AIR for Combustion and Ventilation

Continued

DETERMINING 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
Gas furnace			___________________ BTU/Hr
Vented gas heater		___________________ BTU/Hr
Gas fireplace logs		___________________ BTU/Hr
Other gas appliances*	+ ___________________ BTU/Hr
Total	= ___________________ BTU/Hr
Example: Gas water heater		40,000		BTU/Hr
Vent-free heater	+	16,000		BTU/Hr
Total	=			BTU/Hr
			56,000

*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)
58,000	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 adjoining room or add ventilation grills between rooms. See Ventilation Air From Inside Building, page 7.

B.Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 8.

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.

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CGP26D, CGP16RA specifications

Desa CGP26D and CGP16RA are powerful and efficient products in the world of portable heating and cooling solutions, catering to various consumer needs. Known for their reliability and user-friendly features, these models have established a solid reputation among users looking for competent climate control.

The CGP26D model stands out for its energy efficiency and advanced heating capabilities. It is designed with a high-performance combustion chamber that maximizes heat output while minimizing fuel consumption. This model utilizes a state-of-the-art thermostat, providing users with precise temperature control to ensure optimal comfort. The CGP26D's compact design makes it an ideal choice for both residential and commercial spaces, allowing users to effectively heat areas without taking up much room. Its portability is further enhanced by the integrated handle and lightweight construction, making it easy to move from one location to another.

In terms of safety features, the CGP26D is equipped with a robust safety shut-off mechanism that activates in case of overheating or accidental tipping, providing peace of mind for users. With a range of heat settings, users can customize the output to suit their specific needs, making it a versatile option for various applications.

On the other hand, the CGP16RA model offers similar benefits but is more focused on cooling solutions. This model incorporates advanced refrigerant technology that facilitates rapid cooling, making it suitable for use in hotter climates. Its energy-efficient compressor operates quietly, ensuring that users can enjoy a cool environment without disruptive noise. The CGP16RA also features multiple cooling modes, allowing users to select the most comfortable setting for their preferences.

Both models come with user-friendly control panels, enabling effortless adjustments and quick access to settings. Energy efficiency is a hallmark of both the CGP26D and CGP16RA, as they are designed to reduce environmental impact while maximizing user comfort. With a blend of modern technology and practical design, these models are perfect for anyone looking to manage indoor climates effectively and sustainably.

In summary, the Desa CGP26D and CGP16RA are impressive products that provide robust heating and cooling solutions, respectively. Their advanced features, energy efficiency, and safety mechanisms make them desirable choices for consumers seeking reliability and convenience in climate control technology. Whether you need to warm up a chilly room or cool down in the summer heat, these Desa models offer the performance and versatility to meet your needs.

Desa CGP16RA, CGP26D AIR for Combustion and Ventilation, Determining AIR Flow for Heater Location

Models: CGP26D CGP16RA