Astria ValiantOD42P3 Handbuch für Installation und Betrieb - Seite 6

Blättern Sie online oder laden Sie pdf Handbuch für Installation und Betrieb für Außenkamin Astria ValiantOD42P3 herunter. Astria ValiantOD42P3 20 Seiten. Outdoor vent-free firebox

Seite drucken

WARNING: This heater shall not be installed in a

room or space unless the required volume of indoor

combustion air is provided by the method described

in the National Fuel Gas Code, ANSI Z223.1/NFPA 54,

the International Fuel Gas Code, or applicable local

codes. Read the following instructions to insure proper

fresh air for this and other fuel-burning appliances in

your home.

Today's homes are built more energy efficient than ever. New materi-

als, increased insulation and new construction methods help reduce

heat loss in homes. Home owners weather strip and caulk around

windows and doors to keep cold air out and warm air in. During heat-

ing months, home owners want their homes as airtight as possible.

While it is good to make your home energy efficient, your home needs

to breathe. Fresh air must enter your home. All fuel-burning appliances

need fresh air for proper combustion and ventilation.

Exhaust fans, fireboxes, clothes dryers and fuel burning appliances

draw air from the house to operate. You must provide adequate fresh

air for these appliances. This will insure proper venting of vented

fuel-burning appliances.

PROVIDING ADEQUATE VENTILATION

The following are excerpts from National Fuel Gas Code, ANSI Z223.1/

NFPA 54, Air for Combustion and Ventilation.

All spaces in homes fall into one of the three following ventilation

classifications:

1. Unusually Tight Construction

2. Unconfined Space

3. Confined Space

Information on page 7 through 9 will help you classify your space

and provide adequate ventilation.

Unusually Tight Construction

Air that leaks around doors and windows may provide enough fresh

air for combustion and ventilation. However, in buildings of unusually

tight construction, you must provide additional fresh air.

Unusually tight construction is defined as construction where:

a. walls and ceilings exposed to outside atmosphere have a con-

tinuous water vapor retarder with a rating of one perm (6 x 10

kg per pa-sec-m

) or less with openings gasketed or sealed and

b. weather stripping has been added on openable windows and

doors and

c. caulking or sealants are applied to areas such as joints around

window and door frames, between sole plates and floors, be-

tween wall-ceiling joints, between wall panels, at penetrations

for plumbing, electrical and gas lines and at other openings.

If your home meets all three criteria above, you must provide

additional fresh air. See Ventilation Air From Outdoors, page 7.

If your home does not meet all three criteria above, proceed to

Determining Fresh-Air Flow for Firebox Location.

AIR FOR COMBUSTION AND VENTILATION

Confined and Unconfined Space

The National Fuel Gas Code, ANSI Z223.1/NFPA 54 defines a confined

space as a space whose volume is less than 50 cubic feet per 1,000

Btu per hour (4.8 m

pliances installed in that space and an unconfined space as a space

whose volume is not less than 50 cubic feet per 1,000 Btu per hour

(4.8 m

in that space. Rooms communicating directly with the space in which

the appliances are installed*, through openings not furnished with

doors, are considered a part of the unconfined space.

* Adjoining rooms are communicating only if there are doorless

passageways or ventilation grills between them.

DETERMINING FRESH-AIR FLOW FOR HEATER 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 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).

2. Multiply the space volume by 20 to determine the maximum Btu/

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

-11

Astria.US.com

per kw) of the aggregate input rating of all ap-

per kw) of the aggregate input rating of all appliances installed

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.

Hr the space can support.

_____ (volume of space) x 20 = (Maximum Btu/Hr the space can

support)

Example: 3168 cu. ft. (volume of space) x 20 = 63,360 (maximum

Btu/Hr the space can support)

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

* Do not include direct-vent gas appliances. Direct-vent draws

combustion air from the outdoors and vents to the outdoors.

Example:

Gas water heater

40,000 Btu/Hr

Vent-free heater + 39,000 Btu/Hr

Total

= 79,000 Btu/Hr

126773-01B