Common Questions: How often should I clean the F825-0262

How do I identify if this switch is the correct replacement

As a SPDT spring wound timer

and forced air systems

MAPP/propylene

Allanson 421-331 Transformer Els PW 17895 Common Questions: How often shouldThe Allanson 421 331 Ignition Transformer is a high performance direct replacement oil burner transformer engineered specifically for Lennox oil burners. Designed for reliability in demanding combustion environments, this unit features a 120V primary supply voltage and a robust 10,000V secondary output at 23mA. The midpoint ground configuration ensures stable arc performance and minimizes electromagnetic interference within the burner housing. Built