Boiler structure

Boiler with waste heat recovery

Burner

Burner flashback detection and system shutdown apparatus

Burner for forced draft controlled mixture heating system using

Cast metal heat exchanger and method of formation

Cathodically protected water heater

Central heating boiler

Circulation type hot water supply device

Clamping apparatus for use in foaming water heaters

Cold water inlet for reducing accumulation of scale

Cold water inlet tube

Combination burner and flue gas collector for water heaters and

Combined heating and hot water system

Combined liquid foam stop and insulator for a tank assembly

Combustion air inlet diverter plate for a water heater

Combustion boiler

Combustion chamber shield for hot water heaters

Combustion chamber with high temperature protective coating

Combustion method and apparatus for reducing emission concentrat