Restaurants upgrade HVAC systems to limit spread of COVID-19 and last updated 2021-01-31 22:20:36-05 BIRMINGHAM, Mich. (WXYZ) â The end of another shutdown is almost over, as restaurants across Michigan are getting ready to let their customers back inside. âWe are so excited just to have people in here and to be warm again,â said Rachel Stemplewski, Taproom Manager at Griffin Claw Brewing in Birmingham. "People have been out there in the snow, in the rain, in the freezing cold bringing blankets and pillows to sit on, anything to keep warm to support us.â With fewer tables and bottles of hand sanitizer, it's easy to spot the changes the brewery made for indoor dining. However, their most important and most expensive change, is a bit harder to see.