Intertherm electric furnace replacement parts are available to order on eBay, Amazon.com, Mobile Home Repair HVAC and H & S Mobile Home Supplies. These parts include heating elements, fused disconnects, sequencers, thermostats and blower wheels, as of March 2015.
EBay has the widest selection of the four websites and has several listings for electric furnace blower motors. Amazon.com sells only OEM heating elements. The Yahoo e-commerce website H & S Mobile Home Supplies carries a circuit breaker, fan switch and draw-power limiters for several Intertherm electric furnace models.
Shoppers need to know the part number because these sites carry dozens of parts, and some parts are labeled only by the part number.