•There are no leaktightness issues to deal with, as the collector is no longer in-roof;•The solar system installer no longer needs roofer training –plumbing skills are all that is needed;•The installation is a modular design making for convenient trans-port and handling;•The modules are fastened onto the gutter channel via fixturesthat are invisible from ground-level (Fig. 4). Module tilt can beadjusted to fit each installation configuration;•The inside workings of the installation complete with tubing andstorage tank is identical to the current generation of home solarwater-heating systems.