Laars Heating Systems R2071400 Flame/Sensor Kit 321894-708 techs rely on this boiler

techs rely on this boiler control circuit board to resolve communication errors between the thermostat and the combustion system

System Protection: Actively directs water away from the unit

Corrosion Resistant Trim: Features stainless steel trim and an EPDM seat for superior durability against aggressive hydronic fluids

this switch maintains tight tolerances across repeated thermal cycles

which often result from poor flame rectification or carbon buildup on the igniter surface

Laars Heating Systems R2071400 Flame/Sensor Kit 321894-708 techs rely on this boilerThe Laars Heating Systems R2071400 Flame Sensor Kit is a critical OEM component designed for high performance gas fired boilers. As an essential part of the boiler ignition system, this kit ensures precise flame rectification by monitoring the combustion process in real time. Designed specifically for the NeoTherm series (models 750, 850, 1000, 1200) and MagnaTherm boilers, this sensor prevents hazardous gas buildup by confirming proper burner