This ignitor assembly is verified for use in Maxon OvenPak II models (specifically sizes 425

commonly used in chilled water systems

Key Benefits Direct OEM Compatibility: Ensures exact fit and specific gas flow rates for Laars heating units

Superior Sealing: The TFE-coated EPDM seat provides an airtight seal that prevents simmering and premature leakage at 15 PSIG

Optimized for R410A: Specifically calibrated for the pressure-temperature characteristics of high-efficiency R410A systems

Laars Heating Systems R0023000 Limit Switch 321042-401 This ignitor assembly is verifiedThe Laars Heating Systems R0023000 Limit Switch is a critical safety component engineered to provide overheat protection for high performance hydronic and pool heating systems. This 150F high limit switch is calibrated to automatically interrupt the electrical circuit when internal water temperatures exceed the 150F threshold, effectively preventing thermal damage to the heat exchanger and downstream piping. As a veteran grade OEM replacement part,