AIR FOR COMBUSTION

AND VENTILATION

WARNING: This firebox shall not be installed in a confined space or unusually tight construc- tion unless provisions are provid- ed for adequate combustion and ventilation air. Read the following instructions to insure proper fresh air for this and other fuel-burning appliances in your home.

Todayʼs 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, fireboxes, 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 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 combustion and ventila- tion. However, in buildings of unusually tight con- struction, 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 (6x10-11kg 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 8.

If your home does not meet all of the three criteria above, proceed to Determin- ing Fresh-Air Flow For Firebox Location, page 7.

Confined Space and Unconfined Space The National Fuel Gas Code ANSI Z223.1/NFPA 54 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 com- municating 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.

6

www.desatech.com

105604-01H

Page 5 Page 7
Page 6
Image 6
Vanguard Heating NLFB32C AIR for Combustion Ventilation, Providing Adequate Ventilation, Unusually Tight Construction
Page 5 Page 7

NLFB32NC, NLFB32C, FB32CA, FB32NCA specifications

The Vanguard Heating NLFB32NC, FB32NCA, FB32CA, and NLFB32C are modern, innovative heating systems crafted to meet the demands of contemporary living spaces. These models emphasize efficiency, reliability, and advanced technology, making them a popular choice for both residential and commercial applications.

One of the standout features of the Vanguard Heating line is its energy efficiency. Designed with cutting-edge technology, these heating units boast optimized heating performance while minimizing energy consumption. With a high energy efficiency rating, they help users reduce their carbon footprint and lower utility bills, providing a substantial return on investment over the years.

These models incorporate advanced heating technologies, including variable speed fans, which adjust according to the heating needs of the space. This feature not only enhances comfort by maintaining a consistent temperature but also reduces noise levels, allowing for a peaceful environment. The intuitive control systems enable users to easily adjust settings, ensuring that their heating preferences are met at all times.

Constructed with durable materials, the Vanguard Heating models are designed to withstand the rigors of daily use. Their robust build quality ensures longevity and reduces the need for frequent maintenance. Additionally, the compact design of these systems allows for flexible installation, making them suitable for a variety of settings, whether in tight spaces or larger areas.

Moreover, the NLFB32NC and its counterparts are equipped with safety features that prioritize user protection. Overheat protection and automatic shut-off mechanisms are standard, ensuring that the units operate safely and efficiently. These heating systems also come with easy-to-read digital displays, enabling users to monitor performance and troubleshoot any issues quickly.

The Vanguard Heating series is also designed with environmental considerations in mind. They comply with stringent environmental standards, contributing to a greener future. The use of sustainable materials in production further reflects Vanguard's commitment to eco-friendly practices.

In summary, the Vanguard Heating NLFB32NC, FB32NCA, FB32CA, and NLFB32C offer a comprehensive heating solution characterized by energy efficiency, advanced heating technologies, durability, and safety features. Their innovative designs cater to a wide range of heating needs, making them an excellent choice for anyone seeking reliable, high-performance heating solutions. By choosing Vanguard Heating, users benefit from enhanced comfort, cost savings, and a reduced environmental impact.
Top Page Image Contents