Todd,
I’m afraid that any PT valves that I’ve ever known have continued to weep indefinitely after one or two overheat triggers. I would not recommend relying on them for heat control devices. Conrad Cotuit Solar NABCEP thermal cert. _____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Todd Cory Sent: Monday, November 10, 2008 9:01 PM To: RE-wrenches Subject: Re: [RE-wrenches] hydro coils Properly protected with a code required P/T valve this is a non-issue. Todd Conrad Geyser wrote: Drake, Yes the tank can overheat is the answer! Anybody doing this should be aware of the explosive nature of superheated water in a pressurized tank. Assuming that you are using an insulated tank, you need plenty of storage. 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. Conrad Cotuit Solar -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Drake Chamberlin Sent: Sunday, November 09, 2008 2:08 PM To: RE-wrenches Subject: Re: [RE-wrenches] hydro coils At 11:56 AM 11/6/2008, you wrote: is a thermo siphon feed as done in days of old. This is self regulating and worry free Why is the system worry free? Don't the coils thermo siphon into a tank that could overheat? Thanks Drake Chamberlin Athens Electric OH License 44810 CO License 3773 740-448-7328 740-856-9648 _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org -- Todd Cory KE6SXS <mailto:[EMAIL PROTECTED]> [EMAIL PROTECTED] Mt. Shasta Energy Services License C-10 #811428 P.O. Box 689 Mt. Shasta, CA. 96067 (530) 926-1079 “I'd put my money on solar energy...I hope we don't have to wait till oil and coal run out before we tackle that." ∞ Thomas Edison, in conversation with Henry Ford and Harvey Firestone, March 1931
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