Never use gasoline, naphtha, paint thinners, alcohol, or other highly flammable fuels. Do not use heavy fuels such as No. 2 fuel oil or No. 2 Diesel. Using heavy fuels will result in: • clogged fuel filter and nozzle • carbon build up on spark plug • the need of non-toxic anti-icer in fuel during very cold weather IMPORTANT:Use a KEROSENE ONLY storage container. Be sure storage container is clean. Foreign matter such as rust, dirt, or water will cause the flame- out control to shut down heater.

PRODUCT IDENTIFICATION Hot Air Outlet Fan GuardLower Shell Air Filter End CoverFuel Tank Fuel Cap Side Cover Handle Power Cord Upper Shell Flame-Out Control Reset Button Figure 1 - 35/50/55/70,000 BTU/Hr Models Hot Air Outlet Lower Shell Side Cover Fuel Tank Fuel Cap Fan Guard Power CordFlame-Out Control Reset Upper Shell Button Figure 2 - 100/110/150,000 BTU/Hr Models 4 UNPACKING ASSEMBLY (For 100,000, 110,000, and 150,000 BTU/Hr Models Only) 1. Remove all packing items applied to heater for sh

Drain and flush fuel tank with clean kerosene. See Storage, page 8. Make sure electronic ignitor mounting is tight. Replace electronic ignitor. Press flame-out control reset button. Wait two minutes before trying to restart heater. If fan is hard to turn, see Pump Rotor, page 13. 9 10 099176 SERVICE PROCEDURES Air Output Filter Lint Filter Air Intake Filter Filter End Cover Air Output Filter Lint Filter Air Intake Filter Filter End Cover Fan Guard Figure 11 - Air Output, Air Intake, and Lint Fil

Unplug extension cord from outlet. To Restart Heater 1. Wait two minutes after stopping heater. 2. Repeat steps under To Start Heater, page 7. 1. Drain fuel tank. Note: Some models have drain plug on underside of fuel tank. If so, remove drain plug to drain all fuel. If heater does not have drain plug, drain fuel through fuel cap opening. Be sure all fuel is removed. 2. Replace drain plug if used. 3. Add one gallon of clean kerosene to fuel tank. 4. Attach fuel cap. 5. Move heater forwards and b

12.Adjust pump pressure (see page 11). Note:If rotor is still binding, proceed as follows. 13.Perform steps 1 through 6 (see page 13). 14.Place fine grade sandpaper (600 grit) on flat surface. Sand rotor lightly in “figure 8” motion four times (see Fig- ure 30). 15.Reinstall insert and rotor. 16.Perform steps 10 through 12 above. Blade Rotor .003"/.004" Gap Measured With Feeler Gauge Gap Adjusting Screw Gap Adjusting Screw Figure 29 - Gap Adjusting Screw Locations SPECIFICA TIONS Output Rating (

Decal13-17 M50820-02 Barb Fitting 1 (English, Black Shell) 1 13-18 M8643 Blade 4 100941-03 General Info. Decal14 M51114-01 Fan Guard 1 (Spanish, Black Shell) 1 15 M50631 Rubber Bumper 2 098234-50 General Info. Decal16 M12461-13 Screw, #8-32 x 1/4" 2 (English, Yellow Shell) 1 17 098138-02 Motor and Relay100941-06 General Info. Decal18 Bracket Asse098136-04 mbly Relay (motor start) 1 1 (Spanish, Yellow Shell) 1 **Not available as an assembly, order parts separately. 27 28 099623 1 2 3 4 5 7 8 9 10

Note: Rotate rotor one full turn to insure the gap is .003"/.004" (.076/.101 mm) at tightest position. Adjust if needed. 10. Install blades, pump plate, air filters, and filter end cover. 11. Replace fan guard and upper shell. 12. Adjust pump pressure (see page 14). Note: If rotor is still binding, proceed as follows. 13. Perform steps 1 thru 6 above. 14. Place fine grade sandpaper (600 grit) on flat surface. Sand rotor lightly in “figure 8” motion four times (see Figure 34). 15. Reinstall inser

Decal13-14 M12244-1 Output Filter 1 (English) 1 13-15 M12461-31 Screw, #10-32 x 1" 6 100941-09 General Info. Decal13-16 13-17 13-18 14 15 16 17 18 M11637 M50820-02 M8643 M51114-01 M50631 M12461-13 098138-02 098165-04 Lint Filter Barb Fitting Blade Fan Guard Rubber Bumper Screw, #8-32 x 1/4" Motor and Relay Bracket Assembly Relay (motor start) 1 1 4 1 2 2 1 1 (Spanish) 1 **Not available as an assembly, order parts separately. 25 26 102748 ILLUSTRATED PARTS BREAKDOWN 44 kW (150,000 Btu/Hr) 13-1 13

12. Attach burner head to combustion chamber. 13. Install spark plug in burner head. 14. Attach spark plug wire to spark plug. 15. Attach fuel and airline hoses to burner head. 16. Replace fan (see page 17). 17. Replace fan guard and upper shell. Combustion Chamber Burner Head Air Line Hose Fuel Line Hose Screw Spark Plug Wire Spark Plug Figure 23 - Removing Burner Head, 20,5/26,4 kW (70/90,000 Btu/Hr) Models Nozzle Face Nozzle Burner Head Nozzle Seal Fuel line FittingAir line Fitting Figure 24

6. Carefully remove nozzle from the nozzle adapter using 5/8" socket wrench. 7. Blow compressed air through face of nozzle. This will free any dirt in nozzle area. 8. Inspect nozzle seal for damage. 9. Replace nozzle into nozzle adapter until nozzle seats. Tighten 1/3 turn more using 5/8" socket wrench (4045 inch-pounds). 10.Attach nozzle assembly to burner strap. 11.Attach fuel and airline hoses to nozzle assembly. 12.Replace fan (see page 10). 13.Replace fan guard and upper shell. 45° Burner S