22 certified for use with natural

Durable Construction: Built to withstand the high-temperature environments found in commercial and residential boiler rooms

Consistent Millivolt Output: Optimized thermocouple positioning ensures a stable 25-30mV signal for reliable gas valve operation

it is a comprehensive unit heater replacement burner assembly

this assembly features a durable ceramic insulator and a robust electrode designed to withstand high-temperature combustion environments

Lennox 17F38 Collector Box 318820-201 22 certified for use withThe Lennox 17F38 Collector Box is a critical OEM replacement component engineered for high efficiency condensing furnaces. As a primary furnace flue collector, this part is responsible for gathering combustion byproducts and corrosive condensate from the secondary heat exchanger and channeling them safely toward the inducer motor and drainage system. Manufactured with high grade, heat resistant composite materials, the Lennox 17F38 is designed to