(taken from apelectric.com)
"Kohler 20RESA 20kW Generator
Whether you're home or away, your KOHLER Generator will automatically kick in whenever the power goes out. Restoring power in as little as 10 seconds, KOHLER Generators have extraordinary reliability and quiet operation similar to a central air conditioner. KOHLER backs each generator with a 5-year/2,000-hour limited warranty. From our first generator in 1920 to our bold new lineup now, KOHLER Generators are a trusted brand by hospitals, airports and the National Weather Service."