Hybrid direct/indirect water heating process and apparatus
Ice fishing hole heater
Ignition device for water heaters
Immersible water heater
Immersion tube heater treater improved immersion tube heater tre
Indirect heat transfer apparatus
Induced draft fryer
Induced draft heat exchanger with serpentine baffles
Induced draft submerged burner
Inner door for water heater
Insert for the furnaces of boilers
Instantaneous gas water heater
Instantaneous gas water heater
Instantaneous steam generator
Insulated firebox for swimming pool or spa heaters for reduction
Insulated fluid storage unit and method of making
Insulated server
Insulating blanket for a water heater
Internally mounted flue damper with exterior free-standing dampe
Jacketed wood stove