Last November our gas heater died. I had a Goodman high efficiency gas htr installed (I think 93 or 96 percent efficient). The installer ordered a single speed htr but I had him re-order the model with the variable speed motor at a cost of about $400 more. My installer didn't seem to know anything about this particular htr, but he installed it anyway. When he replaced the htr, he also replaced the cooling coil or evaporator coil (it's under the house with the heater and air handler). Anyway, it took a long time to get it installed but it worked well after it was finally finished and the AC seems to have done a really good job. My problems are that #1, I never recieved a sales agreement, bill of sale, or anything to show that I bought this unit from the person. #2, with the new system, there is now a 2-inch pvc pipe that exits through the foundation wall to the outside. About 6 feet in, the pipe branches off into 2 pipes that go back to the htr/air handler. One of these pipes was disconnected or fell off after installation. the installer keeps saying he'll come back and put it back, but he never does. When the termite inspector was here he tried to put it back but it wouldn't stay. I noticed when he was in that area and doing something that water all of a sudden started coming out of a small pipe which exits the foundation about 10 feet away from this pipe. During this same time, our hardwood floors are buckling curling over the area where the htr/ air handler is located. The termite guy didn't see any leaking pipes (all newly replaced a couple of years back), but he did notice this pipe laying on the ground. Could this pipe laying on the ground/being disconnected affect the moisture in the floor? Does it affect the efficiency of the AC/Htr Unit? Do i need to get another HVAC prefessional to look at my system? It's only 8 months old and the contractor not only replaced the heater but all the ductwork. Am I being a worry-wart over nothing. It's been 3 weeks and 3 or 4 calls without a response except that the last time I actually spoke with the owner and he sai he personally would come out and check it. It's been a week and no one has responded. I called again tonight, got the answering machine again. I once again asked if the pipe could be re-attached and also if it might be contgributiong to the moisture. Whether he comes or not, tomorrowI have someone coming to chjeck my hardwood floors and to see if they can figure out where the moisture is coming from.