Hi Peter,
There are some hi end units that are really nice.
Takagi, Rennai are the two that come to mind that are really
amazing. They have digital remote controlls and are are designed to
mounted outside, which saves a lot of
interior space, cost of reworking the flue etc.
Jay
Peltz power
On Dec 7, 2008, at 3:22 PM, Peter Parrish wrote:
We are getting ready to install a SDHW system for a customer and we
looked at a number of things regarding his current set up. I just
posted a question about tankless heaters but I wanted this query to
be a separate one. The customer’s mains water pressure is 88 psi on
a Saturday afternoon and some time over the next 18 hours, the
pressure went as high as 96 psi. I understand that 80 psi is the
high end of the safe range in general and that 96 psi on a regular
basis can/will damage valves and possibly trigger T&P valves on
water heaters.
At the recommendation of a plumber I know I looked into pressure
reducers, specifically the Wilkins/Zurn line. All the Wilkins
regulators produce zero pressure drop at zero flow. What good are
these products in protecting plumbing systems from high mains
pressures at night when pressures tend to be the highest and usage
is at a minimum or even zero?
Are there products that will prevent system pressures from exceeding
a set point (e.g. 60 psi) under any flow condition including zero?
- Peter
Peter T. Parrish, President
California Solar Engineering, Inc.
820 Cynthia Ave., Los Angeles, CA 90065
Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885
CA Lic. 854779, NABCEP Cert. 031806-26
[EMAIL PROTECTED]
_______________________________________________
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-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: [email protected]
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
