I have a high efficiency (90%) gas furnace in the attic of a two room addition on the back of my house. The line draining the condensate from the furnace dumps into a PVC pipe (not permanently connected so that there is no backup into the heating unit) which is conected to a hose which runs out into the gutter for drainage. In the recent cold snap the water in the gutter froze up to the level of the hose (which comes into the gutter at the roof line) and then proceeded to freeze back up the hose into the attic. The condensate had nowhere to go so it overflowed at the point where the condensate empties into the PVC pipe and ruined the ceiling in the room below.
How can I remedy this situation? Are gutter heaters a good option and, if so where can they be purchased? Is there a way to keep the hose to the gutter heated?