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Introduction to DWHR » Meander Heat Recovery
http://www.meanderhr.com/technical
Drain Water Heat Recovery or DWHR is the use of a heat exchanger to recover some of the heat from the drain water from activities such as dish-washing, clothes washing and especially showering. This is also referred to as water heat recycling, grey water heat recovery, or sometimes shower water heat recovery. Shower setup, no DWHR installed, with example temperatures. Shower setup, DWHR installed, with example temperatures. DWHR makes a lot of sense, considering that domestic drain water still carries a ...
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Installation Alternatives » Meander Heat Recovery
http://www.meanderhr.com/technical/dwhr-installation-options
There are three ways of installing a DWHR system, depending on how the preheated cold water is used. The preheated water can be plumbed into both the mixing valve of the shower and into the cold water supply of the water heater. In this case the flow of the drain water is equal to the flow of the cold water through the DWHR system. This is called a balanced-flow setup and gives the best performance in terms of energy savings. It also requires most plumbing and installation effort and cost. Sign up and re...
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DWHR Categories » Meander Heat Recovery
http://www.meanderhr.com/technical/types-of-dwhr-system
The DWHR systems commercially available for domestic use can be divided into the following four groups:. Vertical (tubular) DWHR system. Shower platform with integrated heat exchanger. The second type of DWHR system, shower platform with integrated heat exchanger, is not as common. They can be used whenever the vertical DWHR is not possible to install. They are typically more expensive and not as effective as the vertical systems. Shower platform with integrated DWHR. The fourth type of DWHR uses an insu...
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Our Story » Meander Heat Recovery
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Initial handmade heat exchanger design by Arthur. Svein Medhus has always been working on saving energy. For several years he has been blogging about projects he has carried out to make his family house more energy efficient. With his blog, he was hoping to multiply the overall savings by inspiring others to start similar projects ., One morning there was a very inspiring E-mail from blog reader Arthur. It made up the blog post DIY-heat-exchanger-for-your-shower. Sign up and receive the report!