F - Mech Eng,Light,Heat,Weapons – 23 – J
Patent
F - Mech Eng,Light,Heat,Weapons
23
J
126/87
F23J 11/00 (2006.01) F24H 8/00 (2006.01)
Patent
CA 1238541
ABSTRACT An extension, fitted to the wall outlet of a residential high-efficiency gas furnace producing exhaust gases of comparatively low temperatures, allows the exhaust gases to be vented over the roof of the residence while permitting the materials condensing out of the exhaust gases to drain therefrom.
467754
Bonisteel Raymond H.
Gowling Lafleur Henderson Llp
LandOfFree
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