GBlist: hybrid systems: passive solar + everything??

["Bion D. Howard" <bdhoward@ix.netcom.com>]

For the reasons I elaborated on before, there may be better uses for
electric operating power than to try to balance out only a few degrees of
temperature difference across the slab.  

I could not imagine you trying it with an uninsulated slab, but even with
insulation (which ironically would help sub-slab temps stay low by limiting
loss to soil) the sub-slab soil is still going to be a massive heat sink on
the system.  All the simulations and monitored data on slab-on-grade
systems I have ever done (or reviewed) indicate this in a big way.

Once you build it please keep us informed with any measured data or billing
information you might produce.  

I was only trying to get careful consideration going -=- with my history
plenty of folks know that sometimes I give in and say well "just do it"  -- 

worst case I guess would be having to disable the control logic and use the
floor as a traditional HRF system.

Good luck -- and at least be proud you are thinking the thing through!!

_______________
>Date: Fri, 28 Jan 2000 06:57:06 EST
>From: BGuyton@aol.com
>Subject: Re: GBlist: hybrid systems: passive solar + everything??
>
>  You seem to have some reaction to the idea of the system described...
 
     (snip more lengthy discussion)
    ||       Contact:  Bion D. Howard, President
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