Desa owner manual Fuels, Theory Of Operation, Ventilation, R 15 E UK PORTABLE FORCED AIR HEATER

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R 15 E UK

PORTABLE FORCED AIR HEATER

FUELS

WARNING: Use only kerosene or No. 1 fuel oil to avoid risk of fire or explosion. Never use gaso- line, naphtha, paint thinners, al- cohol 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

THEORY OF

OPERATION

The Fuel System: The air pump forces air through the air line. The air is then pushed through the burner head nozzle. This air causes fuel to lift from the tank. A fine mist of fuel is sprayed into the combustion chamber.

The Air System: The motor turns the fan. The fan pushes air into and around the combustion chamber. This air is heated and provides a stream of clean, hot air.

The Ignition System: The electronic ignitor sends voltage to the spark plug. The spark plug ignites the fuel and air mixture.

The Flame-Out Control System: This system causes the heater to shut down if the flame goes out.

•	carbon build up on spark plug
•	use of non-toxic anti-icer in fuel during
	very cold weather

IMPORTANT: Use a KEROSENE ONLY 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. Foreign matter may also re- quire you to clean fuel system often.

VENTILATION

WARNING: Follow the mini- mum fresh, outside air ventila- tion requirements. If proper fresh, outside air ventilation is not pro- vided, carbon monoxide poison- ing can occur. Provide proper fresh, outside air ventilation be- fore running heater.

Combustion		Motor	Air Pump
	Spark Burner	Fan	Intake
Chamber
	Plug Head		Air Filter
Clean			Cool
			Air
Heated
			In
Air Out

Output

Air

Filter

Fuel	Nozzle	Fuel	Air line	Electronic
Tank		Filter	To Burner	Ignitor
	Air For Fuel		Air For	Fuel
	System		Combustion
			And Heating

Figure 2 - Cross Section Operational View

Provide a fresh air opening of at least 2800 square cm (three square feet) for each 100,000 Btu/Hr rating. Provide extra fresh air if more heaters are being used.

This 50,000 Btu/Hr heater requires one of the following:

•a two-car garage door (16 feet wide open- ing) raised 3.2 cm (1 1/4 inches)

•a single-car garage door (9 feet wide opening) raised 5.1 cm (2 inches)

•two, 76 cm (thirty-inch) windows raised

9.6cm (3 3/4 inches)

4 104975