Desa CHD24B User Manual
Portable Infra-Red Heater for Nonresidential
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Space Heating Owner’s Manual
MODELS CHD24B AND TTC24B
HEATER SIZE: 8,000 – 24,000 BTU/HR
FOR YOUR SAFETY
If you smell gas:
1. Shut off gas to appliance.
2. Extinguish any open flame.
FOR YOUR SAFETY
Do not store or use gasoline or other flammable vapors
and liquids in the vicinity of this or any other appliance.
WARNING
CARBON MONOXIDE HAZARD
This appliance can produce carbon mon-
oxide which has no odor.
Using it in an enclosed space can kill you.
Never use this appliance in an enclosed
space such as a camper, tent, car, or home.
Save this manual for future reference.
For more information, visit www.desatech.com
Safety Information ............................................... 2
TABLE OF CONTENTS
Assembly ............................................................. 3
Connecting Heater To Propane Tank ................... 3
Lighting Heater .................................................... 4
To Turn Off Heater ...............................................
Maintenance ........................................................ 5
Replacement Parts .............................................. 5
Parts List ............................................................. 6
Heater Information ............................................... 6
5
Warranty Information ...........................................
8
SAFETY INFORMATION
Read and understand this manual before using
this heater. Improper use of this heater can cause
serious injury. Do not allow anyone who has not
read this manual to operate this heater. Keep this
manual for reference. It is your guide to safe and
proper operation of this heater.
1. For outdoor use only. Do not use inside house,
camper, tent, vehicle, or any type of unvented
or enclosed area.
2. Use heater in areas free from open flames,
combustible vapors, and dust.
3. Never operate heater while sleeping or unat
tended.
4. Minimum heater clearances from combus
tibles: Top and Front: 5 ft (1.5 m); Sides and
Rear: 3 ft (1 m).
5. This heater consumes air. Provide a fresh air
opening of at least 12 in2 (77 cm2).
6. Use only in well-vented areas.
7. Before connecting heater to propane tank,
make sure heater regulator knob is in the
“OFF” position. Always connect and light
heater in areas free of open flames.
8. Use only propane gas set up for vapor with
drawal.
9.
The LP gas cylinder must be constructed and
marked in accordance with the specifications for
the LP gas cylinders of the US Department of
Transportation (DOT) or Transport Canada.
10. Before each use, check heater for leaks. Never
use an open flame to check for a leak. Apply a
mixture of liquid soap and water to all joints.
Bubbles forming show a leak. Correct all leaks
at once.
11. The installation must conform with local
building codes or, in the absence of local
codes, with the current CAN1 - CAN149
Installation Code.
12. Keep chil dren and animals away from
heater.
13. Do not use heater below ground level. Propane
is heavier than air. If a leak occurs, propane
gas will sink to the lowest possible level. If
you smell gas or suspect a leak, shut off the
propane tank valve at once and ventilate the
area. Do not strike a match or create any flame
or electric spark. Find and correct the leak
before attempting to light any appliance. If
you cannot correct leak, do not tamper with
heater. Return heater to nearest authorized
service center or to address on back page of
this manual, freight prepaid.
14. Storage of heater is permissible only if the
-
cylinder is disconnected and removed from
heater.
-
15. Do not move or handle a hot or operating
heater. Do not attach or remove a hot or op
erating heater from the propane tank. Severe
burns may result.
16. Always remove heater from propane tank
after each use. Always store propane tank
outdoors in a well ventilated space out of the
reach of children. Never store propane tank in
a building, garage, or any other enclosed area.
Never store propane tank near high heat, open
flame, or where temperatures exceed 100° F
(38° C).
17. Keep all connections and fittings clean. Make
sure propane tank valve outlet is clean. Check
the “O” ring on the heater inlet fuel connector
for damage before each use. Replace if worn
or damaged.
18. Do not attempt to light one burner off of the
other. Use one match per burner.
19. Do not overlap or point burners at each
other.
20. Do not raise burner heads and cover air
inlet holes in mixing tube with burner head
bracket.
21. Wing nuts and burner heads become very hot
during operation. Do not attempt to adjust
burner position while heater is operating. Al
low 15 minutes to cool.
22.
For use with 20 lb. propane cylinders or larger.
-
-
www.desatech.com
102414-01E2
ASSEMBLY
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1. Place each burner head onto the burner bracket
as shown in Figure 1.
CAUTION: The burner heads
should be positioned as far
down on the burner bracket as
possible. Make sure the air inlet
holes in the mixing tube on the
burner head are not covered by
the burner bracket.
2. Insert two bolts through square holes and then
through round holes in burner bracket.
3. Place two flat washers onto bolts. Thread wing
nuts onto bolts.
4. Carefully thread mounting bolt into tank collar
bracket on the lower portion of the post.
Burner
Bracket
Wing Nut
and Washer
5. Connect both hoses to inlet connectors (see
Figure 3). Tighten firmly using wrench. Make
sure both hoses are connected before opening
the tank valve.
6. Open propane tank valve slowly.
7. Check all fittings for leaks. Apply a mixture
of liquid soap and water to all joints. Bubbles
forming show a leak. Correct all leaks at
once.
WARNING: Never use an
open flame to check for a leak.
8. Always remove propane tank from heater after
each use. Do not store heater while attached
to propane tank.
Mounting
Bolt
Tank
Collar
Mixing
Tube
Tank Collar
Bracket
Figure 2 - Assembling Heater
Air Inlet
Hole
Figure 1 - Attaching Heater to Bracket
CONNECTING HEATER TO
PROPANE TANK
Read and understand all safety information before
connecting heater to propane tank.
1. Place heater onto tank with tank collar bracket
over tank collar (see Figure 2). Mounting bolt
should be positioned to the outside of tank
collar.
2. Firmly secure to tank by hand-tighten mount
ing bolt. Do not over-tightening mounting
bolt.
3. Make sure heater regulator knob is in the
“OFF” position.
4. Wrench tighten the fuel connector nut into
the propane tank valve with both gas hose
fittings in a horizontal position (see Figure
3). Turn fuel connector nut counterclockwise
to tighten. Threads are left-handed.
102414-01E 3
www.desatech.com
Inlet Connectors
Propane
Tank Valve
-
Heater
Regulator
Fuel Connector Nut
Knob
Figure 3 - Connecting Heater to
Propane Tank
Hang
Tag
LIGHTING HEATER
Read and understand all safety information before
operating heater.
1. Adjust burners to desired position by loos
ening wing nuts on back of burner head
bracket.
WARNING: Wing nuts and
burner heads become very hot
during operation. Do not attempt
to adjust burner position while
heater is operating. Allow 15
minutes to cool.
WARNING: Do not raise
burner heads and cover air
inlet holes in mixing tube with
burner bracket. Firmly tighten
wing nuts to secure burners. Do
not overlap or direct burners at
each other.
WARNING: Make sure there
is no open flame in the area.
Make sure there are no flammable vapors or liquids in the
area during lighting.
2. Fully open the propane tank valve.
3. Turn the heater regulator knob counterclock
wise to the “HI” position (see Figure 4).
4. Locate ignition hole in underside of burner
(see Figure 5). Hold a lit match under ignition
hole. Push in the safety shutoff valve plunger
(see Figures 4 and 5). Burner should light.
-
Mesh screen on burner glows red when lit.
After burner is lit, continue holding in safety
shutoff valve plunger for 10 to 30 seconds
until heater stays lit.
5. If the burner does not light within 30 seconds,
turn the regulator knob to the “OFF” position.
Wait at least two minutes for the gas to dis
sipate before relighting.
6. If heater will not light after repeated tries,
do not attempt to repair heater. Return heater
to nearest authorized service center or to
address on back page of this manual, freight
prepaid.
7. After heater stays lit, turn the heater regulator
knob to the desired heat setting (LOW, MED,
or HI).
8. Light both burners when maximum heat is
needed. Use one burner to conserve fuel.
Repeat above steps to light second burner.
Safety Shutoff
Valve Plunger
-
Figure 4
Heater
Regulator
Knob
-
WARNING: Stand to the side
of the heater while lighting. Do
not stand or have any part of
your body in front of heater while
lighting. Do not attempt to light
one burner off of the other. Use
one match per burner.
CAUTION: Do not insert
match into air inlet holes in mix
ing tube.
WARNING: Do not push in
safety shutoff valve plunger
before introducing lit match.
www.desatech.com
Ignition Holes
-
Figure 5
Air Inlet
Hole
Safety Shutoff
Valve Plunger
102414-01E4
TO TURN OFF HEATER
1. Tightly close propane tank valve by turning
clockwise.
2. Turn the heater regulator knob to the “OFF”
position. Wait at least 15 minutes for the heater
to cool before handling heater.
3. Always remove the heater from the propane
tank after each use. Do not store heater while
attached to propane tank. Always store pro
pane tank outdoors. Never store propane tank
in an enclosed area.
MAINTENANCE
WARNING:
• Never attempt to service
heater while it is connected to
propane supply, operating, or
hot. Severe burns can occur.
• Keep heater clear and free
from combustible materials,
gasoline, and other flammable
vapors and liquids.
• Do not block the flow of combustion or ventilation air.
1. Keep heater clean. Clean heater annually or as
needed to remove dust and debris. If heater is
dirty or dusty, clean heater with a damp cloth.
Use household cleaners on difficult spots.
2. Inspect heater before each use. Check connec
tions for leaks. Apply mixture of liquid soap
and water to connections. Bubbles forming
show a leak. Correct all leaks at once.
3. Inspect hose/regulator assembly before each
use. If hose is highly worn or cut, replace.
4. Have heater inspected yearly by a qualified
service agency.
REPLACEMENT PARTS
WARNING: Use only original
replacement parts. This heater
must use design-specific parts.
Do not substitute or use generic
parts. Improper replacement
parts could cause serious or fa-
-
tal injuries. This will also protect
your warranty coverage for parts
replaced under warranty.
PARTS UNDER WARRANTY
Contact authorized dealers of this product. If they
canʼt supply original replacement part(s), call
DESA Industries at 1-905-826-8010.
When calling DESA Industries, have ready:
• your name and address
• model and serial numbers of your heater
• how heater was malfunctioning
• purchase date
In most cases, we will ask you to return the defec
tive part to the factory.
PARTS NOT UNDER WARRANTY
Contact authorized dealers of this product. If
they canʼt supply original replacement part(s),
call DESA Industriesʼ Parts Department at
1-905-826-8010.
When calling DESA Industries, have ready:
-
• model and serial numbers of your heater
• the replacement part number
-
102414-01E 5
www.desatech.com
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