Water heating can take up nearly 20% of your home's energy usage. The Greenward Ridge Vent uses the entire roof as a heat collector to heat your water, but instead of having tubes over your entire roof, the Greenward tubes are installed just on the ridge.
And since you can cover the installation with the same shingles as the rest of the roof, there is no unsightly addition to your roof.
Heated water goes through a heat exchange and stores hot water in a tank that can then be drawn directly into your hot water thank.
