AIR FOR COMBUSTION AND VENTILATION

6

WARNING

WARNING ICON

G 001

This fireplace must have fresh air for proper operation. If not, poor fuel combustion could result. Read the following instructions 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 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. Fresh air enters the home through and around doors and windows. This may provide enough fresh air for combustion and ventilation. 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 the 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 6 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 com- bustion 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 additional fresh air. See Ventilation Air From Outdoors, page 8.

If your home does not meet all of the three criteria above, proceed to page 7.

Unconfined Space

An unconfined space has a minimum air volume of 50 cubic feet 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.

If the Btu per 50 cubic feet is less than 1000 Btu/Hr, then the fresh air will be provided by the natural air flow into the house.

Confined Space

A confined space has an air volume of less than 50 cubic feet 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.

101969

Page 5 Page 7
Page 6
Image 6
Desa UNVENTED (VENT-FREE) PROPANE GAS FIREPLACE AIR for Combustion and Ventilation, Providing Adequate Ventilation
Page 5 Page 7

UNVENTED (VENT-FREE) PROPANE GAS FIREPLACE specifications

Desa Unvented (Vent-Free) Propane Gas Fireplaces offer a unique and efficient way to provide warmth and ambiance to any living space, without the need for traditional venting systems. These fireplaces are designed to burn propane gas cleanly and efficiently, thus eliminating the need for chimneys or flues. One of the key features of the Desa Unvented propane gas fireplace is its ability to operate without exhausting combustion gases outside, making it an ideal choice for homeowners with limited installation options.

Equipped with advanced safety features, these fireplaces come with oxygen depletion sensors that automatically shut off the unit if oxygen levels in the room decrease to unsafe levels. This ensures peace of mind for users, as safety is a top priority when it comes to heating solutions.

Energy efficiency is another significant aspect of the Desa Unvented propane gas fireplace. These units convert almost all of the fuel they burn into usable heat, which translates into lower energy bills and a smaller carbon footprint. The fireplaces also have adjustable flame settings, allowing users to customize their heating needs according to the room's size and desired warmth.

Aesthetic appeal is paramount in any home heating solution, and Desa offers a variety of styles and designs to suit different interior decors. Whether you prefer a classic look with ceramic logs and glowing embers or a contemporary clean-burning design, there is a model to meet your preferences. With remote control options available, users can easily adjust the heat and flame settings from the comfort of their couch.

Installation is hassle-free, as these units do not require complex venting. This flexibility allows homeowners to place the fireplace in various locations, ensuring that any room can benefit from the charm and warmth of a gas fire. With the additional option to incorporate a wall-mounted thermostat, users can maximize efficiency while maintaining the ideal room temperature.

In summary, the Desa Unvented propane gas fireplace combines safety, efficiency, and style, making it an attractive option for those looking to enhance their home environment. Its innovative technology and user-friendly features set it apart as a reliable and aesthetically pleasing heating solution.
Top Page Image Contents