Hot water production with solar energy and auxiliary heating from the central heating system and/or an electric heating element
The solar collectors heat the tank via the lower built-in heat exchanger. In summer weather the system is 100% solar-heated. Where necessary auxiliary heat is provided by an electric heating element (E, E1), or by the central heating system via the upper built-in heat exchanger.
- solar collectors: 200GA flat plate collector or 12VTN/16VTN evacuated tube collector,
- mounting kit for flat or sloped roof,
- storage tank
- ST (200-400 litre freestanding, two heat exchangers)
- solar station: circulation pump, ball valve with built in reflux valve, volume flow measurement/setting 1-13 l/min, safety valve 6 bar, bleed valve, pressure gauge 0-6 bar, filling-draining tap (2), connection to expansion tank, stainless flexible feed pipe, bracket, solar regulator (3 sensors, differential regulation, auxiliary heating input from boiler, heat boost, pump speed control, system cooling, tube collector function, etc.),
- expansion tank.