GENERAL INSTALLATION INFORMATION
Inside Wall
Fireplace
H
W
Figure 1 - Example of a Large Room with a See-Through Unit as 1/2 Wall Divider
The following formula can be used to determine the maximum heater rating per the definition of unconfined space:
BTU/Hr = (L1 + L2) Ft x (W) Ft x (H) Ft x 1000
50
Consider two connecting rooms with an open area between, with the following dimensions:
L1 = 151/2 Ft., L2 = 12 Ft., W = 12 Ft., H = 8 Ft.
WARNING
BTU/Hr = (151/2 + 12) x (12) x (8) | x 1000 = 52800 BTU/Hr | ||
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If the area in which the heater may be operated is smaller than that defined as an unconfined space or if the building is of unusually tight construction, provide adequate combustion and ventilation air by one of the methods described in the National Fuel Gas Code, ANSI Z223.1/NFPA54, Section 5.3 or applicable local codes.
8 | 43D0122 |