UNVENTED NATURAL GAS LOG HEATER

AIR FOR COMBUSTION AND VENTILATION

WARNING: This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate combustion and ven- tilation air. Read the following in- structions to insure proper fresh air for this and other fuel-burning appliances in your home.

Today’s homes are built more energy efficient than ever. New materials, increased insula- tion, and new construction methods help re- duceheatlossinhomes.Homeownersweather 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 com- bustion and ventilation.

Exhaust fans, fireplaces, clothes dryers, and fuel burning appliances draw air from the house to operate. You must provide ad- equate 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. NFPA 54/ANS Z223.1, Sec- tion 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 4 through 6 will help you classify your space and provide adequate ventilation.

Unusually Tight Construction

The air that leaks around doors and win- dows 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 de- fined as construction where:

a.walls and ceilings exposed to the outside atmosphere have a con- tinuous water vapor retarder with a rating of one perm (6x10-11kg per pa-sec-m2) 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, be- tween sole plates and floors, be- tween wall-ceiling joints, be- tween wall panels, at penetra- tions for plumbing, electrical, and gas lines, and at other openings.

If your home meets all of the three criteria above, you must provide ad- ditional fresh air. See Ventilation Air From Outdoors, page 6.

If your home does not meet all of the three criteria above, proceed to De- termining Fresh-Air Flow For Heater Location, page 5.

Confined and Unconfined Space

The National Fuel Gas Code (ANS Z223.1, 1992 Section 5.3) 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 unconfining 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 communicating directly with the space in which the appliances are in- stalled*, through openings not furnished with doors, are considered a part of the unconfined space.

This heater shall not be installed in a con- fined space or unusually tight construction unless provisions are provided for adequate combustion and ventilation air.

*Adjoining rooms are communicating only if there are doorless passageways or ventila- tion grills between them.

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Desa CGG3324N(T) AIR for Combustion and Ventilation, Providing Adequate Ventilation, Unusually Tight Construction
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CGG2618N, CGG3324N(T), CGG3630N specifications

Desa CGG3324N(T), CGG3630N, and CGG2618N are three notable models in the realm of commercial and residential gas heating solutions, each bringing unique characteristics and technologies to meet diverse user needs.

The Desa CGG3324N(T) is a powerful option designed for larger spaces. One of its main features is its ability to provide a robust heating output of up to 33,000 BTUs, making it ideal for environments that require consistent warmth during colder months. This model is equipped with an adjustable thermostat, allowing users to set their desired temperature for maximum comfort.

Innovatively, the CGG3324N(T) employs a radiant heat technology that warms objects within the room rather than just the air. This results in a more efficient distribution of warmth and reduced energy costs. Additionally, the model is built with safety in mind, featuring an automatic shut-off valve that activates in case of irregular operation.

Moving on to the Desa CGG3630N, this model is renowned for its oversized heating capacity, reaching up to 36,000 BTUs. It is particularly suited for commercial applications or larger homes. One standout characteristic of the CGG3630N is its dual fuel capability, which allows it to operate using both natural gas and propane. This versatility makes it an appealing choice for users looking to transition between fuel sources based on availability and pricing.

The advanced technology in the CGG3630N includes a multi-burner system that enhances its efficiency by uniformly distributing heat across the space. Furthermore, its contemporary design blends seamlessly with various interior aesthetics, making it a stylish addition to any environment.

Lastly, the Desa CGG2618N is an efficient compact model with a heating capacity of 26,000 BTUs. This model is perfect for both residential and smaller commercial spaces. Its key feature includes an electronic ignition system that makes startup effortless and reliable, reducing the hassle often associated with traditional igniters.

What sets the CGG2618N apart is its user-friendly interface and ease of installation, allowing users to set it up without professional help in many cases. It also boasts a sleek design that requires minimal space while still delivering substantial heating power.

In summary, the Desa CGG3324N(T), CGG3630N, and CGG2618N each provide unique features and technologies tailored to various heating needs. With an emphasis on efficiency, safety, and user engagement, these models stand out in the competitive landscape of gas heating solutions.
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