My 10 year old Lennox high efficiency propane furnace had a failed heat exchanger. I found this myself when wife complained of propane smell. it had rusted through. I had purchased this high end furnace from my brother in law in the red river valley years earlier. He is a major Lennox dealer. I phoned him and was pleased to learn it was still under warranty, but that warranty did not cover labor and parts must be installed by a certified dealer. In the mean time I had to set up electric heaters, as the warranty parts were shipped from Minneapolis MN and it was late winter 2010. The local Minot Lennox dealer Absolute Comfort was hired to order the warranty parts and install them. He arrived a week later, but did not bring in the box with all the warranty parts included into my house. He carried in the heat exchanger only, unpackaged. I asked, "where are all the rest of the parts?" "This is all you get," he said, looking rather perturbed. I said "no that's not true". "I also receive new burners, burner box, hot surface igniter, etc." (NO!) he said. (This is it!) He installed the heat exchanger and left me with a bill which did take into account that I had already disassembled the furnace. As a retired USAF ICBM missile & B52 bomber repair technician, I found the furnace disassembly not a challenging issue at all. I phoned my brother in law in the red river valley and explained what had happened & was quickly informed exactly the parts in the box I should have received, because they had done this repair several times. He made A phone call to the Lennox District offices in Minneapolis. The next day Absolute Comfort called me back and said he had found those parts in the bottom of the box. Likely story! He came was very quiet and sheepishly installed all the warranty parts sent by Lennox for the repair. Then told me he never intended to cheat me, but he had missed seeing the parts in the box. burners and burner box are the size of a small bread box. How could you miss that. Some months later, a 92 year old lady friend of mine was bilked out of thousands of dollars by a heating contractor from Minot not fixing her problem, even billing her for time he was not in her home. I asked who would do this to you. She said Mr. so & so the young guy from Absolute Comfort. I told her what happened to me & learned he had been milking her for thousand s for several months. Get rid of him now I said, and as her out of state children said. I will call Connole-Sommerville to get you legitimate & honest service. She did tell Absolute not to return. Was happy with the other contractor.