OWNER’S MANUAL

AIR FOR

COMBUSTION AND

VENTILATION

Continued

DETERMINING FRESH-AIR FLOW FOR FIREPLACE LOCATION

Determining if You Have a Confined or Unconfined Space

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

Space: Includes the room in which you will install fireplace 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 22 ft. (length) x 18 ft. (width) x 8 ft. (ceiling height) = 3168 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: 3168 cu. ft. (volume of space) ÷ 50 cu. ft. = 63.3 or 63,300 (maximum Btu/Hr the space can support)

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

Vent-free fireplace

 

___________________ Btu/Hr

 

 

 

 

Gas water heater*

 

___________________ Btu/Hr

 

 

 

 

Gas furnace

 

___________________ Btu/Hr

Example:

 

 

 

Vented gas heater

 

___________________ Btu/Hr

Gas water heater

 

40,000

Btu/Hr

Gas fireplace logs

 

___________________ Btu/Hr

Vent-free fireplace

+

30,000

Btu/Hr

Other gas appliances*

+

___________________ Btu/Hr

Total

=

70,000

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: 63,300 Btu/Hr (maximum the space can support) 70,000 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 work sheet, 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 fireplace, 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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Desa VCGF30PR installation manual AIR for Combustion Ventilation, Determining FRESH-AIR Flow for Fireplace Location

VCGF30PR specifications

The Desa VCGF30PR is an advanced gas fireplace designed for both aesthetic appeal and functional efficiency. This model stands out in the market for its combination of modern technology, sleek design, and user-friendly features, making it an excellent choice for homeowners seeking an elegant heating solution.

One of the standout features of the VCGF30PR is its impressive heating capacity. Designed to warm spaces effectively, it can heat an area of around 1,200 square feet, making it ideal for living rooms, dens, and other large spaces in the home. The fireplace operates on natural gas or propane, providing flexibility depending on the homeowner's needs and preferences.

The unit boasts a stunning ceramic glass front, allowing for a clear view of the flames while minimizing heat loss. This design not only enhances the aesthetic appeal of the fireplace but also aids in energy efficiency. The use of advanced technology ensures that the flames are realistic and comforting, creating the perfect ambiance for any occasion.

One of the significant technological advancements in the VCGF30PR is its electronic ignition system. This feature enables quick and hassle-free startups with just the push of a button. The unit is also equipped with a built-in blower, which helps circulate warm air throughout the room, enhancing heating efficiency and comfort.

Safety is a priority with the Desa VCGF30PR. The fireplace includes a built-in safety shut-off valve that automatically cuts the gas supply in case of any irregularities, providing peace of mind for users. Additionally, it features a thermostat control, allowing homeowners to set their desired temperature for optimal comfort without constant monitoring.

The VCGF30PR also incorporates easy maintenance features. Its design allows for straightforward cleaning and upkeep, ensuring that it remains a captivating focal point in any home for years to come. The variety of finish options available—such as brushed nickel, black, or traditional bronze—allows homeowners to customize the look of their fireplace to match their interior décor.

In conclusion, the Desa VCGF30PR gas fireplace combines modern technology, safety features, and beautiful design elements, making it a remarkable addition to any home. With its efficient heating capabilities, user-friendly operation, and elegant appearance, it promises both comfort and style for years to come.