AIR FOR

WARNING ICONG 001WARNING

COMBUSTION

This heater shall not be installed in a confined space unless

provisions are provided for adequate combustion and ventilation

AND

air. Read the following instructions to insure proper fresh air for

VENTILATION

this and other fuel-burning appliances in your home.

 

 

Today’s homes are built more energy efficient than ever. New materials, increased

 

insulation, and new construction methods help reduce heat loss in homes. Home

 

owners weather strip and caulk around windows and doors to keep the cold air out

 

and the warm air in. During heating months, home owners want their homes as

 

airtight as possible.

 

While it is good to make your home energy efficient, your home needs to breathe.

 

Fresh air must enter your home. All fuel-burning appliances need fresh air for

 

proper combustion and ventilation.

 

Exhaust fans, fireplaces, clothes dryers, and fuel burning appliances draw air from

 

the house to operate. You must provide adequate fresh air for these appliances.

 

This will insure proper venting of vented fuel-burning appliances.

 

PROVIDING ADEQUATE VENTILATION

 

The following is excerpts from National Fuel Gas Code. NFPA 54/ANSI Z223.1,

 

Section 5.3, Air for Combustion and Ventilation.

 

All spaces in homes fall into one of the three following ventilation classifications:

 

1. Unusually Tight Construction; 2. Unconfined Space; 3. Confined Space.

 

The information on pages 5 through 8 will help you classify your space and provide

 

adequate ventilation.

 

Unusually Tight Construction

 

The air that leaks around doors and windows may provide enough fresh air for

 

combustion and ventilation. However, in buildings of unusually tight construction,

 

you must provide additional fresh air.

Unusually tight construction is defined as construction where:

a.walls and ceilings exposed to the outside atmosphere have a continu- ous water vapor retarder with a rating of one perm or less with open- ings gasketed or sealed and

b.weather stripping has been added on openable windows and doors and

c.caulking or sealants are applied to areas such as joints around window and door frames, between sole plates and floors, between wall-ceiling joints, between wall panels, at penetrations for plumbing, electrical, and gas lines, and at other openings.

If your home meets all of the three criteria above, you must provide addi- tional fresh air. See Ventilation Air From Outdoors, page 8.

If your home does not meet all of the three criteria above, continue reading.

Unconfined Space

The National Fuel Gas Code, ANSIZ223.1, 1992, Section 5.3 defines uncon- fined space as having a minimum air volume of 50 cubic feet (127 cubic cm) for each 1000 Btu/Hr input rating of all appliances in the space (cubic feet equals length x width x height of space). Include adjoining rooms only if there are doorless passageways or ventilation grills between the rooms.

Confined Space

The National Fuel Gas Code, ANSIZ223.1, 1992, Section 5.3 defines confined

 

space as having an air volume of less than 50 cubic feet (127 cubic cm) for each

 

1000 Btu/Hr input rating of all appliances in the space (cubic feet equals length

 

x width x height of space). Include adjoining rooms only if there are doorless

 

passageways or ventilation grills between the rooms.

Continued

5

 

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Desa CGN18RA, CGN30D installation manual AIR for Combustion, Providing Adequate Ventilation
Page 4 Page 6

CGN30D, CGN18RA specifications

Desa CGN18RA and CGN30D are two advanced space heaters designed for both residential and commercial use. These models are well-regarded for their innovative features, technologies, and exceptional performance, making them suitable choices for various heating needs, particularly in larger spaces.

The CGN18RA is equipped with several key features that enhance its functionality. It boasts a reliable heat output of approximately 18,000 BTUs, ensuring effective warmth during cold months. This model utilizes infrared technology, which enables it to heat objects and people directly rather than just the air. This not only makes the heating experience more comfortable but also reduces energy consumption. Furthermore, the CGN18RA is designed with an adjustable thermostat to provide precise temperature control, allowing users to set their desired warmth levels easily.

On the other hand, the CGN30D offers a more robust heating solution with an output of up to 30,000 BTUs. This model is particularly suited for larger spaces, effectively warming garages, workshops, or open-plan living areas. Like the CGN18RA, the CGN30D utilizes direct infrared heating technology, ensuring efficient and consistent temperatures are maintained. Users appreciate the dual-fuel capability of the CGN30D, allowing it to operate on both natural gas and propane, which adds to its versatility and convenience.

Both models prioritize safety, featuring built-in mechanisms such as tip-over shut-off systems and automatic shut-off valves to prevent potential hazards. Furthermore, the units are constructed with durable materials that withstand regular use while maintaining sleek designs. Portability is another advantage, with easy-to-move structures allowing users to reposition heaters according to their heating requirements.

In summary, Desa CGN18RA and CGN30D are impressive space heaters characterized by their powerful heating capabilities, energy efficiency, and user-friendly features. Their advanced technology, safety mechanisms, and versatility in fuel options make them outstanding choices for anyone looking to maintain a comfortable environment, whether at home or in a commercial space. With these models, users can enjoy reliable warmth and comfort during the colder months.
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