How Long Do Whole-Home Generators Typically Last?
Wondering how long a whole-home generator will last? A quality standby generator is rated for roughly 1,500 to 3,000 run hours, which works out to about 15 to 25 years of typical use — and 30 to 40 years or more for units that don’t run often. The single biggest factor is maintenance: staying on top of annual oil, filter and spark-plug service, exercising the unit monthly, and keeping a three-foot clearance for airflow can push a generator toward the high end of that range, while heavy loads, poor airflow and skipped maintenance shorten it. Most homes
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