electric furnace [2]
Device using electricity for creating heat and blowing it through the duct system.
electric connection 
Device connecting the electric furnace to the dwelling’s electric system.
plenum 
Joining duct between the furnace and the hot-air distribution system.
air return 
Duct directing air from a room back to the furnace to be reheated.
filter 
Device for retaining dust suspended in the air extracted from the dwelling.
blower motor 
Device transforming electric energy into mechanical energy to drive another device.
heating element 
Electric device heating the air before distributing it through the ducts.