UNVENTED (VENT-FREE) FIREBOX

LOCATING

FIREBOX

PLANNING

Plan where you will install the firebox. This will save time and money later when you install the firebox. Before installation, con- sider the following:

1.Where the firebox will be located. Al- low for wall and ceiling clearances (see Installation Clearances, page 7).

2.Everything needed to complete instal- lation.

3.These models CANNOT be installed in a bedroom or bathroom.

4.Proper air for combustion and ventila- tion (see below).

AIR FOR

COMBUSTION AND VENTILATION

WARNING: This firebox shall

not be installed in a confined space or unusually tight construction unless provisions are provided foradequate combustion and ven- tilation air. Reed 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 effi- cient 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 most enter your home. All fuel-burning

appliances need fresh air for proper com- bustion and ventilation.

Exhaust fans, fireboxes, 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 _re 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 defined as construction where:

a.walls and ceilings exposed to the outside atmosphere have a continuous water vapor retarder with a rating of one perm (6x10"11kg per pa-sec-m=)or less with openings gasketed or sealed and

b.weather stripping has been

added on opeaable windows and doors and

c.caulldng 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- tionsfor plumbing, electrical,and gas lines, and at other openings.

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

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

Confined and Unconfined Space

The National Fuel Gas Code (ANS Z2123.1, 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 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 communicating directly with the space in which the appliances are installed*, through openings not furnished with doors, are considered a part of the unconfined space.

This firebox 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 Tech CGFB32NC, CGFB32C Locating Firebox, AIR for Combustion and Ventilation, Planning, Providing Adequate Ventilation
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CGFB32C, CGFB32NC specifications

Desa Tech has established a reputation for delivering innovative heating solutions, and their CGFB32NC and CGFB32C models are no exceptions. These gas-fired blue flame heaters are designed with user convenience, efficiency, and safety in mind, making them ideal options for both indoor and outdoor use.

One of the main features of the CGFB32NC and CGFB32C is their ability to produce consistent and reliable heat output. These models utilize a blue flame technology, which operates by pulling in air from the surrounding environment and heating it before circulating it throughout the space. This process not only enhances energy efficiency but also ensures that the heat distribution is even, providing a comfortable living or working atmosphere.

In terms of specifications, both models are equipped with variable heat settings, allowing users to customize the temperature according to their specific needs. The CGFB32NC and CGFB32C are also capable of heating spaces up to 1,000 square feet, making them suitable for garages, workshops, and large living areas. Their portability adds to their versatility, as they can easily be transported from one location to another.

Safety is paramount in any heating device, and Desa Tech has incorporated multiple safety features into these models. The CGFB32NC and CGFB32C come with an automatic shut-off valve that activates in case of an accidental tip-over or if the heater overheats, ensuring peace of mind for users. Additionally, both models are certified by the relevant safety standards, assuring consumers of their reliability and secure operation.

Another standout characteristic of these heaters is their straightforward operation. They feature an easy-to-use ignition system, allowing for quick startups without the need for complicated setups. Both models are also designed to run quietly, making them suitable for use in environments where noise levels need to be kept to a minimum.

Durability is a key consideration for any heating appliance, and Desa Tech has focused on quality materials and construction in the CGFB32NC and CGFB32C. These heaters are built to withstand the rigors of daily use, ensuring longevity and providing good value for investment.

Overall, the Desa Tech CGFB32NC and CGFB32C gas-fired blue flame heaters stand out for their efficiency, safety, and user-friendly features. Whether it's for home, garage, or workshop heating needs, these models deliver reliable performance and comfort, making them an excellent choice for countless applications.
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