There are some very serious issues that would need to be addressed if the Vikings were to play at TCF Bank Stadium for a period of time. First and foremost is beer. People can't be expected to watch a NFL game without beer. It just can't be done. Secondly, something would need to be done about the atmosphere. It's not sterile enough, and all the stuff that mentions the University of Minnesota and it's partners would need to be covered unless they're Vikings sponsors. And it goes without saying that suite, concession, and parking revenue would need to go to the right people.
Heating coils are just an afterthought, people.