This is my first posting here. I found it while searching for info on best HVAC furnaces. I am considering installing a new gas furnace to replace my aging (More than 15 years) Snyder*** furnace. Its heat exchangers are badly rusted and it is noisy. I found that the quietest furnaces are Trane and Lennox. The models are XV80 and G60. Does anybody has any experience with either one to recommend it. Also how is the noise comparison between the two. Both claim to have the quietest one in the world. I just want to see from real cutomers and how happy they are with their units. Also does anybody suggest another brand like Carrier and is it better than the above two. Your feedback is greatly appreciated.