Assessments - 3, GPA: 3.3
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Mantel Depth Ref. Mantel from Top of Louver Opening 1 14" A 16" 2 12" B 14" 3 10" C 12" 4 8" D 10" 5 6" E 8" 6 4" F 6" 7 2" G 4" 411/4" (36") 481/4" (42") 21" Hor. Vent 241/2" Vert. Vent 36" 23" Hor. Vent 26 1/2" Vert. Vent 42" Figure 4 - Framing Clearances for Installation Against an Exterior Wall Figure 6 - Clearances for Combustible Mantels Location of Termination Cap FixedClosedOpenableFixedClosedVVVVVVVVXXVXGGJFBBKNHIANELDBMACBVVAGGBTERMINATION CAPAIR SUPPLY INLETGAS METERRESTRICTED AREA(TERMINATION PROHIBITED) A = clearance above grade, veranda, porch, deck, or balcony [*12" (30.5 cm) minimum] B = clearance to window or door that may be opened [6" (15 cm) min. for 10,000 Btu or less; 9" (23 cm) in US if between 10,000 and 50,000, 12" (30 cm) in Canada if between 10,000 and 100,000; 12" (30 cm) in US if greater than 50,000, 36" (91 cm) in Canada if greater than 100,000] C = clearance to permanently closed window [minimum 12" (30.5 cm) recommended to prevent condensation on window] D = vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 24" (61 cm) from the center-line of the terminal [18" (45.7 cm) minimum] E = clearance to unventilated soffit [12" (30.5 cm) minimum] F = clearance to outside corner (see below) G = clearance to inside corner (see below) H = *not to be installed above a meter/regulator assembly within 36" (91.4 cm) horizontally from the center line of the regulatorI = clearance to service regulator vent outlet [*72" (182.9 cm) minimum] J = clearance to non-mechanical air supply inlet to building or the combustion air inlet to any other fireplace [6" (15 cm) min. for 10,000 Btu or less; 9" (23 cm) in US if between 10,000 and 50,000, 12" (30 cm) in Canada if between 10,000 and 100,000; 12" (30 cm) in US if greater than 50,000, 36" (91 cm) in Canada if greater than 100,000] K = clearance to a mechanical air supply inlet [*In Canada, 6 ft. (1.83m) minimum; In US 3 ft. (91 cm) above if within 10 ft. (3 m) horizontally] L = † clearance above paved side-walk or a paved driveway located on public property [*84" (213.3 cm) minimum] M = clearance under veranda, porch, deck [*12" (30.5 cm) minimum ‡] N = clearance above a roof shall extend a minimum of 24" (61 cm) above the highest point when it passes through the roof surface and any other obstruction within a horizontal distance of 18" (45.7 cm) † vent shall not terminate directly above a side-walk or paved driveway which is located between two single family dwellings and serves both dwellings* ‡ only permitted if veranda, porch, deck or balconey is fully open on a minimum of 2 sides beneath the floor* * as specified in CAN/CSA B149 (.1 or .2) Installation Codes (1991) for Canada and U.S.A. Note: Local codes or regulations may require different clearancesA = 6" (15.2 cm) Inside CornerVBEVB = 6" (15.2 cm) C = Maximum depth of 48" (121.9 cm) for recessed locationD = Minimum width for back wall of recessed location - Combustible - 38" (965 mm) Noncombustible - 24" (61 cm) E = Clearance from corner in recessed location- Combustible - 6" (15.2 cm) Noncombustible - 2" (5.1 cm) Outside CornerRecessed LocationGHG = 12" (30.5 cm) minimum clearanceBalcony with No Side WallVJCombustible & NoncombustibleH = 24" (61 cm) J = 20" (50.8 cm) Balcony with Perpendicular Side WallCDCTermination Clearances for Buildings with Combustible and Noncombustible ExteriorsOpenable Figure 7 - Minimum Clearances for Termination Cap Venting Installation Instructions NOTICE: Read these instructions completely before attempting installation. These models are tested and approved for use with DESA (direct-vent) pipe components and terminations. The venting system must terminate on the outside of the structure and can not be attached to a chimney or flue system serving a separate solid fuel or gas burning appliance. A direct-vent appliance must have its own venting system. DO NOT common vent this appliance. These models are approved to be vented either horizontally through an outside wall or vertically through a roof or chase enclosure using the following guidelines: • When venting system terminates horizontally on an outside wall, you may install a standoff if the termination cap is to be installed directly on a combustible finish such as vinyl, wood, stucco, etc. • Never run the vent downward as this may cause excessive temperatures which could cause a fire. • Vent pipe air space clearances to combustibles are 1" on all sides except on the horizontal sections, which requires 2" clearance from the top of the pipe. Where the termination cap penetrates a combustible wall, 1" air space clearance is required. • Snorkel terminations are required when minimum clearance to grade cannot be met (see Figure 16 on page 11). • Have fireplace and selected vent components on hand to help determine the exact measurements when elbowing or offsetting. Always use wall firestops when penetrating walls and firestops when penetrating ceilings or attic spac...
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