[RE-wrenches] Heat diversion - Hydro coils- Solar

[Dana]

My .02. 

The hydro coils I have installed I have treated like I treat solar hot water
installations. It will need a diversion to eliminate the human factor. I
installed a heat dump, baseboard or a set of coils underground to divert to.
I have used a variety of diversion options some battery direct and some more
main stream. An aqua stat to a relay and a pump rated for the temperature it
is about to encounter, works well with battery based. Same for a grid tied
application. Steal 24 VAC from a transformer in place of the battery
voltage. 
Apricus Solar has a HEAT DIVERSION air unit that is rated for [30] of the
Apricus tubes, it will divert 30K BTU per day on an annualized basis.
Basically a small radiator I have a commercial heat diversion valve that is
available  and opens and starts to divert at 190 DEG. F. 

Contact me off line at below if you are interested.

Thanks -

Dana Orzel

Great Solar Works, Inc
www.solarwork.com
E - dana at solarwork.com
V - 970.626.5253
F - 970.626.4140
C - 970.209.4076


-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Drake
Chamberlin
Sent: Tuesday, November 11, 2008 9:38 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] hydro coils

At 02:12 PM 11/10/2008, you wrote:
>It also helps to run the water coming from the bottom of the tank (to your
>coil) through some baseboard so once the tank is heated to the bottom it
>starts dumping heat as more is gathered.

That sounds like an excellent idea.  An aquastat controlled valve or 
pump that would circulate the hot water through a baseboard heater 
when the tank approached dangerous temperatures seems to be a perfect 
solution.  Using a P/T valve as the only safety makes me uneasy.  If 
it were vented to a good drain where no one could get scalded, and it 
almost never was triggered, it might be ok.


Drake Chamberlin
Athens Electric
OH License 44810
CO License 3773
740-448-7328
740-856-9648  


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