While designed specifically for Trane equipment

By utilizing a non-porous heating element

After ensuring the unit is powered off

Is the Lennox 87H92 interchangeable with the 20121901

including the 90UGFA

Modine 5H0750290000 Transformer Els PW 17895 While designed specifically for TraneMaintain the electrical integrity of your unit heater with the Modine 5H0750290000 Transformer, a precision engineered 40VA control transformer designed for reliable stepped down power distribution. This OEM replacement part is the current direct substitute for the legacy Modine 5H75029, ensuring a perfect physical and electrical fit without field modifications. It operates with a 120V primary voltage and delivers a stable 24V secondary output,