On 9/28/05, Tom Scheel <[EMAIL PROTECTED]> wrote: > I've proposed a system that combines heat exchange and storage, thus giving > you efficiency of design. The storage tank and the draindown tank can be the > same tank, thus removing a maintainance/failure item (glycol - which likes > to leak, is less efficient than water as a heat transfer medium, costs > $8/gallon (in the US)). Plus you are saving time as it looks like you are > hunting around and experimenting with low percentage ideas (PVC/CPVC = > PITA). > The proposed system does require a pump (you should be able to use two > circulators in series - read your pump sizing charts). As to "DHW through > excessive piping" - I presume you are talking about pressure drop. That is > solved by taking your 3/4" supply and running it through three 1/2" loops in > your heat exchanger. And you are only adding 100 to 120 feet of run, so the > pressure drop should be manageable (even if you kept it a single 3/4" loop > in the heat exhanger.
Tom, After re-reading your original post and then staring at a slew more diagrams, I have to say that I agree with you. As hard as I might try to avoid it, I am still overcomplicating this. Thanks, Ken _______________________________________________ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
