“You’ll need an out building to house it”
Not true. They all have weatherproof enclosures. Ours sits outdoors. It had to be a minimum of 24 inches away from the house and out from under the eaves. I installed it 36 inches from the house to meet those criteria.
Absolutely agree with you that you want a continuous duty rated unit.
The founder of Generac died this week. He had an interesting life story.
Hope his neighbors don’t complain about the noise or while he was out someone stopped by who need a free generator to support a habit.