Glossary
Equipment
ECM blower
An Electronically Commutated Motor, a variable-speed, electronically controlled blower motor that adjusts airflow precisely and uses far less electricity than the old fixed-speed PSC motors.
Why it matters for your home
The blower runs whenever your system does, heating, cooling, or fan-only, so its efficiency compounds all year. ECM blowers also enable better dehumidification (slower airflow wrings out more moisture) and quieter operation. In a furnace quote, the blower type quietly determines how well your AC performs too.
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