Adaptor for installing flue liners to direct vent fireplace inse

Adjustable orifice plate for exhaust ducts

Aero circulator stove

Aerosol generating rotary pulse-jet orchard heater

Air conditioner

Air control for a clean burning fireplace

Air inlet apparatus

Air intake apparatus

Air tight fuel burning stove

Airtight stove with dripless flue collar and cover plate assembl

Anti pollution insert

Apparatus and method for reducing peak temperature hot spots...

Apparatus and method of automatically regulating intake of air i

Apparatus for central heating

Apparatus for exhausting the combustion gases of a stove fired o

Apparatus for producing hot gas for the shrinkage of synthetic r

Appliance for improved venting

Appliance for improved venting

Arrangement in combustion chambers for burning solid fuel

Artificial campfire