My wife and I are looking to build a home in a suburb of Minneapolis, MN.
The home will be 1200 sq feet on the main level and 1200 sq feet on the 2nd level. The basement will be unfinished with a bonus room above the garage (approx 350 sq ft). Total sq feet when completely finished - approx 3700 sq feet.
The AC is really only run from late May until mid Sept. Even then there are days/weeks that go by in which the AC isn't on (heck... it's May 16th and we still have our heat on - its 50 degrees outside). There are days/weeks during the summer when the humidity/dew points are very high.
For heating during the winter we are considering in floor radiant heat for the whole house, part of the house or just the basement (the basement is for sure going to have in floor radiant heat).
We plan on being in the home for 15+ years and if we can save annual money on cooling costs every year by doing mini duct we would consider it.
Some std construction feature from builder std feature list:
R-22 2x6 walls with batt insulation
R-11 insulated foundation with 2x4 walls
R-45 insulated ceiling
Poly under basement slab
Exterior doors and windows foamed.
My question very simply - Should we consider a mini duct system (spacepak or unico) for the new construction on a home this size? Or use tradtional AC? We aren't concerned about looks we are concerned about overall cost and efficiency.
[Edited by mn4az on 05-16-2005 at 10:21 PM]