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The Lennox 12K48 LP Burner Orifice is a critical component for maintaining precise manifold pressure in Lennox furnace LP conversion kits
the 64391 kit includes the bracket and the specialized high-temperature tape required for the conversion
This 160F CO Auto Limit Switch acts as a critical safety benchmark
Broad Interchangeability: Replaces multiple previous versions
Lennox 66J78 Limit Switch Els PW 17895 The Lennox 12K48 LP BurnerExperienced HVAC contractors recognize the Lennox 66J78 Limit Switch as a critical safety component for maintaining furnace integrity and preventing heat exchanger damage. This OEM Lennox replacement part is a 36T series disc style control designed for High Limit or Secondary Rollout applications. It features a Normally Closed (NC) circuit that opens on temperature rise to interrupt the heating cycle if internal temperatures exceed safe operating
