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 in- sure proper fresh air for this and other fuel-burning appli- ances 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 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 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 out- side atmosphere have a continuous water vapor retarder with a rating of one perm (6x10-11 kg 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 ar- eas such as joints around window and door frames, between sole plates and floors, between wall-ceiling joints, be- tween 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 7.

If your home does not meet all of the three criteria above, proceed to Determining 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 vol- ume 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 un- confined 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 ap- pliances installed in that space. Rooms communi- cating directly with the space in which the appli- ances are installed*, through openings not fur- nished with doors, are considered a part of the unconfined space.

*Adjoining rooms are communicating only if there are doorless passageways or ventilation grills be- tween them.

113680-01A

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Desa 10542 installation manual AIR for Combustion Ventilation, Providing Adequate Ventilation, Unusually Tight Construction
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10542 specifications

Desa 10542 is a distinctive and innovative community that stands out for its commitment to sustainability and modern living. This urban development exemplifies contemporary design while incorporating green technologies that cater to environmentally conscious residents.

One of the main features of Desa 10542 is its focus on creating a vibrant, inclusive community. The layout of the neighborhood promotes accessibility and connectivity, with wide pedestrian pathways, cycling lanes, and communal spaces designed for social interaction. Parks and green spaces are strategically placed throughout the area, providing residents with lush environments that encourage outdoor activities and foster a sense of community.

In terms of technology, Desa 10542 is at the forefront of smart city initiatives. The integration of smart sensors and IoT devices throughout the community allows for efficient management of resources, such as energy and water. These technologies enable real-time monitoring and analytics, helping to optimize consumption and reduce waste. Homes in Desa 10542 are equipped with smart home systems, allowing residents to control lighting, heating, and security systems remotely via smartphones, enhancing both convenience and safety.

Another characteristic that enhances the appeal of Desa 10542 is its commitment to renewable energy. The community incorporates solar panels on residential rooftops and utilizes wind energy where feasible. This focus on renewable sources not only reduces the carbon footprint of the community but also helps residents save on energy costs.

Desa 10542 also prides itself on its sustainable water management practices. Rainwater harvesting systems and gray water recycling are implemented to minimize water waste, highlighting the community's dedication to resource conservation.

Moreover, the urban design of Desa 10542 includes mixed-use developments that combine residential, commercial, and recreational spaces. This approach creates a dynamic environment where residents can live, work, and play without needing to travel far from home.

In summary, Desa 10542 represents a forward-thinking community that harmoniously blends modern technology with sustainable practices. Its focus on environmental consciousness, smart living, and community connectivity makes it a model for future urban developments, proving that a balance between modernity and nature is not only possible but also desirable.
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