Heat exchanger having a gas flue
Heat exchanger with internal pin elements
Heat exchangers
Heat transfer apparatus for water heater
Heat transfer mechanism with thin filaments including ceramic hi
Heater for process fluids
Heating boiler having a vertical burner tube
High efficiency water heater
Hot-fluid generator using catalytic combustion
Integrated boiler burner with balanced heat flux
Low No.sub.x integrated boiler-burner cogeneration apparatus
Method and apparatus for low NOX combustion of gaseous fuels
Method and apparatus for low NOX combustion of gaseous fuels
Method and apparatus for the combustion of gaseous or liquid fue
Multistep water heater having a device for increasing combustion
Quiet, non-condensing liquid heater using a non-mixing blower co
Radiant cell watertube boiler and method
Refractory choke for a high intensity combustor
Small once-through boiler
Vaporizer for liquefied natural gas