With Two Heat Exchangers

Triple-energy horizontal cylinders have two standard removable heat exchangers, so two independent circuits can work in the same tank. The usual setup is solar collectors on one heat exchanger and a boiler or heat pump on the other, with the electric element as a third source.

They suit hotels, apartment buildings and businesses that want to use the sun for high demand when the available height does not allow a vertical cylinder. Here too the tank is protected inside with epoxy.