AIR for Combustion and Ventilation

VENTED NATURAL GAS LOGS

WARNING: This appliance shall not be installed in a con- fined space or unusually tight construction unless provisions are provided for adequate com- bustion and ventilation air. Read the following instructions to in- sure 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 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 Appli- ance 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 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 in- stalled*, through openings not furnished with doors, are considered a part of the unconfined space.

This log set 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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PCVDR24 RGA specifications

Desa PCVDR24 RGA is a cutting-edge device designed to enhance temperature management in residential and commercial spaces. This innovative product stands out in the market thanks to its advanced technology and user-friendly features.

At its core, the PCVDR24 RGA offers precise temperature control, allowing users to maintain their desired comfort levels efficiently. It uses a highly responsive digital thermostat, which ensures accurate readings and minimal temperature fluctuations. This feature not only contributes to user comfort but also promotes energy efficiency, as the system avoids unnecessary heating or cooling cycles.

One of the key features of the Desa PCVDR24 RGA is its robust construction. Designed for durability, this unit is built to withstand varying environmental conditions, making it suitable for both indoor and outdoor applications. The materials used in its construction resist rust and corrosion, ensuring a long lifespan even in harsh climates.

The PCVDR24 RGA also employs advanced airflow technology, which facilitates even distribution of heated or cooled air. This ensures that every corner of the room reaches the desired temperature without hot or cold spots, significantly enhancing comfort levels for occupants.

Furthermore, the device is equipped with programmable settings, allowing users to tailor temperature schedules based on their daily routines. This smart feature not only enhances user convenience but also contributes to energy savings, as homeowners and business operators can adjust the heating and cooling cycles to operate according to their specific needs.

Additionally, the Desa PCVDR24 RGA comes with a built-in safety mechanism designed to prevent overheating. This greatly reduces the risk of potential accidents, ensuring a safe environment for all users.

In terms of energy efficiency, the PCVDR24 RGA is designed to meet rigorous industry standards, making it an environmentally friendly choice. Users can expect a reduction in energy bills due to its efficient operation, which is increasingly important in today’s eco-conscious society.

In summary, the Desa PCVDR24 RGA combines advanced technology, robust construction, and user-friendly features to provide a reliable solution for temperature management. Its precise control, even airflow distribution, programmable settings, and safety features make it an attractive option for anyone looking to improve comfort and energy efficiency in their space.