[Greenbuilding] New HVAC unit

[Bobbi Chukran]

Hi Bob,

I'm also on the Austin Permaculture list with you, and have read the  
posts about your home with interest.

That's amazing about your AC use!  We have several issues--mostly  
health related.  I have severe allergies to almost everything,  
including molds which are almost always high in this area.  So  
dehumidification and air filtering is essential.  We are planning on  
blowing in insulation in the outer walls of the house, which as far  
as we know are framed with 2x4's.  So that's the most we could get in  
the walls without some major demolition and reframing to make them  
deeper.  We didn't plan on changing the walls much since they are  
made of planks on both sides of the studs in addition to wallboard.   
There are already ceiling fans in each room.  We do plan on adding  
lots of insulation to the attic.

We have awnings over every window in the house, it's well shaded with  
huge old pecan trees, and there are 25 windows and three doors.

What kind of insulation did you use in your attic?

If we could downsize the system, that would be great.  But I'm pretty  
sure that one window unit won't do it for us, given that the house is  
not an open plan, and we don't plan on opening it up much from what  
it already is.

bobbi c.



On Jun 1, 2011, at 3:37 PM, Bob Waldrop wrote:

> We are in Oklahoma City.  We have 9 inches of insulation in the  
> walls, 14
> inches in the attic, ceiling fans in every room, R-20 insulated  
> shutters for
> all our windows (and some of the doors), some other miscellaneous  
> interior
> fans>