[Strawbale] PEX, Concrete Slab, Fear of Death by

[Speireag Alden]

On 2008, Jan 28, at 14:46, MKL wrote:

>>      Yes.  The original house, where the radiant floor is, has  
>> R-20 under the floor.  The addition, which I am building now, and  
>> which will not have a radiant floor, is earth-coupled.  You don't  
>> earth-couple radiant floors, unless you're heating them only with  
>> totally renewable energy.
>
>
>  like wood?

     No.  Burning wood produces particulates and ashes, and most of  
the time the wood is not harvested sustainably, though in theory it  
can be.  I would not use wood in an application where you will lose  
70-80% of your input.

     Solar, wind, and hydro strike me as options.  Especially solar,  
where you don't have the electricity as an intermediate step.  But if  
you had a micro-hydro system producing more power than you needed,  
you could dump the excess as heat under your house.

-Speireag.