We have been doing many temperature measurements and flow tests on our DWHR prototypes. This information has now been combined and together with our design team we have completed our first 3D drawing of the shower heat exchanger. Coldwater connects to the ½” fittings, and the graywater connects to the two 40mm drain pipes. We started out with 32mm drain pipes, but our market research indicated that there is a change going on in favor of the larger diameter.
The unit is designed to be placed on your bathroom floor underneath your shower cabinet. The drain water flows through the heat exchanger and pre heats the cold water.