5-pole or 2-pole setup

is a specialized field-service requirement for technicians balancing and maintaining pneumatic HVAC control systems

this is a factory-calibrated

The Reznor 210765 Nozzle Temperature Switch is a critical genuine OEM replacement part specifically calibrated for high-performance waste oil heaters and unit heaters

Resideo Q4100C9044 Hot Surface Ignitor 320734-701 5-pole or 2-pole setupWhen you are out on a service call and encounter a furnace with a cracked or carbon fouled ignitor, you need a reliable silicon carbide hot surface igniter that drops right in. The Resideo Q4100C9044 is a professional grade 120 Vac replacement engineered for standard gas fired appliances. This 120 volt hot surface ignitor is compatible with both Natural and LP gas systems and is specifically designed to withstand the thermal stresses of repeated