Ventilation apparatus

Details Ventilation apparatus Ventilation apparatus

1990-04-23

1991-03-19

Joyce, Harold

Heat exchange

With valve or movable deflector for heat exchange fluid flow

With by-pass of heat exchanger or heat exchanger section

165 54, F24F 708

Patent

active

050000810

ABSTRACT:
An apparatus including a ventilation conduit mounted within a ceiling structure of a dwelling, with an exhaust fan and intake fan arranged at ninety degrees relative to one another, with an intake pipe and exhaust pipe arranged contiguously about their major extent relative to one another to effect heat exchange minimizing cold air entering the dwelling.

REFERENCES:
patent: 1529711 (1925-03-01), Parrott et al.
patent: 3791279 (1974-02-01), Holt et al.
patent: 4336748 (1982-06-01), Martin et al.
patent: 4846261 (1989-07-01), Kittila

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