:rss: Hacker News@[email protected]·2023-12-23 09:25publicDIY ventilation heat exchanger (2010) https://ecorenovator.org/forum/showthread.php?s=41c17447383e29b03903f4e0136e55be&p=5792 #ycombinator #erv #heat_recovery #hrv #DIY_ventilation_heat_exchanger #home_improvement #green #environment #energy #solar #wind #insulation
