Originally Posted by kok328
High Efficiency furnaces condensate as part of the combustion process. Insulating that attic space to keep above freezing is a wise decision. I had one freeze up on me where all the condensate tubing plugged up with ice and the pressure switch would not "make". I chose the option of wrapping all condensate lines with heat tape to prevent the problem from reoccurring.
What are the rules on the condesate line or exhaust line, windows, eaves, doors, etc.