For the air cooled engine units I’d get a Kohler over the Generac.
I spent the extra $$$ for a 22kW Cummins with 2.4L liquid cooled engine. They no longer offer that model now the smallest Cummins offers with liquid cooled engine is a 25kW though it’s the same engine I have in mine.
Basically twice the price as an air cooled engine model but it also runs at 1800 rpm versus the 3600 rpm the air cooled engine units run.
Unit doesn’t get as hot, oil lasts longer before you have to change it, etc.
I do live in an area that has been and could be impacted by hurricane caused power outages which is why I spent the extra money for liquid cooled engine.
If you’re not expecting to be out of power for more than 2 or 3 days I’d get the Kohler with air cooled engine.
Last edited by gldprimr; 06/06/22.
