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The CaGBC adopted a "low flow" fixture credit for SWH based on
the old CBIP program. The original intent was that low flow
lavatories and showers (lower than the building code minimum) would
receive credit. Unfortunately this was interpreted by many to
include process SHW loads like janitor sinks (filling a bucket uses just
as much hot water whether the fixture is low flow or not). As a
result, SHW savings are often overstated in LEED Canada
submissions. <br><br>
I am hopeful this loop hole will be closed at some point but so far I
haven't seen any movement in that direction.<br><br>
<br>
At 09:53 AM 25/09/2012, Nick Caton wrote:<br>
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Hi Tim,<br>
<br>
“Domestic Hot Water” is coined “Service Hot Water” in 90.1. Check
out Table G3.1, section 11 to start. Baseline efficiencies and such
are sourced from chapter 7.<br>
<br>
The LEED EAp2 excel template (last I used it – it’s a living document
that changes over time) includes inputs to describe what’s modeled for
proposed/baseline service hot water systems. The EAc1
template is set up to permit you to show differing consumptions for
proposed vs. baseline in regards to service hot water.<br>
<br>
If the proposed system is better than the minimum requirements for
efficiency and/or standby losses (as applicable), you should be able to
demonstrate some savings. <br>
<br>
Best of luck!<br>
<br>
~Nick<br>
<img src="cid:7.1.0.9.2.20120925113307.069aeeb0@enersave.ca.1" width=119 height=37 alt="cid:489575314@22072009-0ABB">
<br>
<b> <br>
NICK CATON, P.E.<br>
</b>SENIOR ENGINEER<br>
<br>
Smith & Boucher Engineers<br>
25501 west valley parkway, suite 200<br>
olathe, ks 66061<br>
direct 913.344.0036<br>
fax 913.345.0617<br>
<a href="www.smithboucher.htm">www.smithboucher.com</a><u> <br>
</u> <br>
<b>From:</b> equest-users-bounces@lists.onebuilding.org
[<a href="mailto:equest-users-bounces@lists.onebuilding.org" eudora="autourl">
mailto:equest-users-bounces@lists.onebuilding.org</a>] <b>On Behalf Of
</b>tim<br>
<b>Sent:</b> Tuesday, September 25, 2012 8:25 AM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] DHW savings not for LEED?<br>
<br>
The proposed design includes an instantaneous water heater, but I don’t
think that counts in EAc1. Is this correct? <br>
I couldn’t find mention of DHW in 90.1appendixG so I’m beginning to think
it should not be modeled at all.<br>
<br>
Also, there is no place to enter domestic hot water usage in the LEED
online template.<br>
<br>
<br>
Thanks,<br>
Timothy W. Hill<br>
<a href="mailto:tim.JRGA@fuse.net">tim.JRGA@fuse.net</a><br>
<br>
John R. Grier, Architect<br>
11309 Deerfield Road<br>
Cincinnati, Ohio 45242<br>
(513)489-3690<br>
<br><br>
<br>
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>><br>
Christopher Jones, P.Eng.<br>
Suite 1801, 1 Yonge Street<br>
Toronto, ON M5E1W7<br>
Tel. 416-203-7465<br>
Fax. 416-946-1005<br>
email cj@enersave.ca<br>
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