Replacement parts for Dayton furnaces can be purchased online through tool and parts suppliers such as Grainger and Zoro, as well as from discount retailers such as Amazon. Internet auction sites such as eBay also frequently contain listings for Dayton furnaces and parts.
Listings on the Grainger site contain a static picture of the item, as well as an option to observe the part in a 360-degree view, customer ratings, and a description of the parts purpose and specifications. Users also have the option to order parts on an as-needed basis or set up a recurring buying schedule. The site features several customer support tools including a live support option that allows users to enter a phone number and receive a call from a customer support agent, as of March 2015.
Amazon's listings for Dayton furnace parts also contain a section for customer reviews, which are comprised of a quantitative satisfaction rating and a qualitative written account of the customer's experience with the part. Each review can be rated for helpfulness, with the most helpful positive and negative reviews being featured at the top of the review page. Shipping options for each item are listed beneath the selling price, which include both cost and estimated delivery time.