recover the heat of the waste water from the shower using an exchanger to preheat the cold water which arrives at the bath heater.
the "double flow CMV" of the sanitary.
should be profitable in professional use.
In private use, I doubt it: very expensive.
http://www.ehtech.fr/?q=principe
http://www.ladepeche.fr/article/2011/11 ... haude.html
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What does this project consist of?
It is a device that captures the heat of the water discharged during our shower and is used to preheat the cold water supplied to the water heater. This cuts energy consumption by four. To give an idea, with each shower, you lose as much energy as if you opened a window in the middle of winter for an hour. With this recovery process, the used water leaves at a temperature of 38 degrees and there is 34 water in the exchanger, so almost nothing is lost.
How did this idea come to you?
By watching a program on the insulation of certain houses. We were talking about the double flow VMC, a system that uses the heat present in the home to heat the incoming fresh air. We had the idea of applying this system to water. Handicrafts have already existed since the XNUMXs, but they were not sufficiently viable ecologically and economically. Through hard work, our team managed to make the project viable.
What does the product look like?
It is a box of ten kilos and the size of a shoebox. It is a very compact recuperator, which can be added to an already existing system.
When will ecoRC be available?
Since the end of January, we have been selling it via our website at a price of 1 euros for a recuperator that cuts energy consumption by four. For the moment, our customers are self-builders. It is only a niche, but it allowed us to have feedback on the product and to deepen uses that we had not thought of. In total, the team and its 100 partners have invested 10 euros in research and development. Today, the ecoRC is entering its commercialization phase, which is why we are looking for partners.
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