Hah, this reminded me of a submission from a couple of years back [0] about efficient hot water piping, and lo and behold, the URL is for Gary Klein Associates

Hah, this reminded me of a submission from a couple of years back [0] about efficient hot water piping, and lo and behold, the URL is for Gary Klein Associates [1]. [0] https://news.ycombinator.com/item?id=16540802 https://news.ycombinator.com/item?id=16540802 [1] http://www.garykleinassociates.com/PDFs/15%20-%20Efficient%20Hot-Water%20Piping-JLC.pdf http://www.garykleinassociates.com/PDFs/15%20-%20Efficient%2...