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1. Remove all packing items applied to heater

for shipment. Keep plastic cover caps

attached to inlet connector and hose /

regulator assembly for storage.

2. Remove all items from carton

3. Check all items for shipping damage. If the

heater is damaged, promptly inform dealer

where you purchased the heater.

The Propane (LP) 

gas pressure

regulator and 

hose assembly supplied with the heater 

must be used 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 

LEVEL SURFACE!

WARNING

GAU-GFH-CH-18K

Specifications subject to change without notice.

Features

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Model #

MH-18-PCH-A

BTU

6,600 / 12,000 / 18,000

Fuel Consumption (Lbs./hr)

0.31 / 0.56 / 0.83

Heat Settings

3

Maximum Operating Hours

65 / 36 / 24

Required Cylinder Lbs.

20

Fuel Type

Propane

Heating Area (Ft.

2

)

165 / 300 / 450

Larson Electronics, LLC

 

  Phone: (800) 369-6671 

 Fax: (903) 498-3364 

  www.larsonelectronics.com 

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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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