My Generac came with the house. It's a 35kw water cooled 4 cyl. LP with a dedicated 750 gal tank. Engine is a Japanese (Mitsubishi) 4 cylinder. It has 3xx hours on it now. Runs the self test every Friday. A couple of times a year I let it run for an hour under load. I has zero failures other than a new battery after it set for a year un-powered while we did a remodel. It is probably 10-12 years old now.
I’ve had a Generac 15kw propane unit since 2002. No hour meter, but we lose power here a lot, a rural area. I’ve lost power for up to 2 weeks. I don’t run it 24/7, but 10 to 12 hours a day. I probably have well over a 1000 hours.
