I had the Generac inverter generator during the freeze
It's a 2000 watt unit
Kept it stored with aviation gas ..so no ethanol
I got it out during the freeze and it started kn 12 degree Temps in my garage
It was plenty for us to make coffe..charge phones , some LED lights and run the fridge
I could not be happier with how it preformed when I needed it
If that's an attached garage you are very lucky. Last Feb several people made that mistake and won't ever make another one. Deceased