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The unit features tri-class protection (Class 5
This unit includes built-in flame current test pins for instant signal verification and is designed to manage a single gas valve and high-voltage spark electrode efficiently
ensuring the burner assembly operates at peak thermal efficiency based on real-time heating demand
eliminating the risk of using incorrect aftermarket seals
leading to "ghost" faults
Resideo TL8100A1008 Thermostat 321042-401 The unit features tri-class protectionThe Resideo TL8100A1008 from the LineVoltPro 8000 series is a versatile 7 day programmable hydronic thermostat engineered for high performance control in residential and commercial heating. This specialized line voltage thermostat handles a wide operational range, including 120Vac, 240Vac, and 24Vdc, making it a reliable solution for technicians working on millivolt compatible systems such as gas fireplaces or wood boilers. Its single stage heat logic