Hacker News new | past | comments | ask | show | jobs | submit | from login

Efficient Hot-Water Piping (2013) [pdf] (garykleinassociates.com) 3 points by throw0101d 81 days ago | past | 2 comments Efficient Hot-Water Piping (2013) [pdf] (garykleinassociates.com) 119 points by rudedogg on March 7, 2018 | past | 56 comments

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact Search: