Instructions / Assembly
Caring for Your Heater 
Care – 19 
How To Care For Your Heater 
WARNING: Danger of bodily injury or death. Turn 
off electric power supply at  the disconnect switch, 
fuse  box  or  service  panel  before  removing  any 
doors or access or service panels from the unit. 
CABINET FINISH 
Clean the cabinet with a damp rag. Never use abrasive cleaners. 
Cabinets are finished in heat resistant powder coated finish - DO 
NOT refinish with wall paint. 
REMOVABLE CABINET TOP (350, 500, & 650 MODEL SERIES) 
For ease of cleaning, access or replacement of internal parts, the 
top of this heater can be removed by following these steps: 
1.  Remove  the  three  (3)  brackets  on  the  rear  of  the  heater 
securing the cabinet top to the back plate. 
2.  Pull the cabinet top forward and lift up.  Reinstall the cabinet 
top by reversing the procedures noted above. (Figure 19). 
Note: Take special care to engage the six (6) clips located on the 
bottom of the cabinet top into the top flange of the heater sides. 
HEATER AREA 
Keep  the  area  near  the  heater  clear  and  free  from  combustible 
materials, gasoline and other flammable liquids and vapors. 
COMBUSTION AND VENTILATION AIR 
The combustion and ventilation air supply must not be blocked. 
Do not put anything in or on the heater cabinet. 
For  better  circulation  and  more effective heating,  do not  place 
obstructions, furniture or other  items closer  than four  feet to  the 
front of the cabinet or two feet from each side of the cabinet. 
ANNUAL UPKEEP NEEDED 
It is recommended that  a qualified service technician  perform 
these checks at the beginning of each heating season. 
CLEANING BLOWER (IF EQUIPPED) 
Shut off electricity. Clean any lint or dirt from fan blades, fan motor 
and exposed air passages.  Annually put two drops of SAE 20 oil 
in each of the two cups or oil tubes. 
PILOT BURNER 
Light  the  pilot  using  the  instructions  in  OPERATING  YOUR 
HEATER. Leave the thermostat at the lowest setting. 
The pilot flame should surround 1/2 to 5/8 inches of the generator 
tip. If the flame needs adjusting, do it as follows: 
ADJUST PILOT BURNER 
1.  Insert  a small  screwdriver, adjust the  flame as  needed. Turn 
the screw counterclockwise to increase the flame, clockwise to 
decrease. 
2.  Turn the thermostat to the highest setting. The main burners 
should  light  quickly  and  smoothly. Turn  the  thermostat  to  its 
lowest  setting. Main  burners should go out. The  pilot  should 
remain lit. 
3.  Refer to Figure 20. 
VENTING SYSTEM 
Make sure that no parts of the vent air system are blocked, rusted 
or damaged. Clean or replace before using the heater. 
BURNER CLEANING 
Check  the  burner.  If  cleaning  is  required,  contact  a  qualified 
service technician to clean and service burner. 
FIGURE 19  Removable Cabinet Top 
FIGURE 20  Pilot Adjustment Screw 










