We have no shutters and do have to run when it is very cold leaving in Dec and returning in late Jan. After reading this thread I may opt for the infamous cardboard behind the bumper treatment to see if it makes any difference.
We have no shutters and do have to run when it is very cold leaving in Dec and returning in late Jan. After reading this thread I may opt for the infamous cardboard behind the bumper treatment to see if it makes any difference.