Gas and electric heating system

Abstract

The gas and electric heating system has combination gas and electric heat generators to provide energy to a steam-generating boiler. The system utilizes a blue-flame, gaseous-fuel burner disposed externally of the boiler in one embodiment and a flame jet burner in a second embodiment. Electrical heating elements are positioned inside the boiler. Steam generated in the boiler flows to a heating core. The core is positioned in an air duct. Heat is transferred from the core to air flowing through the duct. The heated air flows from the duct into an area to be heated. Controls are provided to correlate the functions of the various components in the system.

1 . A gas and electric heating system, comprising:
 a boiler tank forming a steam producing chamber;   a flame jet burner for generating burning gases,   a heating duct positioned adjacent the flame jet burner for receiving the burning gases, the heating duct being disposed within the boiler tank;   at least one electric heating element positioned in the steam producing chamber; and   a first conduit connected to the boiler tank for supplying water to the steam producing chamber.   
   
   
       2 . The gas and electric heating system according to  claim 1 , further including an inducer positioned in said heating duct to enhance the flow of burning gases in said heating duct. 
   
   
       3 . The gas and electric heating system according to  claim 2 , further including a third conduit connected to said boiler tank for conveying steam from said steam producing chamber. 
   
   
       4 . The gas and electric heating system according to  claim 1 , further including means on said first conduit for controlling the flow of water to said boiler tank. 
   
   
       5 . A gas and electric heating system, comprising:
 a boiler tank forming a steam producing chamber;   a flame jet burner for generating burning gases,   a heating duct positioned adjacent the flame jet burner for receiving the burning gases, the heating duct being disposed within the boiler tank;   a plurality of electric heating elements positioned in the steam producing chamber;   a heating core connected to the steam producing chamber for receiving steam therefrom;   an air blower having an air duct, the heating core being positioned in the air duct;   a first conduit connected to the boiler tank for supplying water to the steam producing chamber; and   means disposed on the first conduit for controlling the flow of water to the boiler tank.   
   
   
       6 . The gas and electric heating system according to  claim 5 , further including:
 second and third conduits connecting said boiler tank to said heating core for supplying steam from said steam producing chamber to said heating core; and   means disposed on the second and the third conduits for controlling the supply of steam from said steam producing chamber to said heating core.   
   
   
       7 . A gas and electric heating system, comprising:
 a boiler tank forming a steam producing chamber;   a flame jet burner for generating burning gases,   a heating duct positioned adjacent the flame jet burner for receiving the burning gases, the heating duct disposed within the boiler tank;   a plurality of electric heating elements positioned in the steam producing chamber;   a heating core connected to the steam producing chamber for receiving steam therefrom;   an air blower having a duct for providing heated air into an area to be warmed by the heated air, the heating core being positioned in the duct;   a first conduit connected to the boiler tank for supplying water to the steam producing chamber;   means disposed on the first conduit for controlling the flow of water to is the boiler tank; and   a small bleeder line connected to the heating core, the bleeder line opening into the area to be warmed for supplying humidifying steam to the area.   
   
   
       8 . The gas and electric heating system according to  claim 7 , further including:
 second and third conduits connecting said boiler tank to said heating core for supplying steam from said steam-producing chamber to said heating core; and   means disposed on the second and third conduits for controlling the supply of steam from said steam producing chamber to said heating core.   
   
   
       9 . The gas and electric heating system according to  claim 8 , further including a control sensor disposed in said duct for controlling said blower.