section 5.3, Air for
Combustion and Ventilation. All spaces in homes fall

into one of the three following ventilation classications:

1. Unusually Tight Construction

2. Unconned Space

3. Conned Space

This heater must not be installed in a conned space
or unusually tight construction unless provisions are
provided for adequate combustion and ventilation air.
The information on pages 4 and 5 will help you classify
your space and provide adequate ventilation.

Unusually Tight Construction

If your home meets all of the three following criteria you
must provide additional fresh air. See Ventilation Air
from Outdoors, page 5.

Unusually tight construction is dened 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 x 10
or less with openings gasketed or sealed and

-11

kg per pa-sec-m2)

b. Whether stripping has been added on openable

windows and doors, and

c. Caulking or sealants are applied to areas such

as joints around windows and door frames,
between wall-ceiling joints, between wall panels, at
penetrations for plumbing, electrical, and gas lines,
and at other openings.

If you home does not meet all of the three criteria

above, see Determing the Type of Heater Location
Space, below.

Conned Space and Unconned Space

The National Fuel Gas Code, NFPA 54/ ANSI Z223.1

denes a conned space as a space whose volume is
less than 50 cubic feet per 1,000 Btu per hour (4.8 m3
per kW) of the aggregate input rating of all appliances
installed in that space, and an unconned space as a
space whose volume is not less than 50 cubic feet per
1,000 Btu per hour (4.8 m3 per kW) of the aggregate
input rating of all appliances installed in that space.
Rooms communicating directly with the space in which
the appliances are installed*, through openings not
furnished with doors, are considered a part of the
unconned space.

*Adjoining rooms are communication only if there
are door less passageways or ventilation grills
between them.

DETERMINING THE TYPE OF HEATER
LOCATION SPACE:

Use this method to determine if you have a conned or
unconned space.

Note: the space includes the room in which
you install heater plus any adjoining rooms with
doorless passageways or ventilation grills between
the rooms.

1. Find the volume of the space by multiplying room
length x width x height.

Example: Space size 18ft (length) x 18ft. (width) x 8ft.
(height) = 2592

If additional ventilation to adjoining room is supplied
with grills or openings, add the volume of these rooms
to the total volume of the space.

2. Divide the space volume by 50 cubic feet to
determine the maximum Btu/hr the space can
support.

Example: 2592 cu.ft. (volume of space) / 50 cu.ft. =

51.8 or 51,800 (maximum Btu/hr the space

can support)

WARNING: 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.

3. Add the Btu/hr of all the fuel-burning appliances

in the space such as, Vent–free heater, Gas water

Unvented Natural Gas Fired Room Heater

Installation Instructions and Owner’s Manual

4

heater, Gas furnace, Vented gas heater, Gas
replace logs, and Other gas appliances*

*Do not include direct-vent gas appliances. Direct­vent draws combustion air from the outdoors and
vents to the outdoors.

Example:

Gas water heater 40,000 Btu/hr

Vent Free Heater + 20,000 Btu/hr

Total =60,000 Btu/hr

4. Compare the maximum Btu/hr the space can support
with the actual amount of Btu/hr used.

Example: 51,800 Btu/hr (maximum Btu/hr the
space can support)

60,000 Btu/hr (Actual amount of Btu/hr used)

The space in the above example is a conned
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:

A. Rework worksheet, and the space of an adjoining

room. If the extra space provides an unconned
space, remove door to adjoining room or add
ventilation grills between the rooms. See Ventilation
Air From Inside Building (Fig. 2)

B. Vent room directly to the outdoors. See Ventilation

Air From Outdoors (Fig. 3).

C. Install a lower Btu/hr heater if lower Btu/hr size

makes room unconned.

If actual Btu/hr used is less than the maximum

Btu/hr the space can support, the space is an
unconned space. You will need no additional fresh
air ventilation.

VENTILATION AIR

Ventilation from Inside Building

This fresh air would come from an adjoining unconned
space. When ventilation to an adjoining unconned
space, you must provide two permanent openings: one
within 12” of the ceiling and one within 12” of the oor
on the wall connecting the two spaces (see options
1 & 2 of gure 2). You can also remove door into
adjoining room (see option3, g 2). Follow the National
Fuel Gas Code NFPA 54/ ANSI Z223.1, Section 5.3,
Air for Combustion and Ventilation for required size of
ventilation grills or ducts.

WARNING: Rework worksheet, adding the space

of the adjoining unconned space. The combined
space must have enough fresh air to supply all ap-

pliance in both spaces.

Ventilation from Outdoors

If necessary provide extra fresh air by using ventila­tion grills or ducts. Connect these items directly to the
outdoors or spaces open to the outdoors. These include
attics* and crawl spaces. Follow the National Fuel Gas

12”

Ventilation
Gills into
Adjoining
Room - Op­tion 1

Or remove
door into
Adjoining
Room ­Option 3

Ventilation Gills into Ad­joining Room - Option 2

12”

Figure 2

VENTILATION AIR

OUTLET AIR

OUTLET
AIR

INLET
AIR

VENTILATION CRAWL SPACE

VENTILATED
ATTIC

TO ATTIC

TO CRAWL
SPACE

Figure 3.

Code NFPA 54/ ANSI Z223.1, Section 5.3, Air for Com­bustion and Ventilation for required size of ventilation
grills or ducts.

*IMPORTANT: Do not provide openings for inlet or
outlet into attic. If attic has a thermostat-controlled
power vent, heated air entering the attic will activate
the power vent.

IMPORTANT: Vent-free heaters add moisture to

the air. Although this is benecial, installing heater
in rooms without enough ventilation air may cause
mildew to form from too much moisture. See Fresh
Air for Combustion and Ventilation, pages 4
through 6.

INSTALLATION

WARNING: Any change to this heater or its

controls can be dangerous.

NOTICE: This appliance is intended for supplemental
heating. 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 for the duration of the outage.

Unvented Natural Gas Fired Room Heater

Installation Instructions and Owner’s Manual

5

WARNING: A qualied service person must install

heater. Follow all local codes.

CHECK GAS TYPE

Use only natural gas. If your gas supply is not natural
gas, do not install heater. Call dealer where you bought

heater for proper type heater.

THIS INSTALLATION REQUIRES:

Before installing heater, make sure you have the items
listed below:

• Piping (check local codes)

• Sealant (resistant to natural gas)

• Equipment shuto󰀨 valve*

• Ground joint union

• Test gauge connection*

• Sediment trap

• Tee joint

• Pipe wrench

*A CSA/AGA certied equipment shuto󰀨 valve with 1/8”
NPT tap is an acceptable alternative to test gauge con­nection. Purchase a CSA/AGA certied equipment shuto󰀨
valve from your dealer.

LOCATING HEATER

This heater is designed to be mounted on the wall. The
heater can also be located on a non-combustible oor,
away from a wall by using the oor mounting stands
included with the heater. If installed on combustible ooring
such as carpeting, tile or other combustible material other
than wood ooring, the heater must be placed on a wood
panel the full width and depth of the appliance.

For convenience and e󰀩ciency, install the heater:

• Where there is easy access for operation,

inspection, and service.

• In the coldest part of the room.

CAUTION: If you install the heater in a home garage:

• Heater pilot and burner must be at least 18

inches above oor .

• Locate heater where moving vehicle will not hit it.

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 covering or operat­ing heater where impurities (such as tobacco smoke,
aromatic candles, cleaning uids, oil or kerosene lamps,
etc.) are present in the air may discolor walls.

WARNING: Never install the heater:

• In a recreational vehicle .

• Where curtains, furniture, clothing, or other

ammable objects are less than 36 inches from
the front, top, or sides of the heater.

• As a replace insert

• In high-tra󰀩c areas

• In windy or drafty areas

WARNING: Heater must be mounted to maintain
the minimum clearances shown in Figure 4. If
possible, provide greater clearances from the oor,
ceiling, and joining walls.

FASTENING HEATER TO WALL

Mounting Bracket

The mounting bracket in located on the back panel of
heater (see gure 5). It has been taped there for ship­ping. Remove mounting bracket from back panel.

10”(254cm)

from sides

Left
Side

Floor

3” min. to top surface of carpet, tile
or other combustible material

Right

Side

Figure 4

Unvented Natural Gas Fired Room Heater

36”(915cm)
min. from ceiling

Mounting
Bracket

Figure 5

Removing Front Panel of Heater

1. Remove (4) screws total there are (2) screws
on either side of the heater. (Figure 6)

2. Pull the front panel and back panel apart.

Attaching Mounting Bracket to Wall

Use holes on each end of mounting bracket to attach
bracket to wall. These holes are 16 inches apart. Attach
mounting bracket to wall in one of two following ways.

1. Attach to wall studs

2. Attach to wall anchor

Installation Instructions and Owner’s Manual

6

(2) Screws

(2) Screws

Figure 6

Attaching to Wall Stud:

This way is the best providing the strongest mounting in
wood frame houses.

Attaching to Wall Anchor:

This way allows you to attach mounting bracket to hol­low walls (wall areas between studs) or to solid walls
(concrete or masonry).

Decide which way best suits your needs. Either method
will provide a secure hold for the mounting bracket.

1. Tape mounting bracket to wall where heater
will be located. Make sure mounting bracket is
level. For wall stud mounting locate one end of
the mounting bracket over a wall stud.

WARNING: Maintain minimum clearances

shown in gure 7. If you can, provide greater
clearances from the oor and joining wall.

2. Mark screw locations on wall (see gure 7).

3. Remove tape and mount bracket from wall.

See clearance
specs on Pg 3

Attaching to Wall using Anchor:

For attaching mounting bracket to hollow walls (wall
areas between studs) or solid walls (concrete or
masonry)

Note: Wall anchors, mounting screws, and spacer
are in hardware package. The hardware package is
provided with heater.

1. Drill holes at marked locations using 5/16” drill
bit. For solid walls (concrete or masonry), drill
at least 1” deep.

2. Fold wall anchor as shown in gure 8 below.

Figure 8.

3. Insert wall anchor (wings rst) into hole. Tap
anchor ush to wall.

4. For thin walls (1/2” or less) insert red key into
wall anchor.

5. Place mounting bracket onto wall. Line up
holes on each end of bracket with wall anchors.

6. Insert mounting screws through bracket and
into wall anchors.

7. Tighten screws until mounting bracket is rmly
fastened to wall.

Placing Heater on Mounting Bracket

1. Locate two horizontal slots on back pane of
heater (see gure 9).

2. Place heater onto mounting bracket. Slide hori­zontal slots onto stand-out tabs on mounting
bracket.

16” (Lg)
12-9/64” (Sm)

Adjoining Wall

Mark mounting hole locations
and drill holes where indicated.
Allow for minimum clearances

Figure 7

Attaching to Wall Stud:

For attaching mounting bracket to wall studs

1. Drill holes at marked locations using 9/64” drill
bit.

2. Place mounting bracket onto wall. Line up
holes on each end of bracket with hole drilled in
wall.

3. Insert mounting screws through bracket and
into wall studs.

4. Tighten screws until mounting bracket is rmly
fastened to wall studs.

Unvented Natural Gas Fired Room Heater

18” Min.

Figure 9

Installing Bottom Mounting Screws

1. Locate two bottom mounting holes. These
holes are near bottom on back panel of heater
(see gure 10).

Installation Instructions and Owner’s Manual

7

Horizontal Slots

Mounting Bracket
mounted to wall

Screw
hole

Figure 10

2. Mark screws locations on wall.

3. Remove heater from mounting bracket.

4. If installing bottom mounting screw into hollow
or solid wall, install wall anchors. Follow steps 1
through 4 under Attaching to Wall using Anchor.
If installing bottom mounting screw into wall
stud, drill holes at marked locations using 9/64”
drill bit.

5. Re-place heater onto mounting bracket.

6. Place spacers between bottom mounting holes
and wall anchor or drilled hole.

7. Hold spacer in place with one hand. With the
other hand, insert mounting screw through
bottom mounting hole and spacer. Place tip of
screw in opening of wall anchor or drilled hole.

8. Tighten both screws until heater is rmly
secured to wall. Do not over tighten.

Note: Do not re-place front panel at this time. Re­place front panel after making gas connections and
checking for leaks.

FLOOR MOUNTING AWAY FROM WALL:

Installing Support Feet (see gure 11)

1. Lay heater onto table on its back with bottom
edge overhanging table edge.

2. Securely attach feet to bottom of heater using
2 – self-tapping screws each.

Figure 11

Note: Feet should have long end going out the
front of heater, and the edge coinciding with side of
heater. If feet overhang side of the heater, switch
leg location.

3. Place heater on non-combustible surface (see
Locating Heater, page 6) before proceeding
with gas connection. If this will be a permanent
location, heater may be locked into position
using anchoring holes in mounting feet.

Screw
hole

Note: Use of oor mounting feet will require
you to use a 3/8 NPT street elbow to make gas
connection.

CONNECTING TO GAS SUPPLY

WARNING: A qualied service person must con-

nect heater to gas supply. Follow all local codes.

WARNING: This appliance requires a 3/8” NPT
(National Pipe Thread) inlet connection to the
pressure regulator. Use of oor mounting feet will
require you to use a 3/8 NPT street elbow to make
gas connection.

CAUTION: Never connect heater to private (non-utility)
gas well. This gas is commonly known as well-head gas.

IMPORTANT: Check your gas line pressure before
connecting heater to gas line. Gas line pressure
must be no greater than 14 inches of water. If gas line
pressure is higher, heater regulator damage could
occur.

CAUTION: Use only new black iron or steel pipe.

Internally-tinned copper tubing may be used in certain
areas. Check your local codes. Use pipe of larger
enough diameter to allow proper gas volume to heater.
If pipe is too small, undue loss of pressure will occur.

Installation must include an equipment shuto󰀨 valve,
union and plugged 1/8” NPT tap. Locate NPT tap within
reach of test gauge hookup. NPT tap must be upstream
from heater (see gure 12).

*A CSA/AGA certied equipment shuto󰀨 valve with
1/8” NPT tap is an acceptable alternative to test gauge
connection. Purchase the CSA/AGA certied equipment
shuto󰀨 valve from your dealer.

IMPORTANT: Install an equipment shuto󰀨 valve in an
accessible location. The equipment shuto󰀨 valve is for
turning on or shutting o󰀨 the gas to the appliance.

Apply pipe joint sealant lightly to male threads. This will
prevent excess sealant from going into pipe. Excess
sealant in pipe could result in clogged heater fuel train.

CAUTION: Use pipe joint sealant that is resistant to
natural gas.

Install sediment trap in supply line as shown in gure

12. Locate sediment trap where it is within reach
for cleaning. A sediment trap traps moisture and
contaminants. This keeps them from going into heater.
If sediment trap is not installed or is installed improperly,
heater may not run correctly.

IMPORTANT: Hold pressure regulator with wrench
when connecting it to gas piping and/or ttings.

Unvented Natural Gas Fired Room Heater

Installation Instructions and Owner’s Manual

8

HEATER CABINET

3/8” NPT Pipe Nipple

Ground Joint Union

Nipple

Shutoff Valve

1/8” NPT Plug Tap

Test Gauge
Connection

Reducer Bushing
to 1/8” NPT

Tee Joint

Nipple

Cap

Fuel line from

Gas Meter

(4”W.C to 10.5” WC Pressure)

Pressure
Regulator

Nipple

Tee Joint

Nipple

3” minimum

Figure 12

CHECKING GAS CONNECTIONS

WARNING: Test all gas piping and connections for

leaks after installing or servicing. Correct all leaks
at once.

WARNING: Never use an open ame to check for
a gas leak. Apply a mixture of liquid soap and water
to all joints. Bubbles forming show a leak. Correct
all leaks at once.

Sediment
Tra p

Low Pressure

Test Pressure Equal To or Less Than ½ psig (3.5 kPa)

1. Close equipment shuto󰀨 valve (see gure 13).

2. Pressurize supply piping system by either using
compressed air or opening main gas valve on
or near gas meter.

3. Check all joints from the gas meter to
equipment shuto󰀨 valve (see gure 14). Apply
mixture of liquid soap and water to gas joints.
Bubbles forming show a leak.

4. Correct all leaks at once.

5. Depressurize and relieve pressure from supply
piping system.

Pressure Testing Heater Gas Connections:

1. Make sure that the heater supply piping system
is connected and has been leak tested as
described above.

2. Make sure control knob of heater is in OFF
position.

Open

Equipment

Shuto󰀨 Valve

Closed

PRESSURE TESTING GAS SUPPLY PIPING
SYSTEM

High Pressure

Test pressure in Excess of ½ psig (3.5kPa)

1. The appliance and its appliance main gas valve
must be disconnected from the gas supply
piping system during any pressure testing of

that system at test pressures in excess of ½
psi (3.5 kPa). The appliance must be isolated
from the gas supply piping system by closing
its equipment shuto󰀨 valve during any pressure
testing of the gas supply piping system at test

pressures equal to or less than ½ psi (3.5 kPa).

2. Cap o󰀨 open end of gas pipe where equipment
shuto󰀨 valve was connected.

3. Pressurize supply piping system by either using
compressed air or opening main gas valve on
or near gas meter.

4. Check all connections and joints in gas supply
piping system. Apply mixture of liquid soap and
water to gas joints. Bubbles forming show a leak.

5. Correct all leaks at once.

6. Depressurize and relieve pressure in supply
piping system.

7. Reconnect heater and equipment shuto󰀨 valve
to gas supply.

8. Reconnected ttings must be checked for leaks
in next section.

Figure 13

3. Open equipment shuto󰀨 valve (see gure 13).

4. Open natural gas supply valve.

5. Check all joints from equipment shuto󰀨 valve
to control valve (see gure 14). Apply mixture
of liquid soap and water to gas joints. Bubble
forming show a leak.

Control Valve

To gas meter

Equipment

Shuto󰀨 Valve

Figure 14

6. Correct all leaks at once.

7. Light heater (see Operating Your Heater, page
page 10.

Unvented Natural Gas Fired Room Heater

Installation Instructions and Owner’s Manual

9

8. Turn o󰀨 heater (see To Turn OFF Gas to
Appliance, page 10.

9. Replace front panel.

OPERATING YOUR HEATER

FOR YOUR SAFETY READ BEFORE LIGHTING

WARNING: If you do not follow these instructions

exactly, a re or explosion may result causing
property damage, personal injury or loss of life.

A. This appliance has a pilot that must be lighted

by hand. When lighting the pilot, follow these
instructions exactly.

B. BEFORE LIGHTING smell all around the

appliance area for gas. Be sure to smell next to
the oor because some gas is heavier than air
and will settle on the oor.

WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electrical switch; do not use

any phone in your building.

• Immediately call you gas supplier from a

neighbor’s phone. Follow the gas supplier’s
instructions.

• If you can not reach your gas supplier, call the

re department.

• Use only your hand to push in or turn the gas
control knob. Never use tools. If knob will not
push in or turn by hand, don’t try to repair it; call
a qualied service technician or gas supplier.
Force or attempted repair may result in a re or
explosion.

• Do not use this appliance if any part has been
underwater. Immediately call a qualied service
technician to inspect the appliance and to
replace any part of the control system which
has been underwater.

Note: The rst time that the heater is operated after
connecting the gas supply, the control knob should
be depressed for about 30 seconds. This will allow
air to bleed from the gas system.

6. Push in control knob and rotate control
knob back to OFF position then rotate
counterclockwise to PILOT/IGN position. This
will light pilot. If needed gently keep rotating
control knob back and forth while depressed
until pilot lights.

7. Keep control knob depressed in for ten (10)
seconds after lighting pilot. If pilot goes out,
repeat steps 4, 5, 6 and 7.

If pilot does not stay lit, refer to

Troubleshooting, pages 12-13. Also, contact
a qualied service person or gas supplier for
repairs.

If control knob does not pop up when released,

contact a qualied service person or gas
supplier for repairs.

8. FOR RD10NG: Turn control knob to “HI” to light
heater. Both tiles will light in the “HI” position and
one tile in the “LO” position. Leave on “HI” position
until the burner tiles have turned bright orange.

After the burner tiles have turned bright orange,

adjust heat output by turning Control Knob to
desired position (“LO” or “HI”).

FOR BF10NG: When the pilot is lit, turn the control
knob to “HI” position to light.

FOR BF10NG: After ame is established on
“HI”, adjust heat output by turning control knob
to desired position (“LO” or “HI”). Do not operate
heater between locked positions.

Control Knob

LIGHTING INSTRUCTIONS

1. STOP! Read the all safety information included
with and on the side of heater.

2. Check that gas supply to heater is on.

3. Push in gas control knob and slightly turn
clockwise to the OFF position (see gure

16).

Note: Knob cannot be turned from PILOT to OFF
unless knob is pushed in slightly. Do not force.

4. Wait ve (5) minutes to clear out any gas.
Then smell for gas, including near the oor. If
you smell gas, STOP! Follow “B” in the safety
information above. If you do not smell gas, go
to the next step.

5. Push in gas control know slightly and turn
counterclockwise to PILOT/IGN and

depress for ve (5) seconds.

Unvented Natural Gas Fired Room Heater

Figure 16

CAUTION: Do not try to adjust heating level by using
equipment shuto󰀨 valve.

WARNING: When running heater, set control knob
at “LO” or “HI” locked positions. Poor combustion
and higher levels of carbon monoxide may result
if heater is operated with control knob positioned

between locked positions.

IMPORTANT: Release downward pressure while
turning control knob. Control knob must be locked at
the desired position.

Installation Instructions and Owner’s Manual

10

TO TURN OFF GAS TO APPLIANCE

SHUTTING OFF HEATER:

1. Turn o󰀨 equipment shuto󰀨 valve.

2. Turn control knob clockwise to the OFF

position.

SHUTTING OFF BURNER ONLY (PILOT STAYS LIT)

1. Turn control knob clockwise to the

PILOT/IGN position.

INSPECTING BURNER

Check pilot ame pattern and burner ame pattern
often.

PILOT FLAME PATTERN

Figure 17 show a correct pilot ame pattern and an
incorrect pilot ame pattern. The incorrect pilot ame
pattern is not touching thermocouple. This will cause
the thermocouple to cool. When the thermocouple
cools, the heater will shut down. If pilot ame pattern is
incorrect, as shown in Figure 17:

• Turn heater o󰀨 (see To Turn OFF Gas to

Appliance, page 10.

• See Troubleshooting, pages 12-13.

CLEANING ODS/PILOT AND BURNER

• Use as vacuum cleaner, pressurized air or

small soft bristled brush to clean.

CLEANING BURNER PILOT AIR HOLE INLET

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 psig.

This can be done by using a vacuum cleaner in the
blow position, 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 burner or
pilot assembly. In addition, the directions that follow
should also be followed.

1. Shut o󰀨 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 port/slots and holes in the
burner.

A yellow tip on the pilot ame indicates dust and dirt in
the pilot assembly. To clean the pilot assembly nd the
small pilot air inlet hole about two inches from where
the pilot ame comes out of the pilot assembly (see
gure 18). With the unit o󰀨, lightly blow air through the
air inlet hole. You may blow through a drinking straw if
compressed air is not available.

Correct pilot position.

Correct pilot position.

Figure 17

CLEANING AND MAINTENANCE

WARNING: Turn o󰀨 heater and let cool before

servicing.

For maintenance of the inside cabinet or to access
the burner and pilot assembly for cleaning or service.
Remove the four screws(two located on each side) that
secure the front shell to the unit.(Figure 6) Gently lift
up on the front shell to disengage the hooks and pull
forward to remove it. You will now be able to access all
of the internal components of the appliance.

CAUTION: You must keep control areas, burner and
circulation air passageways of heater clean. Inspect
these areas of heater before use. Have the heater
inspected yearly by a qualied service person. Heater
may need more frequent cleaning due to excess lint
from carpeting, bedding material, pet hair, etc.

Make sure grille guard is in place before running
heater. If screen or grille guard is removed for servicing
it must be replaced prior to operating the heater.

WARNING: Failure to keep the primary air
opening(s) of the burner(s) clean may result in
sooting and property damage.

CLEANING HEATER 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.

Pilot Air Inlet Hole

Pilot Assembly

Figure 18

Unvented Natural Gas Fired Room Heater

Installation Instructions and Owner’s Manual

11

TROUBLESHOOTING

NOTE: All troubleshooting items are listed in order of operation and likely occurrence.

WARNING: Only a qualied service person should service and repair heater.

CAUTION: Never use a wire needle, or similar object to clean ODS/pilot. This can damage ODS/pilot unit.

Make sure grille guard is in place before running heater. If screen or grille guard is removed for servicing it must be
replaced prior to operating the heater.

WARNING: If you smell gas:

• Shut o󰀨 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 you gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

• If you cannot reach your gas supplier, call the re 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 and possible discoloration of walls and ceilings.

OBSERVED SYMPTOM POSSIBLE CAUSE REMEDY

When ignitor button is pressed in,
there is a spark at the ODS/pilot but no
ignition

Burner does not light after ODS/pilot

is lit

Delayed ignition of burner 1. Manifold pressure is too low

1. Control knob not fully pressed in.

2. Control knob not pressed in long enough

3. Equipment shuto󰀨 valve not fully open

4. Thermocouple connection loose at control valve

5. Pilot ame not touching thermocouple, which
allows thermocouple to cool, causing pilot ame
to go out. This problem could be caused by one
or both of the following:

a. Low gas pressure
b. Dirty or partially clogged ODS/pilot

6. Thermocouple damaged

7. Control valve damaged

1. Burner orice is clogged

2. Burner orice diameter to small

3. Inlet gas pressure is too low

2. Burner orice is clogged

1. Press in control knob fully

2. After ODS/pilot lights, keep control knob
pressed in for 30 seconds

3. Fully open equipment shuto󰀨 valve

4. Hand tighten thermocouple nut until snug, and
then tighten 1/4 turn more.

5. Clean ODS/pilot (see Cleaning and
Maintenance, page 11).

6. Replace thermocouple

7. Replace Control valve.

8. Contact local gas company

1. Clean burner orice (see Cleaning and
Maintenance on page 11), or replace burner
orice

2. Replace burner orice

3. Contact local gas company

1. Contact local gas company

2. Clean burner orice (see Cleaning and
Maintenance on page 11), or replace burner
orice

Burner backring during operation 1. Burner orice is clogged or damaged

Burner plaque(s) does not glow [Infra-

red Only]

Slight smoke or odor during initial
operation

Heater produces a whistling noise when
burner is lit

Unvented Natural Gas Fired Room Heater

2. Burner damaged

3. Gas regulator defective

1. Plaque damaged

2. Control knob set between locked positions.

3. Inlet gas pressure is too low

1. Residues from manufacturing process 1. Problem will stop after a few hours of opera-

1. Turning control knob to HI position when burner

is cold

2. Air in gas line

3. Air passageways on heater blocked

4. Dirty or partially clogged burner orice.

Installation Instructions and Owner’s Manual

12

1. Clean burner orice (see Cleaning and
Maintenance on page 11), or replace burner
orice

2. Replace burner

3. Replace gas regulator

1. Replace burner

2. Turn control knob until it locks at desired set­ting.

3. Replace gas regulator

tion

1. Turn control knob to LO position and let warm
up for a minute.

2. Operate burner until air is removed from line
have gas line checked by local gas company.

3. Observe minimum installation clearances (see
Figure 4 page6)

4. Clean burner orice (see Cleaning and
Maintenance on page 11), or replace burner
orice.

OBSERVED SYMPTOM POSSIBLE CAUSE REMEDY

White powder residue forming within
burner box or on adjacent walls or

furniture

Heater produces unwanted odors. 1. Heater burning vapors from paint, hair spray,

1. When heated, vapors from furniture polish, wax,
carpet cleaners, etc., turn into white powder

residue

glues, etc. See IMPORTANT statement above

2. Gas leak. See WARNING statement at top of
page.

1. Turn heater o󰀨 when using furniture polish,
wax, carpet cleaner or similar products.

1. Ventilate room. Stop using odor-causing prod­ucts while heater is running.

2. Locate and correct all leaks (see Checking
Gas Connections, page 9)

Heater shuts o󰀨 in use (ODS operates) 1. Not enough fresh air is available

2. Low line pressure

3. ODS/pilot is partially clogged

Gas odor even when control knob is in
OFF position

Gas odor during combustion 1. Foreign matter between control valve and

Heater produces a clicking/ticking noise
just after burner is lit or shut o󰀨

Moisture/condensation noticed on
windows

1. Gas leak. See WARNING statement at top of
page

2. Control valve is defective

burner

2. Gas leak. See WARNING statement at top of
page

1. Metal expanding while heating or contracting
while cooling

1. Not enough combustion/ventilation air 1. Refer to Fresh Air for Combustion and

1. Open window and/or door for ventilation

2. Contact local gas company

3. Clean ODS/pilot (see Cleaning and
Maintenance, page 11)

1. Locate and correct all leaks (see Checking
Gas Connections, page 9)

2. Replace control valve

1. Take apart gas tubing and remove foreign

matter

2. Locate and correct all leaks (see Checking
Gas Connections, page 9)

1. This is common with most heaters. If noise is
excessive, contact qualied service person

Ventilation page 3 through 5.

Unvented Natural Gas Fired Room Heater

Installation Instructions and Owner’s Manual

13

PARTS LIST AND DIAGRAM

MODEL: HSFBF10NG

ITEM P/N PART DESCRIPTION QTY ITEM P/N PART DESCRIPTION QTY

1 80040 Wire Guard 1 13 N/A Regulator Mounting Bracket 1

2 80051 Front Panel 1 14 80020 Regulator Connection 1

3 80038 Glass 1 15 80058 Floor Mounting Feet 1

4 80024 Reflector 1 16 80052 Back Panel 1

5 80026 Reflector Back Panel 1 17 80036 Wall Mounting Bracket 1

6 N/A Burner Left Bracket 1 18 N/A Heat Shield 1

7 80057 ODS Pilot Assembly w/ Thermocouple (NG) 1 19 N/A Back Heat Shield 1

8 80017 Burner Assembly 1 20 N/A Valve Bracket 1

9 80009 Orifice 1 21 80006 Knob 1

10 N/A Burner Right Bracket 1 22 80080 Valve 1

11 70597 3/8” FTP x 3/8” MPT Elbow 1 23 80034 Glass Bracket 1

12 80084 Regulator 1 ** 70342 Hardware Kit (not shown) 1

WARNING: Failure to position the parts in accordance with these diagrams or failure to use only parts specically approved with this heater
may result in property damage or personal injury.

21

23

3

4

22

5

6

20

19

18

14

17

16

13

7

8

9

1

10

12

11

2

15

Unvented Natural Gas Fired Room Heater

Installation Instructions and Owner’s Manual

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

PARTS LIST AND DIAGRAM

MODEL: HSVFRD10NG

ITEM P/N PART DESCRIPTION QTY ITEM P/N PART DESCRIPTION QTY

1 80040 Wire Guard 1 11 80020 Regulator Connection 1

2 80051 Front Panel 1 12 80058 Floor Mounting Feet 1

3 80024 Reflector 1 13 80052 Back Panel 1

4 80030 Burner Assembly 1 14 80036 Wall Mounting Bracket 1

5 80057 ODS Pilot Assembly w/ Thermocouple (NG) 1 15 N/A Heat Shield 1

6 N/A ODS Bottom Bracket 1 16 80053 Back Heat Shield 1

7 N/A Fireproof Plate 1 17 80005 Valve Bracket 1

8 70597 3/8” FTP x 3/8” MPT Elbow 1 18 80006 Knob 1

9 80084 Regulator 1 19 80080 Valve 1

10 N/A Regulator Mounting Bracket 1 ** 70342 Hardware Kit (not shown)

WARNING: Failure to position the parts in accordance with these diagrams or failure to use only parts specically approved with this heater
may result in property damage or personal injury.

Unvented Natural Gas Fired Room Heater

Installation Instructions and Owner’s Manual

15

OPERATING INSTRUCTIONS

Model #

HSVFRD10NG

AND OWNER’S MANUAL

READ INSTRUCTIONS CAREFULLY: Read and follow all instructions. Place instructions in a safe

place for future reference. Do not allow anyone who has not read these instructions to assemble,
light, adjust or operate the heater.

HSVFBF10NG

WARNING:

USE ONLY MANUFACTURER’S REPLACEMENT PARTS. USE OF ANY OTHER PARTS
COULD CAUSE INJURY OR DEATH. REPLACEMENT PARTS ARE ONLY AVAILABLE
DIRECT FROM THE FACTORY AND MUST BE INSTALLED BY A QUALIFIED SERVICE

AGENCY.

REPLACEMENT PARTS ORDERING INFORMATION:

PURCHASING: Accessories may be purchased at any Enerco Technical Products local

dealer or direct from the factory

FOR INFORMATION REGARDING SERVICE

Please call Toll-Free 866-447-2194
WWW.HEATSTARBYENERCO.COM

Our office hours are 8:00 AM – 5:00 PM, EST, Monday through Friday.

Please include the model number, date of purchase, serial number and description
of problem in all communication.

LIMITED WARRANTY

Enerco Group, Inc. (EGI) warrants Heatstar Vent free heaters to be free from defects

in material and workmanship for a period of five years from the date of manufacture.

• During the first two years, EGI will repair or replace this product if it is proven to
be defective within the first two years and it is returned at customer expense with
proof of purchase to the location of EGI’s choice. EGI will be the sole judge of what

is determined to be a defect.

• In year’s three to five, EGI will provide replacements for defective parts to the customer

free of charge.

This warranty gives you specific legal rights, and you may also have other rights which
vary from state to state.

Enerco Technical Products, Inc. reserves the right to make changes at any time, without

notice or obligation, in colors, specifications, accessories, materials and models.

PRODUCT REGISTRATION: Thank you for your purchase.

Please log in to http://www.egiregistration.com to register your product.

HEATSTAR, INC., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 • 866-447-2194
HEATSTAR is a registered trademarks of Enerco Technical Products, Inc.
© 2017, Enerco Technical Products. All rights reserved

Unvented Natural Gas Fired Room Heater

Installation Instructions and Owner’s Manual

16

ANSI Z21.11.2 - 2013