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OPERATING PRECAUTIONS
This is a propane, direct-fired, convection heater. It's intended use is primarily temporary heating of buildings
under construction, alteration or repair. Propane is heavier than air. If propane leaks from a connection or fitting,
it sinks to the floor, 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. Leak check new connections
or reconnection with a soap and water solution and follow all connection instructions herein. Also, ask your
propane dealer for advice on the propane application and supply installation and ask him to check it if there are
any questions. This heater was designed and certified for use as a construction heater in accordance with ANSI
Standard Z83.7/CGA 2.14- 2000. Check with your local fire safety authority if you have any questions about your
applications. Other standards govern the use of fuel gases and heat producing products in specific applications.
Your local authority can advise you about these. Direct-Fired means that all of the combustion products enter
the heated space. Even though this heater operates very close to 100 percent combustion efficiency, it still
produces small amounts of carbon monoxide. Carbon monoxide (called CO) is toxic. We can tolerate small
amounts but not a lot. CO can build up in a heated space and failure to provide adequate ventilation could
result in death. The symptoms of inadequate ventilation are:
• headache
• dizziness
• burning eyes and nose
So, be sure to follow advice about ventilation in these operating instructions. 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.
SAFETY PRECAUTIONS
1. Check the heater thoroughly for damage. DO NOT operate a damaged heater.
2. DO NOT modify the heater or operate a heater which has been modified from its original condition.
3. DO NOT light or operate heater unless the shells are fully extended and locked into position.
4. Use only propane gas.
5. Use only VAPOR WITHDRAWAL propane supply. If there is any question about vapor withdrawal, ask your
propane dealer.
6. Mount the propane cylinders vertically (shutoff valve up). Secure them from falling or being knocked over
and protect them from damage.
7. Locate propane containers at least (USA) 7 ft. (2.13m) from the heater and do not direct exhaust toward
containers.
8. IMPORTANT Use only the hose and regulator assembly provided with the heater. Match the color stripe on
the hang tag attached to the hose assembly with the color on the label located near the propane inlet
fitting on the heater. Inspect hose assembly before each use of the heater. If there is excessive abrasion or
wear, or hose is cut, replace with hose assembly listed on parts list before using heater.
9. For indoor use only. Area must be well ventilated. (Also see "Operating Precautions").
10. If at any time gas odor is detected, IMMEDIATELY DISCONTINUE operation until the source of gas has been
located and corrected.
11. Install the heater such that it is not directly exposed to water spray, rain and/or dripping water.
12. Maintain minimum clearance from normal combustible material (like paper).
13. Due to the high surface and exhaust temperatures, adults and children must observe clearances to avoid
burns or clothing ignition.
14. Operate only on a stable, level surface.
15. Do not use with duct work. Do not restrict inlet or exit.
16. Do not move, handle or service while hot or burning.
17. Use only in accordance with local codes or, in the absence of local codes, with the Standard for the Storage
and Handling of Liquefied Petroleum Gases ANSI/ NFPA 58 and CSA B149.1, Natural Gas and Propane
Installation Code.
General Information
MINIMUM CLEARANCE
From normal combustible material
Clearance
From sides
From top
Locate 10' from canvas or plastic tarpaulins or similar coverings and
secure them to prevent flapping or movement due to wind action.
• nausea
• dry mouth or sore throat
4 ft
6 ft
3
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