Thank you, Greg for another job well done! We feel you are very thorough, and you do not overlook potential problems. For example, we has a new furnace installed this year under a home warranty plan we had, and the installers apparently did not open a valve, or device that controlled heat circulation. Greg caught it and he opened the valve completely. He said that heat could have backed up and would have caused potential damage to the furnace or worse. This is why we choose Moon Air and their well-trained mechanics.