Power-Pipe / Green Building & Sustainable Home Renovation Information & Advice

A  copper drain water heat recovery unit in a residential plumbing stack.
Hot water

Drain Water Heat Recovery: Efficient Energy Recycling

...Power-Pipe): The original industry leader with the widest range of lengths. They are the gold standard for energy code compliance and are a staple in almost every major Net Zero pilot project. GFX (Gravity Film Exchange): One of the earliest pioneers in the technology. While less common in modern residential retail, th...