I installed a New HEIL 95% 2 Stage Gas Furnace with a 15SEER Heat Pump Condenser. There were some issues with the flooring where the old downflow had leaked and rotted the floor. The carpenters were going to jack the floor and "Fix Em Up"! The owner now has a 4" hump in his kitchen floor which is on the other side of the house from where the damage is! The owner called me to come move the furnace so they could finish up. The owner now has way more issues than you could imagine with his flooring. The Carpenters put a so called beam over the furnace and a stack of blocks in front of the service panel! These guys are real Gems!