Hi! So I’m looking to get a portable heater for my trailer. It’s a 6x10 enclosed trailer and I live in Illinois. Main need is for when not using trailer right now. So I would also need to have a portable battery station? Trailer is not located on my property so I am unable to just plug in the portable heater it in somewhere. Anyone have a suggestion on what kind of portable heater I would need to keep my equipment from freezing? That would help to also choice a power station.