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This Pre-wired relay is UL listed for plenum use
reducing labor time during maintenance or troubleshooting
Thermal Stability: Built to endure the high-temperature environments of industrial steam and hydronic heating systems
and PDP series
York S1-029-21121-000 Inshot Burner This Pre-wired relay is ULReliable gas to air mixing is critical for maintaining high AFUE ratings in newer high efficiency furnaces. The York S1 029 21121 000 Inshot Burner is a precision engineered OEM furnace replacement part designed to direct fuel through the orifice with a venturi effect that pulls in primary air for optimal combustion. Built for durability in high cycle environments, this single tube inshot burner minimizes byproducts like soot and carbon monoxide,