PROPANE/LP GAS HEATER

AIR FOR COMBUSTION AND VENTILATION

WARNING: This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate combustion and ven- tilation air. Read the following in- structions to insure 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 Heater Location, page 5.

Confined and Unconfined Space

The National Fuel Gas Code, ANS Z223.1 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 aggre- gate 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 installed*, through openings not furnished with doors, are con- sidered a part of the unconfined space.

This heater 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.

4

105563

Page 3 Page 5
Page 4
Image 4
Desa FB-2B AIR for Combustion and Ventilation, Providing Adequate Ventilation, Unusually Tight Construction
Page 3 Page 5

FB-2B specifications

The Desa FB-2B is an innovative and versatile piece of technology designed to cater to a wide range of applications, particularly in industries where performance, reliability, and efficiency are paramount. This ground-breaking product incorporates cutting-edge features and technologies that set it apart from its competitors.

One of the standout features of the Desa FB-2B is its robust construction, which ensures durability and longevity, even in demanding environments. This unit is built to withstand harsh conditions, making it an ideal choice for heavy-duty applications. The materials used in its manufacturing process have been carefully selected to guarantee resistance to wear and tear, as well as potential chemical exposure.

In terms of technology, the Desa FB-2B is equipped with advanced automation capabilities. This feature allows for seamless integration into existing systems, enabling users to operate it with minimal manual intervention. The automation technology enhances overall efficiency, as it reduces human error and optimizes performance.

Another significant aspect of the Desa FB-2B is its energy efficiency. The device has been engineered to consume minimal power while delivering maximum output. Its intelligent energy management system monitors usage and adjusts performance accordingly, ensuring that energy is used effectively without compromising on productivity.

The Desa FB-2B also boasts an intuitive user interface, making it accessible for operators of all skill levels. The user-friendly design facilitates quick adjustments and monitoring, enhancing overall operational effectiveness. Additionally, the interface is equipped with real-time data analytics, providing users with insights into performance metrics that could help drive further improvements.

Safety features are paramount in the design of the Desa FB-2B. It includes multiple fail-safes and alert systems to ensure that operators are informed of any potential issues before they escalate. This emphasis on safety contributes to a more secure working environment, making it suitable for applications where human interaction is a factor.

In summary, the Desa FB-2B is a remarkable piece of equipment that combines durability, advanced technology, energy efficiency, and user-friendly design. Its features make it an exceptional choice for industries that demand high-performance solutions, ensuring that users can rely on it for their operational needs. With its focus on safety and automation, the Desa FB-2B is truly a leader in its field.
Top Page Image Contents