Vanguard heater replacement parts can be purchased online or over the phone from several retailers, including SearsPartsDirect.com, DesaParts.com and MasterParts.net. Availability and selection of Vanguard heater replacement parts varies by retailer and the model of Vanguard heater.
Customers can also order Vanguard heater replacement parts by calling Sears' customer service line at 1-800-252-1698, as of February 2015. The line is available seven days a week, but its hours vary by day. Desa Parts can be reached at 1-877-475-5660. Master Parts sells it parts through PartsFor.com, and it can be reached at 1-616-791-0505. Parts For's customer service line is available Monday through Friday.