United States Stove B9945L manual Installation, Minimum Clearances

INSTALLATION

Thefollowingformulacanbeusedtodeterminethemaximum heater ratingperthedefinition of unconfinedspace:

BTU/HR = (L1+L2) Ft x (W) Ft x (H) Ft x 1000

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Considertwoconnectingroomswithanopenareabetween,
with the following dimensions:(See Fig. 2, Example)
L1=15-1/2 Ft., L2=12 Ft., W=12 ft., H=8Ft		H (8')
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	L2 (12')
=52800 BTU/HR
	L1 (15-1/2')	W (12')
If there were a door between the two rooms the calculation

would be based only on the room with the heater. BTU/HR=(15-1/2) x (12) x (8) x 1000

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FIGURE 2.

=29760 BTU/HR

WARNING WARNING WARNING

When installing the appliance directly on carpeting,tile or other combustible material,otherthanwoodflooring,theappliancemustbeinstalledonametalor woodpanelextendingthefullwidthanddepthoftheappliance.

Iftheareainwhichtheheatermaybeoperatedissmallerthanthatdefinedasan unconfined space or if the building is of unusually tight construction,provide adequatecombustionandventilationairbyoneofthemethodsdescribedinthe NationalFuelGasCode,ANSIZ223.1,Section5.3,orapplicablelocalcodes.

Ensure the minimum clearances shown in FIGURE 3 are maintained for accessibility for purposes of servicing and proper operation.Left and right clearancesaredeterminedwhenfacingthefrontoftheheater.

36"

8"

8"

42"

4"

Maintaintheseclearancesto ensure adequate space around air opening for properoperation.

Minimumclearancestocombustibles:

Topofheater	36"
Sidesofheater	8"
Frontofheater	42"
Rearofheater	4"

FIGURE 3. Minimum Clearances

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