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Operation

Ventilation

Risk of indoor air pollution and Carbon

Monoxide Poisoning. Use heater only in

well ventilated areas.

Refer to Safety Information on pages 1-2

for information about Carbon Monoxide 

Poisoning.

ALWAYS

 provide a fresh air opening in the

heated space of at least 3 square feet (2,800

sq. cm) for each 100,000 BTU / Hr. of heater

output. Provide a larger opening if more

heaters are being used.

– FOR OUTDOOR USE. INDOOR USE

PERMITTED ONLY FOR: The temporary

heating of adequately ventilated buildings or

structures under construction, alteration or

repair.

Minimum Ventilation 

Opening Needed

GAU-GFH-CH-18K

0.54 ft.

2

501.7 cm

2

CARBON MONOXIDE POISONING MAY LEAD TO DEATH!

Not for use in 

residential living

areas or in  

non-adequately ventilated enclosed 

spaces. 

DANGER

DANGER

NEVER LEAVE HEATER UNATTENDED WHILE BURNING, CONNECTED TO A POWER 

SOURCE, OR WHILE CONNECTED TO A FUEL SOURCE

GAU-GFH-CH-18K

Larson Electronics, LLC

 

  Phone: (800) 369-6671 

 Fax: (903) 498-3364 

  www.larsonelectronics.com 

8

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Test Firing Heater

It is always a good idea to test fire your heater in a safe 

and controlled environment, in an area with adequate 

ventilation, and away from any combustibles to be sure 

that all functions of the heater and gas supply system 

are operating properly.
Leak test all gas connections with a 50/50 solution of 

dish soap and water. DO NOT use a flame to test for 

leaks!

Moving and Positioning the Heater

There is a brake in each of the front wheels of your 

heater that helps keep it in place when in use. To 

engage the brakes, push the lever down on each 

wheel. To move the heater, release the brakes, simply 

by flipping the levers on both brakes up.

Summary of Contents for GAU-GFH-CH-18K

Page 1: ...OR MAY CONTAIN VOLATILE OR AIRBORNE COMBUSTIBLES OR PRODUCTS SUCH AS GASOLINE SOLVENTS PAINT THINNERS DUST PARTICLES OR UNKNOWN CHEMICALS READ AND SAVE THESE INSTRUCTIONS Safety Information DANGER WA...

Page 2: ...construction alteration or repair Direct fired means that all of the combustion products of the heater enter the heated space This appliance is rated at 98 combustion efficiency but does produce small...

Page 3: ...ormation GAU GFH CH 18K ALWAYS install the heater so that it is not directly exposed to water spray rain dripping water or wind Use heater in accordance with all local codes and with CSA 5 90 U S 5th...

Page 4: ...sed without alteration Unpacking CAUTION NEVER LEAVE HEATER UNATTENDED WHILE BURNING CONNECTED TO A POWER SOURCE OR WHILE CONNECTED TO A FUEL SOURCE RISK OF FIRE ALWAYS LOCATE HEATER ON A STABLE AND L...

Page 5: ...NT Always use a propane LP cylinder that has a connection device that is compatible with the hose and regulator assembly supplied Remove the back cover by sliding the cove straight up and away from th...

Page 6: ...and upright Avoid tipping the LP cylinder on its side when connected to a regulator since this may cause damage to diaphragm in the regulator Handle valves with care Never connect an unregulated LP cy...

Page 7: ...iter button several times to ignite the center burner panel 6 Continue to hold valve knob down for 30 seconds after the panel has lit This will heat the thermocouple After 30 seconds release the valve...

Page 8: ...n adequately ventilated enclosed spaces DANGER DANGER NEVER LEAVE HEATER UNATTENDED WHILE BURNING CONNECTED TO A POWER SOURCE OR WHILE CONNECTED TO A FUEL SOURCE GAU GFH CH 18K Larson Electronics LLC...

Page 9: ...w air for ventilation and combustion Spiderwebs can also appear during periods of inactivity Be sure to inspect the heater before each use to look for any such obstructions Be sure to keep the air pas...

Page 10: ...or broken 3 Loose or disconnected igniter wire 4 Broken igniter wire 1 Properly position electrode 2 Replace the electrode 3 Tighten or reconnect loose wire 4 Replace igniter wire Heater stops runnin...

Page 11: ...1 2 3 Exploded View GAU GFH CH 18K Larson Electronics LLC Phone 800 369 6671 Fax 903 498 3364 www larsonelectronics com 11 of 11...

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