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Waste water heat recovery


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7 minutes ago, Crofter said:

Edit to add: surely copper is adequately long lived, unless you're planning on showering in salt water or battery acid??

 

Good point. Even less reason to buy this one B|

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1 minute ago, dogman said:

Good find @Onoff makes it worth doing for £170. Not sap listed though

 

I really would have to look up what SAP means to be honest!

 

I just look at something and think could I do that different/better. Even if I can't or it fails. I'll invariably have a go even if it ends up costing me a few quid. Keeps the old grey matter ticking over.  Generally starts with looking at the shape of something and what's similar. With this I'm thinking about  a wine making airlock.

 

shopping.jpg

 

Ditch the top bit and fit a "cone" over the centre tube. Hot waste water goes in the top. Heat exchange coil goes around the outside to maximise surface area. "Cold", heat depleted water exits down the middle. 

 

:ph34r:

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