Heat matts and are they ok w/ grape vines

I need to know if the store bought grape vines, and if my bp(to be picked up tuesday) will be ok if she clime's on it when it is over the heat mat(w/ aspen subt.) ant not get to cold up there.

She'll be fine. Keep an eye out for mold on the grape vine as it goes though. Be sure to disinfect it throughly and bake it in the oven (around 250 for an hour, is one way) to kill any bugs that might be living in it.

Thx, and should I bake the store bought one's to?