Lennox 99M66 Heater Kit 318973-401 which is critical for maximizing

which is critical for maximizing thermal transfer from combustion gases to the circulating air stream while maintaining a robust pressure seal to prevent flue gas leakage

The alloyed metal construction and corrosion-resistant finish prevent premature failure caused by technical stress and environmental exposure

and MA-5210-0-0-4

Rugged Electrical Design: Built to withstand transient voltage spikes common in commercial HVACR environments

The contact assembly is engineered to handle frequent cycling while maintaining consistent electrical continuity

Lennox 99M66 Heater Kit 318973-401 which is critical for maximizingThe Lennox 99M66 (Model: ECB26 7CB PP) is a field installable 7. 5kW electric heater kit designed for high performance integration with CBX26UH series air handlers. Operating on a 208 240V single phase 60Hz power supply, this kit provides a nominal heat output of 25,600 BTUH at 240V, making it an essential component for supplemental or primary heating in residential and light commercial forced air systems. The assembly features an integrated circuit