Stoves and furnaces – Liquid heater – Fluid fuel burner for other than top-accessible vessel
Patent
1977-03-04
1979-04-24
Camby, John J.
Stoves and furnaces
Liquid heater
Fluid fuel burner for other than top-accessible vessel
4179, 126271, 219314, F24H 128
Patent
active
041506650
ABSTRACT:
A heater for use with hot tubs formed from material subject to damage from excessive heat, the heater comprising a heating element arranged within a chamber adjacent a thermally conductive plate with one or more hollow extensions penetrating through a surface portion of the hot tub to permit direct heat transfer between the thermally conductive plate and the hot tub interior. The thermally conductive plate is preferably formed with transparent inserts permitting light from the heating element to enter the hot tub, the heater also preferably including means for communicating additional hot tub accessories with the hot tub interior. The heater may also be employed with other liquid containers, for example, storage tanks which may be alternatively heated by solar energy.
REFERENCES:
patent: 1105496 (1914-07-01), Custis
patent: 1128451 (1915-02-01), Jefferson
patent: 1287876 (1918-12-01), Carlson
patent: 1288831 (1918-12-01), Carlson
patent: 1587717 (1926-06-01), Gardner
patent: 3441015 (1969-04-01), Oatman et al.
patent: 3797482 (1974-03-01), Nicollet
Camby John J.
Schwartz Larry L.
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