Matches 1 - 5 out of 5
Match Document Document Title
6394042 Gas fired tube and shell heat exchanger  
A gas fired tube and shell heat exchanger directs a flame directly into an inlet end of the tube bundle and the flame and exhaust are drawn through the tube bundle by an induced draft blower...
4470359 Auxiliary furnace in combination with a boiler  
A boiler which is designed to be fired by oil and/or gas comprises a water cooled combustion tube closed at one end and located within a water space of the boiler, is connected to a solid fuel...
4294198 Heating boiler for liquid or gaseous fuels  
A heating boiler is provided which includes a water jacket including front and rear walls with fuel flues being employed in the boiler. A tube is provided which extends through the water jacket and...
4089278 Furnace, especially a coal burning furnace, and method of operation  
A furnace, especially a coal burning furnace, in which the coal to be burned is placed on a grate near the bottom of a combustion chamber. According to the invention, a fan, or blower, has the...
3392711 Fire tube boiler or water heater  
Matches 1 - 5 out of 5