Furnace monitoring and thermostat cycling system for recreationa

Details Furnace monitoring and thermostat cycling system for recreationa Furnace monitoring and thermostat cycling system for recreationa

1993-01-14

1993-12-14

Wayner, William E.

Automatic temperature and humidity regulation

Hot-air furnace

Air and fire control

236 94, 431 27, G05D 2300, F23N 500

Patent

active

052694585

ABSTRACT:
Recreational vehicles and marine vessels provide for cabin environment heating by a thermostatically controlled furnace which is typically fueled by a portable supply of liquefied petroleum gas and electrically powered by an on board battery. The invention detects and corrects for the situation where the furnace does not light by cycling the thermostat to allow the furnace to relight. The device will allow for three trials before the thermostat is locked out in an off position to prevent the furnace from blowing cold air and draining the battery system. The device provides for centrally located indication of the current temperature and a resettable display of the furnace retrial and lockout condition status, as well as the gas pressure as delivered to the furnace.

REFERENCES:
patent: 4951870 (1990-08-01), Ballard et al.
patent: 4978292 (1990-12-01), Donnelly et al.

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