Ken, Appear to be leaking from where heat exchangers contact bottom. I do not know the specific tank temps as these were not my tanks, or customers tanks. No, sidewall penetrations.
What tank lining material have you worked with? And how have they been holding up? Dave -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Ken Schaal Sent: Thursday, August 28, 2008 9:27 AM To: RE-wrenches Subject: Re: [RE-wrenches] Hot Water Tanks Dave and others- Where and how do these leaks occur? Stress at points of contact with bottom of copper coils? Deterioration of the EPDM over time? at what average and maximum temps? Sidewall penetrations below water level? Other issues? Thanks Ken Schaal CommonWealth Solar ----- Original Message ----- From: "David Palumbo" <[EMAIL PROTECTED]> To: "RE-wrenches" <[email protected]> Sent: Thursday, August 28, 2008 9:00 AM Subject: Re: [RE-wrenches] Hot Water Tanks > We have experience with STSS tank's. Lot's of Tarm's installed around here > in the past 10 years with that tank. Too many of the tanks leak after 8 to > 10 years. That's why we decided to make our own tank. > > Dave > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Jeff > Blick > Sent: Wednesday, August 27, 2008 5:28 PM > To: [email protected] > Subject: Re: [RE-wrenches] RE-wrenches Digest, Vol 1, Issue 95 > > > > Hiya Dave, > We installed an STSS tank at a very large thermal system in Colorado this > past winter. Check out their website, excellent product. If nothing else > this will give you a jumping off point in your research efforts. The > website is stsscoinc.com. Good to hear from you the other day...talk to > you > soon....... > > > Jeff Blick > PV installer > Sunlight Solar Inc. > 4 NW Franklin > Bend, OR 97701 > direct: 541-306-4196 > fax: 541-322-1911 > [EMAIL PROTECTED] > www.sunlightsolar.com > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > [EMAIL PROTECTED] > Sent: Wednesday, August 27, 2008 10:37 AM > To: [email protected] > Subject: RE-wrenches Digest, Vol 1, Issue 95 > > Send RE-wrenches mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > > http://lists.re-wrenches.org/listinfo.cgi/re-wrenches-re-wrenches.org > or, via email, send a message with subject or body 'help' to > [EMAIL PROTECTED] > > You can reach the person managing the list at > [EMAIL PROTECTED] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of RE-wrenches digest..." > > > When responding to posts within the Digest, be sure to restore the > Subject: > line to the original > > Today's Topics: > > 1. Re: Hot water tank liner recommendations? (David Palumbo) > 2. Re: Hot water tank liner recommendations? (Aaron Wellendorf) > 3. Sunny Boy 6000U (marco) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 26 Aug 2008 22:25:53 -0400 > From: "David Palumbo" <[EMAIL PROTECTED]> > Subject: Re: [RE-wrenches] Hot water tank liner recommendations? > To: "RE-wrenches" <[email protected]> > Message-ID: > <[EMAIL PROTECTED]> > Content-Type: text/plain; charset="iso-8859-1" > > Wrenches, > > Does anyone have a recommendation for a waterproof material to line a 950 > gallon hot water storage tank? This insulated storage tank will have heat > exchange coils from a wood fired Tarm boiler as well as from SHW > collectors. > The liner must be able to withstand temperatures of 180 degrees F. > > We have had recommendations that include EDPM roofing membrane, and pond > liner material http://www.firestonesp.com/pondgard.asp?sub=b1a and > http://www.firestonebpe.com/lining/tech_data/tech_guidelines/_down/_en/T > and > http://www.firestonebpe.com/lining/tech_data/tech_guidelines/_down/_en/T > > Also, there is a concern that these tank liners have leaked in the past > because the bottom of the tank liner was eventually penetrated due to poor > protection from the stress of having the copper heat exchanger coils > sitting > on it. I'm wondering if closed cell blue(or pink) board insulation would > be > a good choice for this duty. Will it hold up over the years at temps up to > 180F? As an alternative we could mill up some local Hemlock wood to > separate > the coils from the liner. Hemlock has been used for years to build spring > boxes out of, the reputation being "that as long as the wood stays wet it > will last for decades". > > And, is there a water treatment product that we should add to the storage > tank that will help protect the liner from breaking down over the years? > > Thanks for your time, > > Dave Palumbo > Independent Power LLC > > > > > ------------------------------ > > Message: 2 > Date: Wed, 27 Aug 2008 09:28:06 -0700 > From: "Aaron Wellendorf" <[EMAIL PROTECTED]> > Subject: Re: [RE-wrenches] Hot water tank liner recommendations? > To: "RE-wrenches" <[email protected]> > Message-ID: > <[EMAIL PROTECTED]> > Content-Type: text/plain; charset="us-ascii" > > I would ask that you contact Stephen Rhoades at Burke Industries: (800) > 669-7010 x406, www.burkeind.com. Burke Industries is manufacturer of > Hypalon, one of the best single ply membrane roofing products. The same > (or similar) products are used for reservoir liners, pond liners, > waterproofing underground homes, etc. If you need to set something on > the membrane such as a heat exchanger coil, then have a pre-made walkpad > heat welded under the area of the coil. The walkpads are several times > thicker than the membrane itself and are made for rough service areas. > Stephen really helped me a lot on one of my large commercial projects. > > Aaron Wellendorf > > > > > ------------------------------ > > Message: 3 > Date: Wed, 27 Aug 2008 06:53:30 -1000 > From: "marco" <[EMAIL PROTECTED]> > Subject: [RE-wrenches] Sunny Boy 6000U > To: "'RE-wrenches'" <[email protected]> > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset="us-ascii" > > Amigos y amigas, > > I'm looking for a new or simply working old-style SMA SB 6000U. Might > anyone have one they'd be willing sell me? If so, please contact me > off-list. > > thanks, > marco > > Marco Mangelsdorf, Ph.D., President > Electrical Contractor License C-26351 > 69 Railroad Avenue, A-7 > Hilo, Hawai'i 96720 > (808) 969-3281, 934-7462 facsimile > > > > > > > > > > ------------------------------ > > _______________________________________________ > List sponsored by Home Power magazine > > [email protected] > > http://lists.re-wrenches.org/listinfo.cgi/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > > > > End of RE-wrenches Digest, Vol 1, Issue 95 > ****************************************** > > _______________________________________________ > List sponsored by Home Power magazine > > [email protected] > > http://lists.re-wrenches.org/listinfo.cgi/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: [email protected] > > Options & settings: > http://lists.re-wrenches.org/options.cgi/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: [email protected] Options & settings: http://lists.re-wrenches.org/options.cgi/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: [email protected] Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org

