ensuring the valve remains open during power loss to prevent stagnant line conditions or freezing

Common Questions What bulb size does the F89-0148 accommodate

To ensure proper fit and timing

For residential outdoor products with only one coil

the SQ series accommodates a wide range of evaporation temperatures

Allanson Transformers 2721-668 Transformer Els PW 17895 ensuring the valve remains openThe 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,