Parts for an Intertherm furnace are available at many online vendors and, as of 2015, the Magic Mobile Home Supply and Mobile Home Repair HVAC websites sell Intertherm replacement parts. In addition, the Intertherm official website has a search tool to locate local distributors of its products.
Customers can find Intertherm parts dealers in their area by selecting the Dealer/Service Locator option on the Intertherm website. On that page, the user is asked to enter his zip code and to choose an acceptable mileage range for results. This search feature may also be accessed from the Contact Us section of the website, which also contains the company's mailing address.