Desa FPVF33PR installation manual Determining AIR Flow for Fireplace Location

Page 7

AIR FOR COMBUSTION AND VENTILATION

Continued

DETERMINING 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

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 fireplace

+

28,000

Btu/Hr

Total

=

 

 

Btu/Hr

68,000

*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)

68,000

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 pro- vides an unconfined space, remove door to adjoining room or add ventilation grills between rooms. See Ventilation Air from Inside Building, page 8.

B.Vent room directly to the outdoors. See Ventilation Air from Outdoors, page 8.

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.

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Contents What to do if YOU Smell GAS OWNER’S Operation and Installation ManualContents Safety Information Safety Information Product Identification Product FeaturesLocal Codes UnpackingUnconfined Space AIR for Combustion and VentilationProviding Adequate Ventilation Unusually Tight ConstructionDetermining if You Have a Confined or Unconfined Space Determining AIR Flow for Fireplace LocationVentilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Check GAS Type InstallingElectrical Hookup Assembling Brass Trim Assembling and Attaching Brass TrimMinimum Wall and Ceiling Clearances see Figure Conventional Fireplace InstallationBreak off nailing flanges see with hammer or pliers BUILT-IN Fireplace Installation InstallingRough Opening for Installing in Corner Installing Mantel Clearances for Built-In Installation Installing GAS Piping to Fireplace LocationExternal Regulator with Vent Pointing Down Installation Items Needed Connecting Fireplace to GAS SupplyAttaching Flexible Gas Lines Together Checking GAS ConnectionsQQQQQQQQ¢ ¢¢¢¢¢¢¢,Q¢ Pressure Testing Fireplace Gas ConnectionsInstalling Logs Split Oak Design Models Installing Fireplace Screen Operating Fireplace For Your Safety Read Before LightingFireplace OperatingManually-Controlled Models Variable Control Operation Pilot Flame Pattern Inspecting BurnersCorrect Front Burner Flame Pattern Front Burner Flame PatternLogs Cleaning and Maintenance Trouble ShootingTurn off fireplace and let cool before cleaning ODS/PILOT and BurnersCleaning and Mainte Maintenance, Trouble ShootingBuilding If you smell gasShut off gas supply Do not try to light any applianceParts Under Warranty Technical Service Hints Replacement PartsParts Not Under Warranty Verify proper operation after servicing Wiring DiagramsAccessories GM200F Walnut Finished GM201U Unfinished ¢Q, ¢QQQQ,,,, ¢ ¢ ¢ ¢QIllustrated Parts Breakdown Log Base Assembly Variable Manually Controlled Models Parts ListThermostat Controlled Models Log Base Assembly Thermostat Controlled Models Illustrated VSGF28PV/CSGF28PV VSGF28PTA/CSGF28PTA 103280 103280 Keep this Warranty Warranty Information

FPVF33PR specifications

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