Comments on: Designing for Livability Liveblog Part 2 http://seattletransitblog.com/2009/10/16/designing-for-livability-liveblog-part-2/ Transit in the Greater Seattle Area Fri, 25 May 2012 21:03:58 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: josh http://seattletransitblog.com/2009/10/16/designing-for-livability-liveblog-part-2/#comment-74386 josh Sun, 18 Oct 2009 19:45:19 +0000 http://seattletransitblog.com/?p=8644#comment-74386 The waste sewer heat idea isn't new -- somewhere I have a builder's guide from before WWII showing how to construct a heat exchanger to preheat domestic hot water using a lead coil wrapped around the iron sewer drain. (It also had an early alternative to anti-scald shower valves -- the hot and cold lines to the shower both ran into a large mixing chamber inside the wall, whose volume moderated temperature swings so brief drops in cold water pressure didn't change the shower output temperature enough to cause burns.)
The waste sewer heat idea isn’t new — somewhere I have a builder’s guide from before WWII showing how to construct a heat exchanger to preheat domestic hot water using a lead coil wrapped around the iron sewer drain.

(It also had an early alternative to anti-scald shower valves — the hot and cold lines to the shower both ran into a large mixing chamber inside the wall, whose volume moderated temperature swings so brief drops in cold water pressure didn’t change the shower output temperature enough to cause burns.)

]]> By: Designing for Livability Liveblog Part 3 - Seattle Transit Blog http://seattletransitblog.com/2009/10/16/designing-for-livability-liveblog-part-2/#comment-74058 Designing for Livability Liveblog Part 3 - Seattle Transit Blog Fri, 16 Oct 2009 23:55:39 +0000 http://seattletransitblog.com/?p=8644#comment-74058 [...] from AIA Seattle’s Designing for Livability: Sustainable Cities conference today. Part 1 and Part 2 were posted earlier today. This is the last post from the [...]
[...] from AIA Seattle’s Designing for Livability: Sustainable Cities conference today. Part 1 and Part 2 were posted earlier today. This is the last post from the [...]

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