157017 ⎘
Construction of valves or dampers for controlling air supply or draught
Sub-classes:Vent stack lids and associated systems and methods
#2Velocity damper for a recovery boiler
#3RACK OVEN AND SYSTEMS FOR USING THE SAME
#4Gas heater, method for operating the gas heater and a gas boiler
#5Velocity damper for a recovery boiler
#6Process and apparatus for reducing pressure in a flue gas stream
#7Non-return valve for flue gas venting and damper assembly for use therein
#8Rack oven and systems for using the same
#9Premixing apparatus
#10Combustion system
#11Method and Apparatus to Provide Ventilation for a Building
#12Method and burner using the curie effect for controlling reactant velocity for operation in pre-heated and non-pre-heated modes
#13HEATING APPARATUS WITH FAN
#14Boiler Flue Gas and Oven Exhaust Economizer Systems
#15Vent stack lids and associated systems and methods
#16Signal responsive well test burner
#17Method and burner using the curie effect for controlling reactant velocity for operation in pre-heated and non-pre-heated modes
#18Furnace heating combustion apparatus
#19Heating apparatus with fan
#20Gas boiler including output adjusting device, and method of adjusting output of gas boiler
#21Adjustable Primary Air Supply for Wood Burning Device
#22Damper for direct vent fireplace insert
#23Air control regulator for combustion chamber
#24Chimney damper
#25Apparatus and method for melting ice, snow or the like in connection with a furnace
#26Efficient solid fuel burning appliance
#27Apparatus having a heated screen for melting ice, snow or the like
#28Air control regulator for combustion chamber
#29Integrated air foil and diamond flow vane
#30Water heater with mechanical damper
#31Variable air access films