Laundry waste water heat reclamation

Matt F.

Hi .
I am looking into reclaiming the waste water heat from a small 3- machine commercial Laundry. I would Pre-heat the cold water feeding the Hot water tanks..I have to pump the waste water to the sewer from a sump , and i'm wandering about some kind of heat exchanger that the waste water would pass through before entering the sewer...surface area is a key to pick up as much heat as poss.
Does any one have any Ideas or suggestions on this?
Or any web sites i can look up?

Thanks
Matt

kevin coppinger_4

Google..

GFX heat exchanger...kpc

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Constantin

Kevin is right...

... the GFX heat exchangers are the only legal game in town, unless you want to roll your own. They have a lot of good info on their site, so that is where I'd start.