Replacement parts for Lochinvar gas water heaters can be purchased online from specialty part suppliers such as Parts4Heating.com as well as from general appliance parts retailers such as SupplyHouse.com. Online auction sites such as eBay also commonly feature listings for Lochinvar gas water heater replacement parts.
Users browsing the SupplyHouse.com site can filter listings for Lochinvar replacement parts based on price range and the model of water heater for which the part is intended. Each listing contains information about the part's function, its part number, its per-unit price and details about the number of units available. If a part is currently out of stock, the listing provides an estimate of how long it takes to have the part shipped to the customer. Users can also rate their satisfaction with each part, with reviews consisting of a star ranking and a written account of the customer's experience.
Listings on eBay contain varying amounts of information, as the site does not enforce any minimum requirements for product descriptions. In some cases, aspects of a part, such as its condition or model number, may not be clear, in which case the user may need to contact the seller for additional information. The site warns against purchasing products that do not contain clear descriptions and pictures to avoid scams.