Grainger Industrial Supply, Sustainable Supply and Zoro all sell propane furnaces. One of the primary selling points of a propane furnace is that it operates much more cheaply than an electric furnace. Given that heating is the biggest expense for many families, propane furnaces represent a benefit for many budgets.
The product pages for propane furnaces on the sellers' websites include a number of features such as grille size, ignition system, supply pipe size, length of manufacturer's warranty, standards met, physical dimensions (height, depth, width, floor opening and floor to center of vent), the vent size and type, and the BtuH input and output, indicating the power requirement as well as the heat energy that the furnace emits. The Grainger website features a chat representative to assist customers with their purchase and answer questions.
The Sustainable Supply website offers multiple photos of propane furnaces, allowing shoppers to enlarge various features of the heater for closer inspection, in addition to the information listed above. The Zoro website includes a link to the manufacturer of the propane furnace, allowing the shopper to visit the manufacturer website directly, and learn more information about the company. As of 2015, Zoro also offers free standard ground shipping for propane furnace purchases.