This furnace ignitor replacement is built to withstand the extreme thermal cycling inherent in modern high-efficiency HVACR systems

Durable nickel-plated forged brass body with stainless steel internals for extended service life

5" water column pressure to prevent burner or heat exchanger stress

3-wing propeller designed specifically for critical condenser fan motor applications

it relies on the equipment housing and airflow to protect internals from debris

Lennox 99M66 Heater Kit 318172-701 This furnace ignitor replacement isThe 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