Fw: Drainback vs. Closed Loop Circulators [RE-wrenches]

[Ken Schaal]

> Hey Conrad
>
> Would you describe the type and manufacturer [s] , as well as the
> contractors involved  , of drainback systems you have encountered in your
> area ?
> Drainback is a generic term and there are significantly different ways of
> achieving it.
>
> Thanks, Ken
>
>
> ----- Original Message -----
> From: "Jeff Clearwater" <clrwater at earthlink.net>
> To: <RE-wrenches at topica.com>
> Sent: Tuesday, June 06, 2006 1:55 AM
> Subject: Re: Drainback vs. Closed Loop Circulators [RE-wrenches]
>
>
> >
> > Hey Conrad,
> >
> > Is the drainback of the '80s a fair comparison to the drainback of
today?
> >
> > It's the failures of '80s glycol that pushes us to drainback.  But
> > then again is the glycol of the '80s a fair comparison to the glycol
> > of today?
> >
> > The debate goes on.
> >
> > Travis, you said "all the benefits of drainback" - Want to spell that
> > out for us?
> >
> > Conrad, game to do the same for glycol?
> >
> > Still Learning,
> >
> > Jeff C.
> >
> >
> >
> > >Jeff, Travis and other Drainheads,
> > >
> > >If you want to cut the power use more you can use two smaller
> > >circulators, cutting the second one out after 5 minutes (once you
> > >know you've filled the collector).
> > >Tek-Mar controller provides for this through a programmable second
> output....
> > >.
> > >BTW, out of the several hundred 80's systems that we've serviced
> > >here in the northeast, there is yet to be one surviving drainback.
> > >Some day I'll try to catalog this in the hopes of solutions.
> > >for starters:
> > >-corrosive drainback water?-circulators failing quickly and
> > >collectors corroding
> > >-freeze ups
> > >
> > >Those glycol loops sure hold up....
> > >
> > >Conrad Geyser
> > >Cotuit Solar
> > >


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