Passive ventilation trickle vent with volume controlled air...
Passive venting device
Passive venting device
Passive venting device
Patio heater double dome infrared heat reflector/converter
Patio heater side heat director
Patio wok stove
Paving or revetment provided with a heat conveying element
Peat and lignite burner
Pedestal for a burner of a household appliance
Pellet burner appliances and burners therefor
Pellet stove
Pellet-fired barbecue
Percussion mole
Percussively ignited or electrically ignited self-contained...
Perfluoropolyethers modified in the polymeric chain and...
Perforated belt evaporative cooler
Perforated faced insulation assembly and method of making...
Perforated heat transfer sheet
Perforated transparent glazing for heat recovery and solar...