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Because this is a direct-acting knob adjustment model with no built-in thermometer
Accuracy is maintained as long as the capillary is not kinked
Enhanced Durability: The Totally Enclosed Enclosure protects internal windings from windblown dust and moisture
the internal plunger or diaphragm in the 312-577 kit likely requires replacement
mid-point ground transformer with a thumb screw terminal type
Burnham Boiler 8116324 Vent Damper Els PW 17895 Because this is a direct-actingThe Burnham Boiler 8116324 7" Vent Damper is a critical automatic fuel saving component designed for atmospheric gas fired boilers. This motorized vent damper functions by closing the flue pipe during the furnace's off cycle, preventing residual heat from escaping through the chimney. Engineered for seamless integration with Burnham heating systems, this unit features a redundant safety switch to ensure the burner only fires when the damper is in the
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