5 ms·
That does exist. Simple versions just have a large, deep drain with coils the cold water runs through. Fancier ones have a proper heat exchanger next to the sho
by shellfishgene 6d ago
That does exist. Simple versions just have a large, deep drain with coils the cold water runs through. Fancier ones have a proper heat exchanger next to the shower (requires a pump) or in the basement. Water sanitation rules probably make it non trivial to get a design certified.
- gandreani 6d agoIs the deep drain to diminish the air pockets at the exchange surfaces?
- shellfishgene 6d agoIt's just so the cold water pipes sit in a pool of warm water. https://www.meanderhr.com/wp-content/uploads/2012/11/HXdrain-heat-recovery-shower-drain-heatexchanger.jpg https://www.meanderhr.com/wp-content/uploads/2012/11/HXdrain... This is even simpler: https://warmduscher.de/produkt/warmduscher-original/ https://warmduscher.de/produkt/warmduscher-original/