Within the past 2 years I have had 2 new furnaces installed by Trouble Free. One at the house I live in and one in my rental house. The one installed where I live went well. The installation looked professionally installed. The instillation of the new furnace at my rent house doesn't look as professional. The flu coming out of the furnace was screwed down. Air leaks were blowing out when the furnace was running, where the tech had forgot to tape the new duct work to the furnace. Not quite the professionalism they used in my own house. Also, the new duct work makes a vibrating noise when furnace is running. Furnace runs loud. At least the furnace is putting out heat. I wish I had the techs that installed the furnace where I live, would have installed the new furnace at my rent house.