AIR FOR

WARNING ICONG 001WARNING

COMBUSTION

This heater shall not be installed in a confined space unless

AND

provisions are provided for adequate combustion and ventilation

air. Read the following instructions to insure proper fresh air for

VENTILATION

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. 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 is excerpts from 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 5 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

 

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 6x10-11per 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 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 addi- tional fresh air. See Ventilation Air From Outdoors, page 8.

If your home does not meet all of the three criteria above, proceed to page 6.

Confined and Unconfined Space

The National Fuel Gas Code (ANSIZ2123.1, 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 installed*, through openings not furnished with doors, are consid- ered a part of the unconfined space.

* Adjoining rooms are communicating only if there are doorless passageways or ventilation grills between them.

Continued 5

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Desa VN2800BTC, VN2000BTC installation manual AIR for Combustion, Providing Adequate Ventilation
Page 4 Page 6

VN2000BTC, VN2800BTC specifications

Desa VN2800BTC and VN2000BTC are advanced outdoor heating solutions that cater to the growing demand for efficient, reliable, and eco-friendly heating systems. These models have captured the attention of homeowners and outdoor enthusiasts alike, thanks to their innovative features and cutting-edge technologies.

One of the standout characteristics of both the VN2800BTC and VN2000BTC is their impressive heating capacity. Designed to provide warmth in various outdoor settings, they are ideal for patios, gardens, and other outdoor spaces. With a powerful heating output, these units can instantly raise the ambient temperature, making them perfect for chilly evenings or seasonal gatherings.

Both models incorporate advanced flame technology that enhances the visual appeal of the heater while ensuring effective heat distribution. The flames are visually captivating, creating a cozy atmosphere that adds to the outdoor experience. This technology not only provides warmth but also serves as a stunning focal point for gatherings.

The build quality of the Desa VN2800BTC and VN2000BTC models is another aspect that sets them apart. Constructed from durable, weather-resistant materials, these heaters are designed to withstand various outdoor conditions, including wind, rain, and snow. This durability ensures that they will last for many seasons, offering reliable performance year after year.

In terms of safety features, both models come equipped with automatic shut-off valves and safety flame failure devices. These mechanisms ensure that the heaters operate safely, turning off automatically if the flame is extinguished or if the unit tips over. This attention to safety makes them suitable for use in family settings and around children.

The VN2800BTC and VN2000BTC models also feature user-friendly controls, allowing for easy temperature adjustments and operation without requiring technical expertise. These intuitive controls make it simple for anyone to enjoy the benefits of outdoor heating.

Energy efficiency is another critical feature of these heaters. They are designed to optimize fuel consumption, delivering maximum warmth while minimizing operating costs. This efficiency not only benefits the user's wallet but also contributes to a more sustainable heating approach.

In summary, the Desa VN2800BTC and VN2000BTC heaters combine advanced features, durable construction, and safety technology to deliver exceptional outdoor heating solutions. Their striking design, efficient heating capabilities, and user-friendly operation make them excellent choices for anyone looking to enhance their outdoor living space. With these models, enjoyment of outdoor areas can extend well into the cooler months, allowing for year-round entertainment and leisure.
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