Allanson Transformers 421-BT387 Transformer Els PW 17895 more frequent changes may be

more frequent changes may be required to prevent increased static pressure

This Wayne combustion repair kit includes a high-quality 2-electrode set with buss bar assemblies (21666-013 and 21667-013)

This electrode is a critical HVAC replacement part designed to withstand high-temperature combustion environments while providing a consistent spark gap and accurate flame feedback

Key Benefits for HVACR Contractors Extended ODF Connections: Features 3/8" copper stubs that permit brazing into the line without disassembling the valve body

water heaters

Allanson Transformers 421-BT387 Transformer Els PW 17895 more frequent changes may beThe Allanson 421 BT387 is a heavy duty ferromagnetic ignition transformer designed for constant duty service in high demand oil heating systems. As a universal service replacement, this 120V oil burner transformer delivers a consistent 10,000V secondary output at 23mA, ensuring a stable arc for reliable ignition in residential and commercial applications. Engineered with a mid point ground and a double pole configuration, the 421 BT387 features a