I just moved into house 2010 Goodman gas furnace, HVAC man says duct work reversed. Old wood/coal moved out, gas furnace moved in. Impossible for me to believe that it was installed wrong, intentionally or unintentionally. Leaves possibility motor was reversed thru surge? House sits beside three sewer lines of long runs to main. Electrical accumulation source? HVAC man says furnace not grounded. Sited downhill so always has water in ground around basement. Basement walls but not wet floor. Am not engineer or even informed. Just guessing. Something has to be wrong, what? katesisco@yahoo.com 218 590 4549 text |