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SuperiorFireplaces.US.com

126700-01B

8

AIR FOR COMBUSTION AND VENTILATION

Unusually tight construction is defi ned  as 
construction where:
a.  walls and ceilings exposed to the outside 

atmosphere have a continuous water 
vapor retarder with a rating of one perm 
(6 x 10

-11

 kg per pa-sec-m

2

) 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 fl oors, 
between wall-ceiling joints, between 
wall panels, at penetrations for plumb-
ing, electrical and gas lines and at other 
openings.

If your home meets all of the three criteria 
above, you must provide additional fresh air. 
See Ventilation Air From Outdoors
Page 10
If your home does not meet all of the three 
criteria above, proceed to Determining Fresh-
Air Flow For Firebox Location
.

Confi ned and Unconfi ned Space
The National Fuel Gas Code, ANSI Z223.1/ 
NFPA54 

allows two methods for determining 

whether the space in which the heater is being 
installed is confi ned or unconfi ned  space. The 
standard method

 

defi nes a confi ned space as a 

space whose volume is less than 50 cubic feet 
per 1,000 Btu per hour (4.8 m

3

 per kw) of the ag-

gregate input rating of all appliances installed in 
that space and an unconfi ned space as a space 
whose volume is not less than 50 cubic feet per 
1,000 Btu per hour (4.8 m

3

 per kw) of the ag-

gregate input rating of all appliances installed 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 unconfi ned space.
Where the air infi ltration rate of a structure is 
known, the Known Air Infi ltration Rate Method 
may be used. Follow The National Fuel Gas 
Code, ANSI Z223.1/NFPA 54 to use this 
method to determine if the space is confi ned 
or unconfi ned.
* 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 Confi ned or 
Unconfi ned Space Using the Standard 
Method

Today’s homes are built more energy effi cient 
than ever. New materials, increased insulation 
and new construction methods help reduce heat 
loss in homes. Homeowners apply weather strip 
and caulk around windows and doors to keep 
the cold air out and the warm air in. During heat-
ing months, homeowners want their homes as 
airtight as possible.
While it is good to make your home energy 
effi cient, your home needs to breathe. Fresh 
air must enter your home. All fuel-burning ap-
pliances need fresh air for proper combustion 
and ventilation.
Exhaust fans, some fi replaces, clothes dryers 
and some fuel-burning appliances draw air from 
the house to operate. You must provide adequate 
fresh air for these appliances. This will ensure 
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 Com-
bustion and Ventilation

.

All spaces in homes fall into one of the three 
following ventilation classifi cations:
1. Unusually 

Tight 

Construction

2. Unconfi ned Space
3. Confi ned Space
The information on 

Pages 8 through 10

 will help 

you classify your space and provide adequate 
ventilation.

Unusually Tight Construction

The 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.

 WARNING: This heater shall not 

be installed in a room or space un-
less 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 ensure proper fresh air for this 
and other fuel-burning appliances 
in your home.

Содержание VRT4536

Страница 1: ...ury death or property damage Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS Do not try to light any appli...

Страница 2: ...shock and carbon monoxide poisoning DANGER Carbon monoxide poisoning may lead to death WARNING Donotallowfans to blow directly into the firebox Avoidanydraftsthatalterburner flame patterns Ceiling fan...

Страница 3: ...ing furniture polish wax carpet cleaner or similar products turn heater off If heated the vapors from these prod ucts may create a white powder residue within burner box or on adjacent walls and furni...

Страница 4: ...uel Gas Code ANSI Z223 1 NFPA 54 National Fuel Gas Code latest edition Firebox must be electrically grounded in accordance with the National Electrical Code ANSI NFPA 70 latest edition Available from...

Страница 5: ...UCT SPECIFICATIONS 36 MODELS Figure 1 36 Models VRT4536WS and VRT4536WH Picture may vary from actual fireplace 30 1 2 29 30 11 1 8 54 1 2 7 7 8 7 36 45 1 8 33 8 91 2 50 363 8 7 3 8 111 8 3 3 4 4 7 8 3...

Страница 6: ...CIFICATIONS Continued 42 MODELS Figure 2 42 Models VRT4542WS and VRT4542WH Picture may vary from actual fireplace 4 7 8 54 1 2 7 7 8 7 36 3 8 50 42 51 1 8 32 3 8 3 3 4 30 3 8 8 3 4 13 3 3 8 9 1 2 30 1...

Страница 7: ...PECIFICATIONS Continued 50 MODELS Figure 3 50 Models VRT4550WS and VRT4550WH Picture may vary from actual fireplace 363 8 50 8 3 4 13 33 8 91 2 59 1 8 50 7 7 8 7 30 54 1 2 11 1 8 32 3 8 3 3 4 38 3 8 4...

Страница 8: ...termine if the space is confined or unconfined Adjoining rooms are communicating only if there are doorless passageways or ventilation grills between them DETERMINING FRESH AIR FLOW FOR HEATER LOCATIO...

Страница 9: ...he 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 63 360 Btu Hr maximum the space can support...

Страница 10: ...d ser vice person must install firebox Follow all local codes CAUTION Log heaters in stalled in this firebox create warmaircurrents Thesecurrents move heat to wall surfaces next to firebox Installing...

Страница 11: ...ustible material and protrudes 3 1 2 from the wall This com bustible material must be 4 from the side of the fireplace cabinet see Figure 4 B Clearances from the top of the firebox opening to the ceil...

Страница 12: ...ions in Figure 9 for rough opening 2 Install gas piping to firebox location See Gas Line Installation on Page 16 and Con necting to Gas Supply in log set owner s manual WARNING Do not allow any combus...

Страница 13: ...t mantel against a wall in your home The firebox and cabinet mantel can be installed directly on the floor Mantels may be avail able from your retailer or custom built for your home 1 Assemble cabinet...

Страница 14: ...NEL PANEL RIGHT BRICK REAR BRICK PANEL BOTTOM BRICK PANEL ASH PANEL UPPER CORNER BRACKET 2x 3 Install rear refractory panel This panel has a top and bottom To determine which is which match up the pat...

Страница 15: ...of fireplace and pull out insula tion from gas line conduit sleeve Save insulation for reuse Replace screws 3 Run a 1 2 black iron gas line into fireplace through the rear at gas line conduit sleeve...

Страница 16: ...If you wish to install an unvented vent free gas log set only unvented gas log sets which have been found to comply with the standard for unvented room heaters ANSI Z21 11 2 are to be installed in thi...

Страница 17: ...Outside Air Kit Collar Hood 3 Flex for Floor Venting Cat No F1094 Model AK4B 50 piece Bulk Outside Air Kit Collar Only Kit OPTIONAL OUTSIDE AIR KIT FOR SIDEWALL INSTALLATION Cat No F1091 Model AK4 4 A...

Страница 18: ...10 11 13 14 15 16 14 3 22 20 21 20 1 19 5 14 15 16 13 12 11 9 7 6 8 17 2 12 18 4 Cat No Model Interior F0277 VRT4536WS White Stack F0278 VRT4536WH White Herr F0279 VRT4542WS White Stack F0280 VRT4542...

Страница 19: ...irebox Top 1 20 J4342 Screen 36 2 J4341 Screen 42 2 J4340 Screen 50 2 F3235 Screen 36 Stainless 2 F3236 Screen 42 Stainless 2 F3237 Screen 50 Stainless 2 21 J6928 Screen Rod 36 2 J4391 Screen Rod 42 2...

Страница 20: ...Picture may vary from actual 1 2 5 3 4 6 6 IMPORTANT Installation of brick panels should be done after the fireplace is placed in a permanent location WARNING LIFTING HAZARD SINGLE PERSON LIFT COULD C...

Страница 21: ...tural White 1 Right Stacked 42 Natural White 1 Right Herringbone 42 Natural White 1 Right Stacked 50 Natural White 1 Right Herringbone 50 Natural White 1 4 Left Stacked 36 Natural White 1 Left Herring...

Страница 22: ..._________________________________________________ ______________________________________________________ ______________________________________________________ ________________________________________...

Страница 23: ...ural or propane gas only Burning conventional fuels such as wood coal or any other solid fuel will cause damage to the Product will produce excessive temperatures and could result in a re hazard c dam...

Страница 24: ...istributor for fireplace code information Printed in U S A 2014 Innovative Hearth Products P N 126700 01 Rev B 01 2017 1508 Elm Hill Pike Suite 108 Nashville TN 37210 SuperiorFireplaces US com Record...

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