PRODUCT FEATURES

OPERATION

This heater is clean burning. It requires no outside venting. There is no heat loss out a vent or up a chimney. Heat is generated by both realistic flames and glowing coals. This heater is designed for vent- free operation with flue damper closed. It has been tested and approved to ANSI Z21.11.2 standard for unvented heaters. State and local codes in some areas prohibit the use of vent-free heaters. This heater may also be operated as a vented decorative (ANSI Z21.60) product by opening the flue damper (Remote-Ready Models Only).

SAFETY DEVICE

This heater has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS/pilot is a required feature for vent- free room heaters. The ODS/pilot shuts off the heater if there is not enough fresh air.

PIEZO IGNITION SYSTEM

This heater has a piezo ignitor. This system requires no matches, batteries, or other sources to light heater.

AIR FOR COMBUSTION AND VENTILATION

WARNING: This heater shall not be installed in a confined space or unusually tight construction un- less provisions are provided for adequate combus- tion and ventilation air. Read the following instruc- tions to insure proper fresh air for this and other fuel- burning appliances in your home.

Today’s homes are built more energy efficient than ever. New mate- rials, 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.

PRODUCT FEATURES

5

Operation

Safety Device

 

Piezo Ignition System

 

AIR FOR COMBUSTION AND VENTILATION

 

Providing Adequate Ventilation

 

 

 

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 following 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 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 (6 x 10-11kg per pa-sec-m2) or less with openings gasketed or sealed and

b.weather stripping has been added on openable win- dows 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 7.

If your home does not meet all of the three criteria above, proceed to Determining Fresh-Air Flow For Heater Loca- tion, page 6.

Confined 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 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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110021-01A

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Desa VRL30PT, VRL24NT, CTB3924PT, CSG3924NT, VRL24PT, VRL30NT Product Features, AIR for Combustion and Ventilation
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VRL30NT, VRL24PT, CSG3924NT, VRL30PT, VRL24NT specifications

Desa VRL24NR, VRL24PR, VRL30NR, VRL30PR, CSG3924NR, CSG3924PR, CTB3924NR, CTB3924PR, VRL24NT, VRL24PT, VRL30NT, VRL30PT, CSG3924NT, CSG3924PT, CTB3924NT, and CTB3924PT are a series of innovative heating solutions that cater to various residential and commercial needs. These models are designed to provide efficient, reliable, and aesthetically pleasing heating options.

One of the key features across these models is their advanced heating technology. They utilize cutting-edge infrared heating systems that ensure consistent and effective warmth. This technology not only heats up spaces quickly but also provides energy savings compared to traditional heating methods. Additionally, many models are equipped with programmable thermostats allowing users to set their desired temperature and schedule, enhancing convenience and energy efficiency.

Another hallmark of these models is their versatility in installation. The options for both vent-free and vented designs provide flexibility for various environments. Users can choose vented models for additional safety and air quality control, or opt for vent-free units that are easier to install in areas without existing ventilation systems. The range of configurations helps accommodate different space sizes and heating requirements.

In terms of design, the Desa heating solutions are crafted with aesthetics in mind. Many models feature sleek exteriors and elegant finishes, making them suitable for integration into modern or traditional interior designs. This commitment to design ensures that users do not have to sacrifice style for functionality.

Durability and reliability are emphasized throughout the line. Constructed with high-quality materials, these models are built to withstand the test of time and can function effectively under varying environmental conditions. Users can have peace of mind with warranties and support from the manufacturer.

Safety is another crucial aspect of these heating solutions. Each model is designed with safety features like automatic shut-off systems, making them safe for family use even in occupied living spaces.

In summary, the Desa VRL and CSG series offers a broad selection of heating solutions characterized by advanced infrared technology, versatile installation options, stylish designs, and robust safety measures. Whether for residential or commercial purposes, these models are engineered to meet diverse heating needs efficiently and reliably.
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