252-ohm signal at 77

providing the control board with the reliable microamp signal required to maintain the gas valve circuit

If your media is compatible with FKM

If a common wire is unavailable

Beckett Igniter 51970U Terminal Base Kit 322027-701 252-ohm signal at 77The Beckett Igniter 51970U Terminal Base Kit is a field proven solution for technicians integrating smart home thermostats into existing oil heating systems. This heavy duty OEM replacement base provides the essential "C" terminal required to power modern Wi Fi enabled thermostats without the need for additional external transformers. Specifically engineered for the Beckett A C Ready Kit, it integrates seamlessly with 51950U and 21905U assemblies,