AIR for Combustion Ventilation | Desa VN2000BTD, VN2800BTD manual

OWNER’S MANUAL

AIR FOR

COMBUSTION AND

VENTILATION

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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:
Gas furnace	___________________ Btu/Hr	Gas water heater		40,000	Btu/Hr
Vented gas heater	___________________ Btu/Hr	Vent-free heater	+	20,000	Btu/Hr
Gas fireplace logs	___________________ Btu/Hr	Vent-free heater	+	20,000	Btu/Hr
Gas fireplace logs	___________________ Btu/Hr	Total	=	60,000	Btu/Hr
Other gas appliances* + ___________________ Btu/Hr		Total	=	60,000	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) 60,000 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, Section 5.3 or applicable local codes.

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104402

VN2000BTD, VN2800BTD specifications

The Desa VN2800BTD and VN2000BTD are two advanced space heaters that represent the pinnacle of technology and design in the heating industry. Both models are engineered for efficiency, ensuring warmth and comfort in various settings, from homes to workshops.

One of the primary features of the VN2800BTD and VN2000BTD is their versatility in application. They are ideal for supplemental heating, capable of warming up rooms quickly and effectively with an easy-to-use design. The VN2800BTD boasts an output of 28,000 BTUs, while the VN2000BTD offers a slightly lower but still robust output of 20,000 BTUs. This makes them suitable for a diverse range of spaces and heating needs.

A key characteristic of these models is their advanced technology, which includes a forced air heating mechanism. This system allows heated air to circulate rapidly throughout the room, providing even warmth without the cold spots often found in traditional heaters. Both units are fueled by propane, making them highly efficient and eco-friendly compared to electric options.

Safety is another significant aspect of the Desa VN2800BTD and VN2000BTD. These models are equipped with automatic shut-off features that activate in case of a malfunction or if the heater tips over. Additionally, they have built-in oxygen depletion sensors that monitor air quality, ensuring safe operation in enclosed spaces. This focus on user safety reflects Desa's commitment to providing reliable heating solutions.

The design of the VN2800BTD and VN2000BTD is pragmatic and attractive, allowing them to blend seamlessly into any environment. They come with a durable construction that ensures longevity, even under demanding conditions. Portability is another benefit; both models often feature handles or wheels that make it easy to transport them from one area to another, enhancing their utility.

Easy ignition systems are another highlight, with many units incorporating a piezo ignition feature that allows for quick and reliable starts. This user-friendly approach minimizes the hassle often associated with traditional heating methods.

In summary, the Desa VN2800BTD and VN2000BTD heaters are exemplary products that combine powerful heating capabilities with safety and user convenience. Their advanced technology and thoughtful features make them an outstanding choice for anyone looking to enhance their comfort through effective space heating solutions.