European Home Gas Stones Vent Free, Installation, Operation And Owner'S Manual, Page: 7 / 28

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If the area in which the heater may be operated is smaller than that de-
fined as an unconfined space or if the building is of unusually tight con-
struction, provide adequate combustion and ventilation air by one of the
methods described in the National Fuel Gas Code, ANSI Z223.1/NFPA 54,
Section 5.3 or applicable local codes.
W
ARNING
The following formula can be used to determine the maximum heater rating (per the definition of unconfined space)
that is allowed in your space:
Maximum BTU/Hr. = x 1000
Example A: 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.
x 1000 = 52,800 BTU/Hr.
Example B: If there were a door between the two rooms the calculation would be based only on the room with the
heater.
x 1000 = 29,760 BTU/Hr.
Will my space support a Gas Stones Vent Free with Fusion Basket?
Maximum BTU/hr. my space will support (use formula above) 1) __________________
BTU/hr. of European Home Gas Stones Vent Free 2) ____39,000________
If the answer to 1) is
greater
than 2) then your space
will
support the installation of the Gas Stones Vent Free; if 1) is
less
than 2) then your space
will not
support a Gas Stones Vent Free.
(L1 + L2)ft. x (W)ft. x (H)ft.
50
(151/2 + 12)ft. x (12)ft. x (8)ft.
50
(151/2)ft. x (12)ft. x (8)ft.
50