The energy storage tank - ROTEX HybridCube®

Hot water and solar storage tank

The heart of the HPSU system is the heat storage tank which stores the heat obtained and then transfers it to the heating system at the required time. We developed the HybridCube^® especially for the HPSU.

The ROTEX HybridCube^® is a corrosion-free, plastic hot water storage tank with stainless steel corrugated pipe heat exchanger which conducts the heat obtained particularly well. It is a combination of a hot water storage tank and a flow water heater with outstanding water hygiene properties for you and your family.

Our experience – for your health

Because of the way it is designed, the principle of the ROTEX HybridCube^® is optimal from a water hygiene point of view.

For 25 years now, ROTEX has been building hot water storage tanks according to this principle for the best possible water hygiene. With all storage generations the construction has been selected so that the heated domestic water only stays in the storage tank for a very short period of time.
This prevents any deposits (limescale, sludge or rust) being formed in the domestic water. This means the HybridCube^® is absolutely maintenance-free and does not provide a breeding ground for germs.

The outstanding water hygiene advantages of this type of hot water storage tank were confirmed by extensive research carried out by the hygiene institute of Tübingen university.