HackerTube / Video
How to Heat a Swimming Pool with an Air Conditioner | Ask This Old House
This Old House
A This Old House segment where Richard Trethewey installs a heat exchanger that uses waste heat from a central air conditioner to heat a swimming pool.
HN cites it as a practical demonstration of reusing AC waste heat, in threads about heat recovery.
3 Hacker News mentions · 2019–2026