Ignition transformers provide the high voltage needed to create a reliable spark at the burner electrodes, igniting the atomized oil spray during startup and sometimes during re ignition cycles. Reliable ignition reduces misfires, flame instability, soot buildup, and safety lockouts. The transformer is designed for appropriate duty rating, insulation, and output voltage matched to the burner assembly. Proper selection and maintenance improve combustion efficiency and system safety by ensuring the flame establishes quickly and consistently under varying temperatures and draft conditions.
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