Does anyone currently have a whole house standby generator? I am in the market for one but don't know much about them. I'm considering a 16kw or 20kw unit, natural gas hook up. Looking at a Generac and was wondering if anyone here has one and how it has held up. The electrician was here and thought a 16kw would be fine but a 20kw would do everything with no problem. Any thoughts or recommendations on what I should be watching for? Thanks.