Combination stove-fireplace

Combination wood-fired boiler and storage apparatus

Combinational fireplace unit

Combinational fireplace unit

Combined cast fireplace and heat exchanger

Combined cooking machine

Combined fireplace hood and heating unit

Combined hot water heating and stripping column furnace and meth

Combustible particulate fuel heater

Combustion air system

Combustion air vent with automatic lock

Combustion apparatus

Combustion control system

Combustion heating apparatus

Composite fireplace construction

Composite polymer manifold for water heating unit

Condensate trap

Condenser lid

Control means and process for domestic hot water re-circulating

Control mechanism for a gas-fired water heater