Heating a Swimming Pool with an Air Conditioner's Waste Heat
This Old House · Tutorial · YouTube title: How to Heat a Swimming Pool with an Air Conditioner | Ask This Old House
Why it's here
HN cites it as a practical demonstration of reusing AC waste heat, in threads about heat recovery.
What it covers
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.