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	+		20,000	Btu/Hr
Total	=	60,000		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 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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VP2800BTC, VP2000BTC specifications

Vanguard Heating has made notable strides in the heating solutions market with its cutting-edge models, the VP2000BTC and VP2800BTC. These units cater to both residential and commercial needs, providing users with efficient heating capabilities under various conditions.

The VP2000BTC is designed with a powerful 2000-watt output, making it suitable for smaller spaces or specific zones within larger environments. It boasts a sleek, modern design that allows for easy integration into any setting, whether it’s a living room, office, or workshop. One of its key features is the advanced thermostat control, which enables precise temperature regulation. This not only enhances user comfort but also contributes to energy efficiency by ensuring that the heating system operates only when necessary.

On the other hand, the VP2800BTC steps up the power to an impressive 2800 watts, making it ideal for larger spaces requiring a more robust heating solution. This model incorporates a multi-functional control panel that allows the user to set timers and customize heating schedules. By doing so, users can optimize their energy consumption, leading to cost savings over time.

Both units utilize infrared heating technology, which offers several advantages over traditional heating methods. Infrared heating warms objects and surfaces directly rather than heating the air, resulting in quicker and more efficient warmth. This technology minimizes heat loss, ensuring that energy is used effectively and providing immediate comfort.

Another noteworthy characteristic of the VP2000BTC and VP2800BTC is their emphasis on safety. Each model comes equipped with overheat protection and a tip-over switch, which provides peace of mind, especially in households with children or pets. Additionally, their lightweight design allows for easy transport and repositioning, making them versatile solutions for various applications.

In summary, the Vanguard Heating VP2000BTC and VP2800BTC are excellent choices for those seeking effective and efficient heating solutions. With their advanced features, precision control, and infrared technology, they stand out as practical options for enhancing comfort in any environment.