Enhanced Safety Logic: Integrated 90-second lockout timing and 3-try retry sequence prevent hazardous gas buildup in the event of flame failure

The assembly includes a replacement ignitor and a complete wiring harness

The pre-purge ensures the combustion chamber is clear of residual gas before ignition

power-duty solution designed for contractors requiring high field-selectability in retrofit and new-build HVACR applications

this 120V heating element provides the necessary surface temperature to achieve a clean light-off

Lennox 33M14 Heat Exchanger 30067439-890 Enhanced Safety Logic: Integrated 90-secondThe Lennox 33M14 Heat Exchanger is a heavy duty high heat aluminum heat exchanger assembly engineered for reliable thermal transfer in 10 to 20 ton LGB120 and LGB240 series rooftop units. As a veteran grade OEM replacement part (LB 101202G), it features 11 burner tubes designed to handle high demand cycles without premature metal fatigue. The aluminized steel construction provides superior thermal conductivity and corrosion resistance compared to