Replacement parts for Heil HVAC systems can be purchased online trough specialty HVAC parts retailers such as Shorty's HVAC Supplies, general equipment parts sellers such as SupplyHouse.com and online auctions sites such as eBay. The Heil website also lets users search for licensed dealers, which frequently carry replacement parts.
The Shorty's HVAC Supplies website lets users view Heil parts either as a grid of pictures or a traditional list but does not offer detailed filtering by criteria such as price range or part type, as of March 2015. Each listing contains details about the part's purpose and function, the selling price and a picture of the part, if available. Listings also contain customer ratings that consist of a satisfaction ranking from one to five stars and a written account of experience with the product.
Listings on eBay do not contain user ratings of products but do include links to each seller's feedback page. All feedback is written by site users who have purchased an item from that seller and cover pertinent details about the seller's customer service.
The Heil website contains a search page that allows users to locate dealers within either a specific ZIP code or a city and state. Results include the name and contact information for the dealer as well as its distance from the specified location.