White Rodgers

Buying Guide: Furnace Igniters, Relays and Thermostats

Hot Surface Igniters and Upgrade Kits
The 767A-357 and 767A-361 are 120 V silicon carbide hot surface igniters with 5.25 in. leads and a receptacle with .093 inch male pins. The 21D64-2 is a 120 V silicon nitride upgrade kit with 15.5 in. leads, made to convert silicon carbide ignitors, and it includes universal brackets, an instruction booklet and ceramic wire nuts.

Relays, Contactors and Thermostats
The 90-293Q 24 V relay is a compact, totally enclosed design, and the 90-370 fan relay is too. The 90-244 is a two-pole mechanical contactor rated 30A at 24 V with a low VA coil for cooler operation. The B50 is a mechanical line voltage thermostat for single or double pole applications, and the NP110 is a non-programmable single stage thermostat with a backlit display.

Frequently Asked Questions

What does White Rodgers offer?
White Rodgers offers hot surface igniters, an ignitor upgrade kit, 24 V furnace and fan relays, a two-pole mechanical contactor and two thermostats. These parts are used in furnace ignition, fan control and heating and cooling switching.

How do I choose the right igniter, relay or contactor?
Match the part number or size printed on the old part before ordering. For igniters, check the voltage and lead length, and for relays and contactors check the coil voltage and amp rating against your equipment manual.

Which thermostat should I choose?
The B50 is a mechanical line voltage thermostat that can be used on single or double pole applications. The NP110 is a non-programmable thermostat for single stage heating, cooling and heat pump systems without an auxiliary heat stage.