The Home Depot, Houseneeds and Ingram's Water & Air Equipment carry propane furnaces for sale, as of 2015. These three retailers offer both propane-only and convertible natural gas models, giving consumers a wide selection of options for creating propane-fueled heating systems in homes or businesses.
The Home Depot provides free shipping on propane furnaces to homes or local stores, where shoppers may pick up the items for later installation. Houseneeds also carries many different wall-mounted and standalone furnace units, and the company's website hosts an online learning center to address common consumer questions. Ingrams Water & Air Equipment offers both residential and commercial propane furnaces, and the company provides free shipping with liftgate assistance on many items.