Factory-installed 12A49 vent limiter allows for safe indoor mounting without separate vent lines

Industrial Durability: Robust construction designed for long-term cycling in high-demand hydronic environments

low-resistance electrical connections between the common

Superior Air Handling: Equipped with a thermostatic cage unit that automatically discharges air at steam temperature to prevent air binding

often due to improper venting or inducer motor performance

Lochinvar & A.O. Smith 100287156 Sensor Freon Factory-installed 12A49 vent limiter allowsEnsure your high efficiency condensing boiler or water heater maintains optimal operation with the Lochinvar & A. O. Smith 100287156 Flue Temp Sensor Kit. This genuine OEM flue temperature sensor is engineered to provide precise thermal feedback to the integrated control board, preventing hazardous heat buildup and potential heat exchanger damage. Designed for a broad range of Lochinvar Knight and A. O. Smith Cyclone models, this thermistor based