AIR for Combustion Ventilation | Desa CGG2618N, CGG3630N manual

OWNER’S MANUAL

AIR FOR

COMBUSTION AND

VENTILATION

Continued

DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION

Determining if You Have a Confined or Unconfined Space

Use this worksheet to determine if you have a confined or unconfined space.

Space: Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms.

1.Determine the volume of the space (length x width x height). Length x Width x Height = cu. ft. (volume of space)

Example: Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) = 2560 cu. ft. (volume of space)

If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these rooms to the total volume of the space.

2.Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space can support.

_________________ (volume of space) ÷ 50 cu. ft. = (Maximum Btu/Hr the space can support)

Example: 2560 cu. ft. (volume of space) ÷ 50 cu. ft. = 51.2 or 51,200 (maximum Btu/Hr the space can support)

3.Add the Btu/Hr of all fuel burning appliances in the space.

Vent-free heater		___________________ Btu/Hr
Gas water heater*		___________________ Btu/Hr	Example:		40,000
Gas furnace		___________________ Btu/Hr	Gas water heater			Btu/Hr
					33,000
Vented gas heater		___________________ Btu/Hr	Vent-free heater +			Btu/Hr
					73,000
Gas fireplace logs		___________________ Btu/Hr	Total	=		Btu/Hr

Other gas appliances* +		___________________ Btu/Hr
Total	=	___________________ Btu/Hr

*Do not include direct-vent gas appliances. Direct-vent draws combustion air from the outdoors and vents to the outdoors.

4.Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.

_________________ Btu/Hr (maximum the space can support)

_________________ Btu/Hr (actual amount of Btu/Hr used)

Example: 51,200 Btu/Hr (maximum the space can support) 73,000 Btu/Hr (actual amount of Btu/Hr used)

The space in the above example is a confined space because the actual Btu/Hr used is more than the maximum Btu/Hr the space can support. You must provide additional fresh air. Your options are as follows:

A.Rework worksheet, adding the space of an adjoining room. If the extra space provides an unconfined space, remove door to adjoin- ing room or add ventilation grills between rooms. See Ventilation Air From Inside Building, page 6.

B.Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 6.

C.Install a lower Btu/Hr heater, if lower Btu/Hr size makes room unconfined.

If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an unconfined space. You will need no additional fresh air ventilation.

WARNING: If the area in which the heater may be operated is smaller than that defined as an unconfined space or if the building is of unusually tight construction, provide adequate combustion and ventilation air by one of the methods described in the National Fuel Gas Code, ANS Z223.1, 1992, Section 5.3 or applicable local codes.

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CGG2618N, CGG3324N(T), CGG3630N specifications

Desa CGG3324N(T), CGG3630N, and CGG2618N are three notable models in the realm of commercial and residential gas heating solutions, each bringing unique characteristics and technologies to meet diverse user needs.

The Desa CGG3324N(T) is a powerful option designed for larger spaces. One of its main features is its ability to provide a robust heating output of up to 33,000 BTUs, making it ideal for environments that require consistent warmth during colder months. This model is equipped with an adjustable thermostat, allowing users to set their desired temperature for maximum comfort.

Innovatively, the CGG3324N(T) employs a radiant heat technology that warms objects within the room rather than just the air. This results in a more efficient distribution of warmth and reduced energy costs. Additionally, the model is built with safety in mind, featuring an automatic shut-off valve that activates in case of irregular operation.

Moving on to the Desa CGG3630N, this model is renowned for its oversized heating capacity, reaching up to 36,000 BTUs. It is particularly suited for commercial applications or larger homes. One standout characteristic of the CGG3630N is its dual fuel capability, which allows it to operate using both natural gas and propane. This versatility makes it an appealing choice for users looking to transition between fuel sources based on availability and pricing.

The advanced technology in the CGG3630N includes a multi-burner system that enhances its efficiency by uniformly distributing heat across the space. Furthermore, its contemporary design blends seamlessly with various interior aesthetics, making it a stylish addition to any environment.

Lastly, the Desa CGG2618N is an efficient compact model with a heating capacity of 26,000 BTUs. This model is perfect for both residential and smaller commercial spaces. Its key feature includes an electronic ignition system that makes startup effortless and reliable, reducing the hassle often associated with traditional igniters.

What sets the CGG2618N apart is its user-friendly interface and ease of installation, allowing users to set it up without professional help in many cases. It also boasts a sleek design that requires minimal space while still delivering substantial heating power.

In summary, the Desa CGG3324N(T), CGG3630N, and CGG2618N each provide unique features and technologies tailored to various heating needs. With an emphasis on efficiency, safety, and user engagement, these models stand out in the competitive landscape of gas heating solutions.

Desa CGG2618N AIR for Combustion Ventilation, Determining FRESH-AIR Flow for Heater Location

Models: CGG2618N CGG3324N(T) CGG3630N