I seem to recall the previous attempt at heated seats did not end up so well
In 1999 crews completed a seven-month stadium overhaul that included constructing 76 brand-new dugout suites and two new enclosed club sections each containing 500 seats. Fans in the dugout suites watch the action just 40 rows from the field. In addition, the Bills replaced 6,800 seats in the sideline club sections with revolutionary contoured heated seats, the first of their kind in North America.
After a couple of seasons - the system faltered due to global warming (Ooops - I meant weather)