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Your Furnace Replacement: All About the ECM

Your Furnace Replacement: All About the ECMA furnace ECM (electronically commutated motor) runs longer and performs better, yet consumes up to 75 percent less energy than a standard permanent split capacitor (PSC) motor. An ECM is a brushless blower motor with fully controllable speed and torque. The blower portion of the furnace is a major contributor to the electrical consumption of your heating system. Yet, blowers are not figured into the energy-efficiency ratings published by the furnace manufacturer. Therefore, a new higher-efficiency furnace mated with a conventional PSC blower motor may not live up to those improved efficiency specs.  Here’s what’s different about a furnace ECM: Continue reading “Your Furnace Replacement: All About the ECM” »