Allanson Transformers 2721-668 Transformer 30067439-890 High Torque Transfer: Includes dual

High Torque Transfer: Includes dual set screws for a rigid

or if the fan runs continuously regardless of the thermostat setting

As a veteran-grade air dryer bypass valve

Skin oils cause hot spots that lead to premature failure

This 10-inch diameter propeller is built for high-efficiency thermal management

Allanson Transformers 2721-668 Transformer 30067439-890 High Torque Transfer: Includes dualThe Allanson 2721 668 Ignition Transformer is a heavy duty, iron core electromagnetic unit designed for reliable oil burner ignition. This transformer operates on a 120Vac supply voltage and delivers a high voltage 10,000Vac secondary output at 23mA. Engineered with a midpoint ground configuration, it ensures stable arc performance and consistent combustion in residential and commercial heating systems. As the direct replacement for 2721 668SF models,