These ignition transformers ignite the oil in hot water and steam boiler burners. They transform the incoming electrical power to a level high enough to ignite the oil droplets in the burner, producing a flame in the heating chamber that allows the water in the boiler to heat up.
Product Type Oil Burner Ignition Transformer, Voltage 120 V AC, Compatible Mfr. Model Number 313-28AB91, 5LAY-03, T-93, TW-10, XD-WN202, Overall Height 4 in, Overall Width 5 in, Overall Depth 5 in, Mounting Type End Hinge, For Fuel Type Oil, Amperage 23 mA