HIGH PRESSURE PORTABLE FORCED AIR HEATER 350,000 AND 600,000 BTU/HR

THEORY OF

FUELSVENTILATION

OPERATION

The Fuel System: The motor turns the fuel pump. The fuel pump pulls fuel from the fuel tank. The fuel pump pushes fuel through a filter and a solenoid valve and out the burner head nozzle. 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 ig- nitor 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. It also allows the fan to continue running after normal shutdown of heater. This cools the combustion chamber.

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

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 flame-out control to shut down heater. Foreign matter may also re- quire you to clean fuel system often.

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.

Fresh Air Opening

Requirements

 

Square Feet

Heater Size

Opening

350,000 Btu/Hr

10.5

600,000 Btu/Hr

18.0

Note: If you use more than one heater, provide extra fresh air. Provide a fresh air opening of at least three square feet for each 100,000 Btu/Hr rating.

 

 

 

Solenoid

Fuel Pump/

Combustion

 

 

Fuel Filter

 

 

Valve

Chamber

Spark

Burner

Motor

 

Plug

Head

Fan

 

 

 

 

 

 

 

 

Clean

 

 

 

 

Heated

 

 

 

 

Air Out

 

 

 

Cool

 

 

 

 

Air In

Fuel

Pickup

Line

Fuel Tank

Nozzle

Fuel Line To

Electronic Ignitor

Fuel

Solenoid Valve

Filter

 

 

 

Air for Combustion

Fuel

and Heating

 

Figure 3 - Cross Section Operational View

 

4

099507

Page 4
Image 4
Desa B600D, B350D owner manual Theory Fuelsventilation Operation, Fresh Air Opening Requirements

B350D, B600D specifications

The Desa B350D and B600D are two cutting-edge heating appliances designed to meet modern demands for efficiency, performance, and user convenience. These models, known for their reliable heating capabilities, incorporate advanced technologies that enhance both functionality and comfort in various environments.

The Desa B350D is a mid-range option that is ideal for smaller spaces. It boasts a compact design that allows it to fit seamlessly into any room, while still delivering substantial heating power. The B350D features an adjustable thermostat, which gives users complete control over their heating needs. With a maximum output of 35,000 BTUs, it can effectively heat areas up to approximately 1,200 square feet. The unit is equipped with an innovative multi-fuel system that allows it to operate on natural gas, propane, or liquid fuel, providing versatility and convenience to users.

On the other hand, the Desa B600D is a more powerful option, designed for larger spaces requiring higher heating capacities. With an output capacity of 60,000 BTUs, it efficiently warms areas up to 2,000 square feet, making it a perfect choice for workshops, garages, or large living spaces. Just like its smaller counterpart, the B600D features a user-friendly adjustable thermostat for personalized comfort.

Both models integrate safety features such as a tilt switch, which automatically shuts off the unit if it is tipped over, ensuring peace of mind when in use. Additionally, these units are designed with a durable exterior that is built to withstand the rigors of frequent usage.

Energy efficiency is a critical consideration in today's eco-conscious market, and the Desa B350D and B600D deliver on this front as well. Both models feature an efficient burner system that maximizes fuel utilization, reducing overall consumption and lowering heating costs.

In terms of maintenance, both models are designed for easy access to components, allowing users to perform routine checks and maintenance without hassle. The user manuals provide clear instructions, ensuring that even those with minimal technical expertise can keep their units in optimal working condition.

In summary, the Desa B350D and B600D stand out in the heating appliance market for their powerful performance, versatile fuel options, and user-friendly features. Whether for residential or commercial applications, these models represent a reliable choice for those seeking efficient and effective heating solutions.