04360152 is referenced by 8 patents and cites 12 patents.

An auxiliary boiler is provided for substantially reducing fuel consumption of a conventional forced-air heating system. A boiler tank substantially filled with water is connected by hot and cold water lines to a heat exchanger disposed within the cold air duct of the forced-air heating system. A firebox which extends into the boiler tank is adapted to receive combustible material such as wood for heating the water in the tank. A pump directs hot water from the tank through the hot water line to the heat exchanger whereby cool air moving through the cold air duct is preheated as it passes through the heat exchanger. Heating tubes in communication with water in the boiler tank may extend through the firebox for supporting logs therein. Additional heating tubes may extend through a flue directed upwardly from the firebox through the boiler tank.

Title
Auxiliary heating system
Application Number
6/184920
Publication Number
4360152
Application Date
September 8, 1980
Publication Date
November 23, 1982
Inventor
Steven J Miller
R.R. 1, Wayland, 52654
IA, US
Lester E Schlatter
R.R. 1, Wayland, 52654
IA, US
Agent
Zarley McKee Thomte Voorhees & Sease
IPC
F24D 1/00
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