One thing I forgot to address, is the Heat & Cooling system. Of course the type and name brand is varied and you will investigate that aspect for your needs of course.
But many over look the ductwork application to render the system quite. Many units are installed in the verticle position in a closet, with the proper size ductwork in the attic. You will hear them run.
But a custom builder, that knows what he is doing, will place the air handler in the horizontal position in the attic. There will be a return air chase from the floor to the attic, then once in the attic, the return air plenium will have Two each 90 degree turns before it is attached to the air handler. The size of the return is calcaulted at at one size larger than the system which is in place. For example, if you have a 4 ton system, size the return air for a 5 ton.
The supply plenium is also over sized, and so is the ductwork. So if the room size calls for an 8 inch supply duct which is 200 cfms, install 9 inch duct. Do this in all rooms. Excpet the bathrooms, leave them at 6 inch, or what ever the SF calls for.
By all this over sizing of ductwork, and the attic installation with the 2 each 90 degree turns in the return plenium, you will not hear the system run.
This will take up allot of attic space. But it sures is nice to hear the system cycle.
Last edited by BananaTom; 06-08-2012 at 12:23 PM.
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