Finalized mold design of heat exchanger

Heat exchanger for shower with arrows We have seen some interest for branding the HeatSnagger,  so we decided to remove the Meander logo that was originally designed to be on the top lid. Instead we added arrows to guide installation of the unit. The arrows show how to connect the pipes to achieve counter flow of gray water and cold water. A counter flow heats the incoming coldwater 1-2 °C more than a parallel flow.