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including Lennox CHA15
Because it is dual powered
solder-free connection to the existing wiring harness
this blower motor maintains structural integrity under the mechanical stress common in commercial hydronic HVAC environments
the Weil McLain 386-700-355 Combustion Chamber Kit is the required OEM solution for restoring thermal integrity
Lochinvar & A.O. Smith 100145019 Air Fan 318172-701 including Lennox CHA15The Lochinvar 100145019 Combustion Air Fan is a critical replacement component designed for high efficiency hydronic boilers and volume water heaters. Engineered for precise pre mix combustion air delivery, this centrifugal blower assembly ensures optimal air to fuel ratios across various firing rates. Originally sourced under part numbers such as Lochinvar FAN3032, it is compatible with select Knight XL and Copper Fin II models, as well as A. O.