I live in Indiana and need to replace my existing AC and natural gas furnace (all piping, vents and ductwork will be reused). I have a two-story, 3500sf home (which I plan to live in for another 20-25 years) and have been quoted about $xx by a couple of companies to install a Trane XV90 2-stage variable speed 100,000 BTU upflow natural gas furnace, a Trane XL14i 3.5 ton (42,000 BTU) air conditioning unit w/R-410A, a Honeywell whole house humidifier and whole house duct cleaning (they are also "throwing in" 3 and 10 year mainenance service contracts.

Is this about right on size of units and pricing.

Any knowledgeable comments would be greatly appreciated. Thank you!

[Edited by Baldloonie on 10-25-2005 at 06:44 PM]