158645 ⎘
Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators using solid fuel
FURNACE
#2Furnace
#3APPARATUS FOR AN IMPROVED WOOD BURNING HEATER
#4Furnace
#5Furnace
#6Device for converting heat into electrical power
#7PELLET FURNACE
#8Forced draft direct vent type room heater
#9Forced draft direct vent type room heater
#10HEAT EXCHANGER