GE PGP989 Owner's Manual And Installation Instructions page 21

Installation Instructions
EXHAuSt BloWEr rAtInGS
EXHAuSt BloWEr SAFEty WArnInG
Sufficient air is needed for proper combustion and exhausting of gases through the flue (chimney) of
other fuel burning equipment to prevent back drafting . Follow the heating equipment manufacturer's
guidelines and safety standards such as those published by the National Fire Protection Association
(NFPA), the American Society for Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) and
local code authorities .
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