AIR FOR COMBUSTION

AND VENTILATION

WARNING: This heater shall not be installed in a confined space or unusually tight con- struction unless provisions are provided for adequate combus- tion and ventilation air. Read the following instructions to insure proper fresh air for this and other fuel-burning appliances in your home.

Todayʼs 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 effi- cient, 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 are excerpts from National Fuel

Gas Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation.

All spaces in homes fall into one of the three fol- lowing ventilation classifications:

1.Unusually Tight Construction

2.Unconfined Space

3.Confined Space

The information on pages 5 through 7 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 out- side atmosphere have a continuous water vapor retarder with a rating of one perm (6 x 10-11kg per pa-sec-m2) or less with openings 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 these three cri- teria, you must provide additional fresh air. See Ventilation Air From Outdoors, page 7.

If your home does not meet all of the three criteria above, proceed to Determin- ing Fresh-Air Flow For Heater Location, page 6.

Confined and Unconfined Space

The National Fuel Gas Code, ANSI Z223.1/NFPA 54 defines a confined space as a space whose volume is less than 50 cubic feet per 1,000 Btu per hour (4.8 m3 per kw) of the aggregate input rating of all appliances installed in that space and an unconfined space as a space whose volume is not less than 50 cubic feet per 1,000 Btu per hour (4.8 m3 per kw) of the aggregate input rating of all appliances installed in that space. Rooms com- municating directly with the space in which the appliances are installed*, through openings not furnished with doors, are considered a part of the unconfined space.

*Adjoining rooms are communicating only if there are doorless passageways or ventilation grills between them.

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Desa GWP10 GWN10T AIR for Combustion Ventilation, Providing Adequate Ventilation, Unusually Tight Construction
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GWP10 GWN10T specifications

The Desa GWP10 and GWN10T are innovative heating solutions designed for both residential and commercial applications. These models stand out in the market due to their modern features, advanced technologies, and exceptional performance characteristics.

One of the main features of the Desa GWP10 is its high efficiency. With an impressive energy efficiency rating, this model utilizes a state-of-the-art combustion system that maximizes heat output while minimizing fuel consumption. This not only reduces the cost of operation but also makes it an environmentally friendly choice, lowering carbon emissions significantly.

The GWN10T model complements the GWP10 with its advanced technology. It incorporates a sophisticated control system that allows for precise temperature regulation. Users can easily adjust the settings via a user-friendly interface, ensuring optimal comfort throughout the space it heats. The control system can also include smart functionalities, enabling remote access and monitoring through mobile applications. This level of connectivity gives users unparalleled control over their heating solutions.

Another characteristic that sets both models apart is their build quality. Designed to endure harsh conditions, the Desa GWP10 and GWN10T feature durable materials and robust construction. This ensures longevity and reliability, making them suitable for long-term use in various environments. Additionally, both models come with enhanced safety features, including automatic shut-off mechanisms and overheat protection, providing peace of mind to users.

Moreover, ease of installation is a key aspect of the Desa heating solutions. The GWP10 and GWN10T are designed to be easily integrated into existing heating systems or as standalone units. The compact designs allow for versatile placement, making them ideal for different room layouts and building configurations.

In summary, the Desa GWP10 and GWN10T are sophisticated heating systems that combine efficiency, advanced technologies, and robust design. With high energy efficiency ratings, smart control options, and a focus on safety and reliability, these models cater to the modern consumer's needs for comfort and convenience in heating solutions. Whether for residential or commercial use, the Desa GWP10 and GWN10T are excellent choices for anyone seeking effective and innovative heating technology.
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