[RE-wrenches] Summer cooling

[jay peltz]

Hi Ray,

I hadn't heard about condensation from infloor cooling but makes  
sense that it could happen.

Most of the infloor cooling that you are mentioning is from a  
regular  AC unit not say using solar thermal panels at night?

thanks,

jay

On Aug 20, 2008, at 3:33 PM, R. Walters wrote:

> Hi Dana;
>
> In-floor heating of a super insulated building is a great idea.  In- 
> floor cooling however, has some serious condensation problems and  
> is not a good idea.
> In earth Air duct systems can harbor mold and Legionaries' disease.
> Here in Northern New Mexico we use adobes (lots of thermal mass)  
> and open up to the cool night air. When I lived through Texas  
> summers, you either ponied up for AC, went to your mountain home,  
> or suffered.
> You stated the first 2 steps:
> super insulate & increase thermal mass.
> Next ?? :
> Reduce your cubic footage of air conditioned space.
> Reduce east & west glazing
> Grow overhanging deciduous trees on the East & West
> Use Fans
> Use some evaporative cooling if possible
> Use small High efficiency AC units (Sanjo?)
> Raise thermostat
> Use geothermal heat pumps
> Migrate?
> ?........
>
> Ray Walters
>
>
> On Aug 20, 2008, at 4:03 PM, Dana wrote:
>
>> I have always wanted to do a super insulated house design that had  
>> a large central masonry mass or floor slab with heat tubing that  
>> you could cool in the summer during the nighttime and solar heat  
>> in the winter with solar. Or an earth tube air duct system that  
>> you could pull cool night air through that would cool the slab. I  
>> built a Passive Annual Heat Storage home 16 years ago that kept  
>> the house at 68 F during the summer in western Washington. I was  
>> very comfortable. Any thoughts ?
>>
>>
>>
>> Thanks -
>>
>>
>>
>> Dana Orzel
>>
>>
>>
>
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