Most gas furnaces contain five main parts, all of which are essential to the heater functioning properly. The components include a burner, heat exchanger, ductwork, a flue or vent pipe and an ignitor to start the process... More » Home & Garden Heating & Cooling

Shoppers can purchase Nordyne gas furnace parts from the My HVAC Parts and Sears PartsDirect websites, as of 2015. These online retailers offer the ability to search by model number to help customers find a part that fit... More » Home & Garden Heating & Cooling

Goodman gas furnace parts include burner tubes, gas tubes, gas valve assemblies, pilots and heat exchangers. These parts may be available as aftermarket parts or included in the product delivered to the customer. More » Home & Garden Heating & Cooling
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To repair Lennox gas furnace parts, first determine the specific issue, and then replace or clean the failing part. Common problems with Lennox gas furnaces include incorrectly set thermostats, gas supply problems, fault... More » Home & Garden Heating & Cooling

Ruud gas furnace parts can be purchased online at and, as of 2015. Each site offers several Ruud gas furnace parts designed to replace worn out or damaged components. More » Home & Garden Heating & Cooling

Ducane gas and oil furnaces comprise numerous parts, including heat relays, sequencers, heater coils, heating elements and hot surface glow bars. Other parts found in Ducane furnaces are transformers, ignition modules, d... More » Home & Garden Heating & Cooling

Replacement parts for a gas furnace can be purchased at Repair Clinic, Reliable Parts, or HVAC Parts Warehouse. All three companies offer online purchasing, however only Repair Clinic and Reliable Parts also offer purcha... More » Home & Garden Heating & Cooling