Inducer for condensing furnace

Stoves and furnaces – Hot-air furnaces – Compressed air

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Details

126 99R, 126112, 126 80, 4151692, 4151694, F24H 302, F01B 3118

Patent

active

053417950

ABSTRACT:
An inducer (40) for causing a flow of combustion air into and gases of combustion through and out of a furnace (10) of the condensing type. The inducer is intended for use, without modification of its design or size, in a series of furnaces of the same basic design but having different heating capacities and therefore different requirements for flow through the induction flow path. The furnace design is such that a given furnace is capable of operation so as to provide a flow of air to be heated that is either up, down or horizontal with only minor field modification on installation. The inducer has two discharges (43), only one of which is used in a given installation. The other discharge is blocked with a plug (61) of special configuration that can vary the output of the inducer to ensure optimum flow of combustion air into and gases of combustion through and out of the furnace. The inducer configuration is such that, in every possible orientation of the furnace installation, at least one of its two drains (47) is at the low point of the inducer housing ( 41) so that all condensate that collects in the housing can flow to a lowpoint drain regardless of the orientation of the furnace.

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patent: 4856550 (1989-08-01), Smelcer
patent: 4899726 (1990-02-01), Waterman
patent: 5046478 (1991-09-01), Clawson

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