5
INSTALLATION
The Sure Flame Model S1505 is a direct fired gas heater intended to be used primarily for the tem-
porary heating of building under construction, alteration, or repair. Since all the products of com-
bustion are released into the area being heated, it is imperative that adequate ventilation is provid-
ed. The flow of supply air and combustion gases must not be obstructed in any way.
1. The heater is designed for indoor or outdoor installation in a horizontal position. Allow the
following clearances from any combustible material or fuel containers.
Front Outlet:
20 feet
Sides:
2 feet
Intake:
2 feet
Top:
4 feet
Front outlet must not be directed at any LP-Gas container within 20 feet.
Also make sure that no flammable vapors are present in the space where the heater is being used.
2. When connecting the heater to a natural gas or propane supply line ensure that the pressure at
the heater inlet is within specified range. Please refer to Propane and Natural Gas installation
sections on Page 7. Excessive pressure (over 1/2” psig) will damage the controls and void the
warranty.
3. Visually inspect the hose assembly and ensure that it is protected from traffic, building materials,
and contact with hot surfaces. If it is evident that there is excessive abrasion or wear, or the hose
is cut, it must be replaced.
4. After installation, check the hose assembly for gas leaks by applying a water and soap solution to
each connection.
5. Connect the heater to an adequate 115 volt electrical supply and in compliance with the
National Electrical Code ANSI/NFPA 7.0. For protection against shock hazard the supply cord
should be plugged directly into a properly grounded three-prong receptacle.
6. In all applications install the heater in such manner it is not directly exposed to water spray, rain
and or dripping water.
EXTENSION CORDS:
Properly Wired and Grounded
Use #14 wire up to 100’
Use #12 wire up to 200’
Use #10 wire up to 300’
