Desa Td125, Td126, Td127, Td128 User Manual
Propane/LP Patio Heater
Owner’s Manual
31UT
WARNING: For
outdoor use only.
MODELS
TD125, TD126, TD127 AND TD128
IMPORTANT: Read and understand this manual before
assembling, starting or servicing heater. Improper use
of heater can cause serious injury. Keep this manual for
future reference.
FOR YOUR SAFETY
Do not store or use gasoline or other ammable vapors
and liquids in the vicinity of this or any other appliance.
FOR YOUR SAFETY
If you smell gas:
1. Shut off gas to the appliance.
2. Extinguish any open ame.
3. If odor continues, immediately call your gas
supplier.
Save this manual for future reference.
For more information, visit www.desatech.com
WARNING: Improper installation, adjustment, altera-
tion, service or maintenance can cause injury, property
damage, or death. Read the installation, operating, and
maintenance instructions thoroughly before installing
or servicing this equipment.
Specications ...................................................... 2
Safety .................................................................. 2
Propane/LP Safety .............................................. 4
Unpacking Heater ................................................ 4
Assembly ............................................................. 5
Checking for Leaks .............................................. 8
Locating Heater ................................................... 9
Operation ............................................................. 9
Storage .............................................................. 10
Servicing .............................................................11
Replacement Parts .............................................11
Technical Service................................................11
Parts .................................................................. 12
Warranty ............................................................ 16
SPECIFICATIONS
TABLE OF CONTENTS
• Rating: 40,000 Btu/hr (11.7 kW)
• Type of Gas: Propane/LP Only
•
Gas Supply Pressure to Regulator:
• Gas Supply Pressure Regulator Out: 11" W.C. (2.74 kPa)
• Ignition: TD125 Electronic Ignition, TD126, TD127, TD128 Manual Ignition
• Fuel Consumption: 1.8 lbs./hr (0.9 kg/hr)
• Flame Safety: Thermocouple Operated Gas Valve
Maximum - 150 psi (1034.2 kPa), Minimum - 5 psi (34.5 kPa)
SAFETY
WARNING: This product
contains and/or generates
chemicals known to the State
of California to cause cancer or
birth defects, or other reproductive harm.
WARNING: Not for home or
recreational vehicle use.
WARNING: Fire, burn, inhalation, and explosion hazard. Keep
solid combustibles, such as building materials, paper or cardboard,
a safe distance away from the
heater as recommended by the
instructions. Never use the heater
in spaces which do or may contain
volatile or airborne combustibles,
or products such as gasoline, solvents, paint thinner, dust particles
or unknown chemicals.
We cannot foresee every use which may be
made of our heaters. Check with your local
re safety authority if you have questions
about heater use.
Other standards govern the use of fuel gases
and heat producing products for specific
uses. Your local authorities can advise you
about these.
Carbon Monoxide Poisoning: Direct-Fired
means that all of the combustion products
enter the heated space. Even though this
heater operates very close to 100 % combus-
tion efciency, it still produces small amounts
of carbon monoxide. Some people are more
affected by carbon monoxide than others.
Early signs of carbon monoxide poisoning
resemble the u, with headaches, dizziness,
and/or nausea. If you have these signs, the
heater may not be working properly. Get fresh
air at once! Check for proper ventilation and
have heater serviced.
Propane Gas: Propane gas is odorless. An
odor-making agent is added to propane gas.
The odor helps you detect a propane gas
leak. However, the odor added to propane
gas can fade. Propane gas may be present
even though no odor exists.
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121117-01B2
SAFETY
Continued
This is a propane, direct-red heater. Propane
is heavier than air. If propane leaks from a
connection or tting, it sinks to the oor, collecting there with the surrounding air, forming
a potentially explosive mixture. Obviously,
propane leaks should be avoided, so set up
the propane supply with utmost care. Read
Propane/LP Safety, page 4 for additional in-
formation about detecting propane leaks. Leak
check new connections or reconnections with a
noncorrosive leak detection uid and follow all
connection instructions herein. Also, ask your
propane dealer for advice on the propane application and supply installation and ask them
to check it if there are any questions.
When the heater is to be operated in the presence of other people the user is responsible
for properly acquainting those present with
the safety precautions and instructions, and
of the hazards involved.
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.
1. State of Massachusetts: The installation
must be made by a licensed plumber or
gas fitter in the Commonwealth of Massachusetts.
2. Check heater thoroughly for damage. DO
NOT operate a damaged heater.
3. DO NOT modify heater or operate a
heater which has been modied from its
original condition.
4. Use only propane/LP gas.
5. Use only VAPOR WITHDRAWAL propane supply. The propane cylinder must
be arranged for vapor-withdrawal, in
accordance with the Compress Gas Associations, Small Propane Bottle Assembly. If there is any question about vapor
withdrawal, ask your propane dealer.
6. Use only hose and regulator assembly
provided with heater.
7. Inspect hose assembly before each use
of heater. If there is excessive abrasion
or wear, or hose is cut, replace with hose
assembly listed on parts list before using
heater.
8. This heater is for OUTDOOR USE ONLY.
Make sure there is ample fresh air ventila-
tion. Do not use in buildings, garages or
other enclosed spaces.
121117-01B 3
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9. If at any time gas odor is detected, IMMEDIATELY DISCONTINUE operation
until source of gas has been located and
corrected. Read Propane/LP Safety, page
4 for additional information about detecting propane leaks.
10. Do not expose heater to water spray, rain
and/or dripping water.
11. Maintain minimum clearance to people
or normal combustible material (paper)
of 3 ft. (91.44 cm) from top and 2 ft.
(60.96 cm) from reector.
12. Operate only on a stable, level surface.
13. Do not spray aerosols near heater during
use or shortly thereafter.
14. Do not clean heater with combustible or
corrosive cleaners. Use a noncorrosive
leak detection uid.
15. Check control compartment burners and
circulation air passageways for free air
passage. Make sure there are no obstructions. These areas are a common location
for spider webs, which can present a
dangerous condition, damage heater and
render it unsafe for use. Heater must be
checked if any of the following conditions
exist:
a) Gas smell along with predominate yel-
low tipping of burner.
b) Heater does not reach temperature.
c) Uneven burner glow.
d)
Burner makes popping noises during nor-
mal use, other than during shutdown.
16. Use only a noncorrosive leak detection
uid to conduct leak tests whenever a
propane cylinder is connected. Bubbles
indicate a leak.
17. Do not adjust gas regulator. If you are
unsure of your appliances gas type or
pressure, call a qualied service person.
18. Place control knob in OFF position when
heater is not in use.
19. Always disconnect gas supply after heater
is turned OFF.
20. Do not move, handle or service while hot
or burning.
21. Allow 45 minutes to cool down after use
before attempting to move heater.
22. Do not operate this appliance in windy
conditions. Maximum allowable wind
speed is 10 mph (16 Km/h).
SAFETY
Continued
23. Do not operate this appliance in temperature conditions below 40° F (5° C).
24. Keep heater away from areas where ammable liquids, vapors or solids are stored
or used.
25. If operated in salt air environments, unit will
require more frequent cleaning. Otherwise,
longevity of unit will deteriorate rapidly. Use
warm soapy water to clean unit.
26. Items or material stored under heater will
be subjected to radiant heat and could be
seriously damaged.
Any guard or other protective
device removed for servicing
must be replaced prior to operating the heater.
Surface temperatures become very
hot when operating heater. Children
and adults should stay away to
avoid burns or clothing ignition.
Young children should be carefully supervised when they are
in the area of the heater.
Clothing or other flammable
materials should not be hung
from the heater, or placed on or
near heater.
Installation and repair should
be done by a qualied service
person. The heater should be
inspected before use and at
least annually by a qualied
service person. More frequent
cleaning may be required as
necessary. It is imperative that
control compartments, burners
and circulating air passageways
of the heater be kept clean.
CAUTION: The gas pressure
regulator provided with this appliance must be used. This regulator is set for an output pressure
of 11" W.C. (2.74 kPa).
PROPANE/LP SAFETY
WARNING: For outdoor use
only.
ASPHYXIATION HAZARD
• Do not use this heater for heating human
or animal living quarters.
• Do not use in unventilated areas.
• The ow of combustion and ventilation
air must not be obstructed.
• Proper ventilation air must be provided
to support the combustion air requirements of the heater being used.
UNPACKING HEATER
1. Carefully remove packaging material
from box.
2. Carefully remove heater components from
box. Inspect parts for possible shipping
damage. If any is found, immediately
notify dealer.
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• Refer to the Specifications, page 2,
heater data plate or contact DESA Heating, LLC to determine combustion air
ventilation requirements of the heater.
• Lack of proper ventilation air will lead
to improper combustion.
• Improper combustion can lead to carbon monoxide poisoning leading to
serious injury or death. Symptom of
carbon monoxide poisoning can include
headaches dizziness and difculty in
breathing.
3. Check to make sure that all components
are included with your heater (see pages
12 and 13).
121117-01B4
ASSEMBLY
Tools Required:
• 1) #2 Phillips Head Screwdriver
• 2) Adjustable Wrenches
Hardware packet provided with heater may
contain more parts than needed for heater
assembly.
1. Attach wheel assembly to base using two
5/16" bolts, two 5/16" washers and two
5/16" nuts (see Figure 1).
2. Attach legs to base using two 1/4" bolts,
four 1/4" washers, two 1/4" lock washers
and two 1/4" nuts per leg (see Figure
2). Place washer on bolt then insert bolt
through leg and into top of base. Attach
5/16" Bolt,
Washer
and Nut
Base
Wheel
Assembly
washer, lock washer and nut from underneath base. Finger tighten only. Repeat
for each bolt and leg. Do not fully tighten
until next step.
3. Secure pole support to legs using two
1/4" bolts, four 1/4" washers, two 1/4" lock
washers and two 1/4" nuts per leg (see
Figure 2). Repeat for each leg. Wrench
tighten nuts and bolts from step 1 and 2.
4. Remove 4 bolts and washers in collar of
pole support (see Figure 3). Place pole
over pole support collar. Reattach and
tighten 4 bolts and washers.
5. Attach back cover using four 1/4" large
Phillips head screws and four 1/4" washers as shown in Figure 4.
Pole
Pole Support
Figure 1 - Attaching Wheels to Base
1/4" Bolt
and Washer
Pole
Support
1/4" Washer,
Lock Washer
and Nut
Legs
Base
1/4" Washer,
Lock Washer
and Nut
Figure 2 - Base Assembly
121117-01B 5
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Bolt and
Washer
Figure 3 - Pole to Pole Support
Back Cover
1/4" Large
Phillips Head
Screw and
1/4" Washer
Figure 4 - Attaching Back Cover
ASSEMBLY
Continued
6. Install tank door by placing cutouts on
sides over screws installed in step 5 (see
Figure 5).
7. Slide propane/LP cylinder top down pole
and over pole support (see Figure 6). Be
sure that propane/LP cylinder top rests
level on base.
Note: A cap support is provided on pole
support to lift top when changing propane/
LP cylinder.
8. Remove 4 screws in bottom of emitter.
Place burner assembly on emitter and
align holes. Replace screws. See Figures
7 and 8.
Figure 5 - Attaching Tank Door
Cap Support
Cutout in
Tank Door
Cylinder Cap
Burner
Assembly
Emitter
Figure 7 - Placing Burner Assembly Onto
Emitter
Figure 6 - Installing Cylinder Cap
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Figure 8 - Attaching Burner Assembly
and Emitter
121117-01B6
ASSEMBLY
Continued
9. Thread manifold to bottom of burner
assembly (see Figure 9). Tighten with
wrenches (see Figure 10.)
10. Temporarily connect hose and regulator
to manifold. Connect hose and regulator
to a 20 lb. propane cylinder.
DO NOT LIGHT HEATER!
Open propane cylinder valve. Leak test
burner assembly and manifold connection
using a noncorrosive leak detection uid.
DO NOT USE FLAME. See Checking for
Leaks, page 8. When there is no sign of a
leak, turn off propane/LP cylinder valve and
disconnect regulator from propane/LP gas
cylinder. Slowly loosen connection between
manifold and hose and regulator assembly.
Propane gas left in hose will escape.
Manifold
Burner
Assembly
Figure 9 - Attaching Manifold to Burner
Assembly
11. Remove bolts from burner assembly.
Carefully lean base and pole assembly
over and insert manifold and burner
assembly through pole (see Figure 11).
Replace bolts.
12. Remove blue lm from dome top. Dome
attaches to burner assembly with three
5/ 1 6" nuts and six 5/16 " wa s hers.
Place 1 washer on each threaded stud
of burner assembly. Place dome over
studs. Attach 3 washers and nuts to
studs. See Figure 12.
Burner
Assembly
Bolts
Removed
From Here
Bolts Reinstalled
Through Here
Figure 11 - Sliding Manifold and Burner
Assembly into Pole
Manifold
Pole
Figure 10 - Tightening Manifold and
121117-01B 7
Burner Assembly
Figure 12 - Attaching Dome to Burner
Assembly
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ASSEMBLY
Continued
13. Remove tank door. Wrench tighten regulator and hose assembly to manifold as
shown in Figure 13. Check connections
for gas leaks (see Checking for Leaks).
Note: Make sure hose and regulator as-
sembly attached to manifold are never
bent or kinked during installation and
operation of heater.
14. Place propane/LP tank on top of base.
Attach regulator.
15. Install propane tank safety chain around
tank and into openings on legs as shown
in Figure 14.
16. Reinstall door.
Cap Support
Safety
Chain
Figure 13 - Attaching Regulator and
Hose Assembly
CHECKING FOR LEAKS
IMPORTANT: The heater must be leak tested
before any further assembly is done. Use only
a noncorrosive leak detection uid. DO NOT
USE FLAME.
Turn control knob to the OFF position. Se-
curely connect regulator to propane/LP gas
cylinder. Open propane/LP cylinder valve.
Apply a noncorrosive leak detection uid to
connections at the manifold and regulator
connections. Bubbles forming show a leak.
Figure 14 - Propane Tank and Safety
Chain
In case of any leaks, turn off propane/LP
cylinder valve, remove manifold, check and
clean connection. Reconnect manifold and
leak test again.
Upon completion of leak test, and when
there is no sign of a leak, turn off propane/LP
cylinder valve and disconnect regulator from
propane/LP gas cylinder. Remove propane/LP
gas cylinder and continue to next step.
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121117-01B8
LOCATING HEATER
WARNING: Do not move
heater when lit. Allow heater to
cool before moving.
1. Locate pop-out wheel decal on base of
heater (see Figure 15).
Pop-out
Wheel
Decal
Wheel
Figure 15 - Pop-out Wheels
2. Standing on decal side of heater, carefully lean heater away from you to access
wheels underneath base.
3. Swing wheels out from under base to
relocate heater.
4. Replace wheels underneath base after
placing heater in desired location.
Figure 16 - Locating Heater
OPERATION
4. Place propane/LP gas cylinder inside
WARNING: If you smell gas:
• Shut off gas to the appliance.
• Extinguish any open ames.
• If odor continues, immediately
call your gas supplier.
See safety warnings and precautions starting on the front
page of this manual for more
information.
PREPARING FOR OPERATION
1. Check heater for possible shipping damage.
If any is found, immediately notify dealer.
2. Follow all safety information starting on
page 2.
3. Check and assure control knob is in the
OFF position.
121117-01B 9
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cylinder base. Securely connect regulator
to propane/LP gas cylinder.
5. Turn cylinder valve on. Apply a noncor-
rosive leak detection uid to connection
at regulator and cylinder. Bubbles forming
show a leak.
6. In case of any leaks, turn off propane/LP
cylinder valve, undo leaking connection.
Check and clean connection. Reconnect
regulator and leak test again.
IMPORTANT: On new installations or routine
gas cylinder changes. The system must be
purged of air before use. Turn control knob
to the pilot setting. Press and hold for 30-40
seconds before attempting to light pilot.
OPERATION
Continued
TO LIGHT
1. Shut main gas supply valve on propane
cylinder off. Set heater control knob to
OFF position. Wait 5 minutes.
2. Open main gas supply valve on propane
cylinder.
3. Turn heater control knob to the PILOT position. Push and hold for 5 seconds. Press
igniter button until pilot is lit. Continue to
hold heater control valve for 30 seconds
then release.
CAUTION: Do not attempt to
slide viewing hole cover when
main burner is lighting, operating or hot.
4. TO MATCH LIGHT PILOT: Rotate match
light hole cover. Apply ame to pilot burner
while holding knob in for 20 seconds or
until pilot remains lit when knob is released.
5. Knob can now be turned to the ON
position.
IMPORTANT: Smoke and odor (not a gas
odor) emission may occur in the rst 30 min-
utes of use. Run heater at high setting for at
least 30 minutes to eliminate this problem.
WARNING: If you smell gas
while in use, immediately press
and turn control knob to the OFF
position to shut down heater.
TO SHUT DOWN
1. Turn control knob to the OFF position.
2. Shut off main gas supply.
3. Wait 5 minutes before relighting heater.
Viewing Hole
and Cover
STORAGE
1. Allow at least 45 minutes for heater to cool
down after using.
2. Store heater upright in a sheltered area
away from inclement weather and dust.
3. If desired, cover heater after heater has
cooled.
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Control
Knob
Ignitor Button
Figure 17 - Heater Controls and Viewing
Hole and Cover
4. If heater is not to be used for an extended
period of time, disconnect and remove
propane/LP gas cylinder and store in accordance with the Standard for Storage
and Handling of Liquefied Petroleum
Gases, ANSI/INFPA 58.
121117-01B10
SERVICING
To assure safety, proper function and longevity of the heater, regular maintenance is
required. The frequency of maintenance will
depend on the usage of the unit. Review the
following concerning the criteria for a properly
functioning heater. Failing to follow proper,
regular maintenance will void warranty.
A hazardous condition may result if a heater
is used that has been modied or is not func-
tioning properly. When the heater is working
properly:
• The ame is contained within the heater.
• The ame is essentially blue with perhaps
some yellow tipping.
• There is no strong disagreeable odor, eye
burning or other physical discomfort.
REPLACEMENT PARTS
WARNING: Use only original
replacement parts. This heater
must use design-specic parts.
Do not substitute or use generic
parts. Improper replacement
parts could cause serious or fatal injuries. This will also protect
your warranty coverage for parts
replaced under warranty.
PARTS UNDER WARRANTY
Contact authorized dealers of this product. If
they can’t supply original replacement part(s),
either contact your nearest Parts Central or
call DESA Heating, LLC at 1-866-672-6040.
• There is no smoke or soot internal or external to the heater.
• There are no unplanned or unexplained
shut downs of the heater.
The parts list shows the heater as it was constructed. Do not use a heater which is different
from that shown. In this regard, use only the
hose, regulator and cylinder connection tting
(called a POL tting) supplied with the heater.
IMPORTANT: Do not use alternates. For this
heater, the regulator must be set as shown
in Specications, page 2. If there is any un-
certainty about the regulator setting, have it
checked by a qualied service person.
When calling DESA Heating, LLC have
ready
• your name
• your address
• model number of your heater
• how heater was malfunctioning
• purchase date
PARTS NOT UNDER WARRANTY
Contact authorized dealers of this product. If
they can’t supply original replacement part(s),
either contact your nearest Parts Central
(listed in Authorized Service Center booklet)
or call DESA Heating, LLC at 1-866-672-6040
for referral information.
When calling DESA Heating, LLC have
ready
• model number of your heater
• the replacement part number
TECHNICAL SERVICE
A heater which is not working right must be
repaired, but only by a trained, experienced
service person. To nd the service center
closest to you, or if you have further questions
about this heater, contact DESA Heating, LLC
at 1-866-672-6040. When calling, please
have your model and serial numbers of your
heater ready.
121117-01B 11
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You can also visit DESA Heating, LLC's web
site at www.desatech.com.
You may also obtain in-warranty or out of
warranty service by taking the product to your
local service center.
1
2
3
4
34
33
22
31
29
30
23
35
24
25
26
32
19
27
21
9
10
7
13
15
12/14
16
17
11
5
8
20
6
28
18
MODELS
TD125, TD126, TD127, TD128
PARTS
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121117-01B12
This list contains replaceable parts used in your heater. When ordering parts, follow the
PARTS
instructions listed under Replacement Parts on page 11 of this manual.
KEY
NO. PART NO. DESCRIPTION QTY
1 V01-001 Dome • • • • 1
2 V01-002 Emitter Cap • • • • 1
3 V01-003 Emitter • • • • 1
4 V01-005 Emitter Bottom • • • • 1
5 V01-008 Pilot Cover • • • • 1
6 V01-004 Main Burner • • • • 1
7 V01-028 Copper Nut • • • • 1
8 V01-007 Pilot Burner Assembly • • • • 1
9 V01-006 View-hole Cover • • • • 1
10 V01-011 Insulation Panel • • • • 1
11 V01-009 Face Panel (English Operation) • • • • 1
12 V01-026 Main Nozzle • • • • 1
13 V01-034 Knob • • • • 1
14 V01-027 Nozzle Connector • • • • 1
15 V01-012 Valve Support • • • • 1
16 V01-029 Main Burner Gas Line • • • • 1
17 V01-037 Valve Assembly • • • • 1
18 V01-030 Connector Tube • • • • 1
19 V01-036 Ignitor, Manual • • • 1
V01-036E Ignitor, Electronic • 1
20 V01-023 Ignitor Line • • • • 1
21 V01-031 Gas Line • • • • 1
22 V01-015 Post • • • • 1
23 V01-017 Cylinder Cap • • • • 1
24 V01-016 Post Support • • • • 1
25 V01-022 Cylinder Cap Support • • • • 1
26 V01-019 Back Cover • • • • 1
27 V01-045 Regulator Assembly • • • • 1
28 V01-018 Door • • • • 1
29 V01-020 Legs • • • • 3
30 V01-032 Chain • • • • 1
31 V01-021K Base Kit • • • • 1
32 V01-014 Valve Housing Bottom • • • • 1
33 V01-013 Gas Line Fixed Plate • • • • 1
34 V01-010 Valve Housing • • • • 1
35 V01-035 O Ring • • • • 1
PARTS AVAILABLE - NOT SHOWN
NV02-08-00 Wheel Assembly • • • • 1
121119-01 Hardware Package • • • • 1
114124-01 Warning Hang Tag, English • • • • 1
114124-02 Warning Hang Tag, Spanish • • • • 1
114124-03 Warning Hang Tag, French • • • • 1
114122-02 Operation Decal, English • • • • 1
114124-06 Operation Hang Tag, Spanish • • • • 1
114124-07 Operation Hang Tag, French • • • • 1
121420-01 Wheel Warning Decal • • • • 1
TD125
TD126
TD127
TD128
121117-01B 13
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NOTES
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121117-01B14
NOTES
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121117-01B 15
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