I have a 6000 watt Powerstroke unit, which would not fit your needs. Problem is, you have to be home for the unit to be effective. If you are not home you can't turn it on. The past three times here in NJ where we have lost power for significant amount of time, we have been on vacation and unable to start up the unit. I have two fridge/freezers, so have lost a total of 6 fridge/freezer loads during those events. This year I pulled the trigger and had a whole house generator installed. It will probably turn out to be a very expensive insurance policy, but at least piece of mind insurance.