Monessen Hearth MJ27PR Indoor Fireplace User Manual


 
8 86D0024
FP2000
log clearances
W
H
The following formula can be used to determine the maximum heater rating per the denition of
unconned space:
BTU
/hr =
(L1 + L2) Ft x (W) Ft x (H) Ft.
x 1000
BTU
/hr
50
Consider two connecting rooms with an open area between, with the following dimensions:
L1 = 15
1
/2 Ft., L2 = 12 Ft., W = 12 Ft., H = 8 Ft.
BTU
/hr =
(15
1
/2 + 12) x (12) x (8)
x 1000 = 52800
BTU
/hr
50
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 = 29760
BTU
/hr
50
GENERAL INSTALLATION INFORMATION
Figure 1 - Example of a Large Room with 1/2 Wall Divider
Counter
Fireplace
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combustion and ventilation air by one of the methods described in the National Fuel
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WARNING