Replies

1. 
   MikeK | Jul 11, 2007 10:26pm | #1

   There are split systems with multiple zones that allow separate thermostats for each Bedroom.  I have no knowledge of details or costs of such a system. You may want to google "Split system" and "multiple zones" to find additional info.

2. 
   BobChapman | Jul 12, 2007 12:11am | #2

   I installed two Unico systems in my 1883 three-story house: one for the third floor and one for the second (bedrooms) floor.  Works great.  Since I was remodelling the third floor at the time, it was pretty easy to get the small hoses pulled through, and to run the two plenums in the attic.

    

   Bob Chapman
1. 
   gumbelini | Jul 18, 2007 07:25pm | #3

   thanks for your reply. Was this a conventional forced air system or a 'power pack'?

1. 
   BobChapman | Jul 19, 2007 12:15am | #4

   Not sure what your term "power pack" means.  Unico is a competitor to SpacePak (spelling?), that uses 2" diameter hoses to bring the cooled air to the rooms.  Requires a larger plenum somewhere (attic in my case) from which these hoses are connected.

   Hope that helps.  Google Unico and you'll find their whole story.

    

   Bob

3. 
   DDay | Jul 19, 2007 01:50am | #5

   Unico is a high velocity system that uses 2" supplies and few returns. The systems work differently than conventional system, in that they move the air at a high rate and want the turbulance to mix the air and cool or heat the space better and more evenly. They are more expensive than conventional systems, so they are usually used for remodels in homes like yours. The design of the system is flexible, the main thing is to get the number of outlets per room right and the number for the house right.

   http://www.unicosystem.com/

4. 
   Jer | Jul 19, 2007 02:03am | #6

   Is there a thermo exhaust fan in the gable or roof of your attic? If so, is there enough venting for the exhaust? Start with that. It's relatively easy to do and inexpensive.
   How well is the attic insulated? Insulate the hell out of it.
   Can you reinstall another whole house fan. I think those things are great. We had one in our old farmhouse with lots of mature shade trees. It really kept things quite cool. Again, make sure there's adequate venting for that.
   If still not satisfied, go with the portable AC units.