Al’s suggestion is good. I have two Honda eu1000s for manual start situations.
My concern for power outage is when either it’s prolonged or when I’m not home to pull start the smaller units. I realize that my link is to a more costly unit, but I bought it two years ago and it has done great w keeping the whole house going......including the fish room. I just consider this unit part of what living in the country is about. When I bought mine, it was on sale and then I had to have it installed and a propane tank put in the yard. My wife was not happy about the cost until we had the house warm and working during our recent winter outages. It has already paid for itself in savings of house issues of outages.....no frozen pipes, no having to live in a hotel, no rotten frig. foods, thawed freezer foods, sump pump failure, and no having to replace pricey Discus/Koi etc. just my thoughts.....
https://www.homedepot.com/p/Briggs-S...0346/207044702