I'm in the process of getting quotes on a trane XV90 High efficiency gas hot air furnace and a 13 seer trane AC. The sales person mentioned installing a pump that takes away the excess condensation that results from the AC operation(and run it thru the sewer PVC pipe in our cellar) ....right now our setup, (in our basement) the installer who installed our current AC just uses PVC pipe and gravity (no pump) to run the condensation in the drain around the basement. While it's probably best to get the water out of the house all together, I'm not really sure if this is necessary for us since we're in the northeast and run the AC approx 2-3 weeks total in a season. He really didn't press it either way and just mentioned it as an option....was wondering what opinions you have on this issue. Thanks.