I think it's a sponsorship deal. Lots of Amish people in Nebraska from what I hear. In fact, according to my amish friend, at any given Nebraska home football game, approx. 10 percent of the crowd is Amish, although many of those are likely "Closet Amish".
I was thinking the heaters would be used to keep the receivers hands warm, most notably Niles Paul's.
Closet Amish OMG I just pooped a little bit.