How often should you run an Onan 7.5KW we usually don't have a regular usage of ours we only have 44 hours in 13 years. we have 50 amp service here at the house and normally use the camp ground hookup...
I run my genny all the time. I try to use it once a month but sometimes that slips a month. But not more. I have over 3000 hours on it and it runs great.