AIR FOR COMBUSTION AND VENTILATION CONTINUED

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 6 through 10 will help you classify your space and provide ad- equate 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 (6x10-11kg 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 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 10.

If your home does not meet all of the three criteria above, proceed to page 8.

Confined Space and Unconfined Space

The National Fuel Gas Code (ANSI 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 (4.8m3 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 (4.8m3 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.

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

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United States Stove 2020L installation manual Providing adequate ventilation, Unusually Tight Construction
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2020L specifications

The United States Stove Company has a long-standing history of providing quality heating solutions, and the 2020L model continues that tradition. The 2020L is a versatile wood-burning stove, designed to deliver efficient heating while enhancing the aesthetic appeal of any space.

One of the main features of the 2020L is its impressive heating capacity. It can effectively warm spaces of up to 2,000 square feet, making it an ideal choice for larger living areas or homes in colder climates. The stove boasts a high-efficiency rating, which means it maximizes fuel use while minimizing waste. This allows users to enjoy longer burn times and a more consistent heat output.

The 2020L integrates advanced technologies to enhance its performance. A notable feature is the secondary combustion system, which significantly increases efficiency by burning off gases and particulates that would otherwise escape through the flue. This not only contributes to reduced emissions but also improves the overall heat output of the stove. Additionally, the stove employs a durable cast iron construction, ensuring longevity and resilience against the rigors of daily use.

Another characteristic that sets the 2020L apart is its user-friendly design. The large glass door provides an expansive view of the fire, adding a cozy ambiance to any room. The air wash system keeps the glass clean for unobstructed views, enhancing the visual appeal while reducing maintenance needs. The adjustable dampers offer precise control over airflow, allowing users to customize the burn rate and heat level according to their preferences.

Moreover, the 2020L is designed with safety in mind. It features a built-in heat shield that helps to protect surrounding walls from excessive heat, allowing for more flexible installation options. The stove also meets stringent EPA guidelines, ensuring it's an environmentally responsible choice for homeowners seeking to reduce their carbon footprint.

In summary, the United States Stove 2020L wood-burning stove is a powerful, efficient, and aesthetically pleasing option for heating large spaces. Its combination of advanced technologies, ease of use, and safety features positions it as a reliable choice for anyone looking to invest in a quality heating solution. Whether for supplemental heat or as the primary source, the 2020L brings both functionality and beauty to the heart of your home.
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