x-buffer^® fresh

x-buffer fresh hot water storage tank.

High-performance storage tank for domestic water heating in conjunction with a heat pump. With its high-quality PU thermal insulation, the x-buffer fresh is assigned to energy efficiency class B. The x-buffer fresh is available in two sizes.

Highlights

Accessories

Documents and service

Tools and apps

Subsidy programme

Hot water storage systems

x-buffer fresh

x-buffer fresh hot water storage tank.

PU rigid foam insulation with PVC jacket
Storage with glass enamelling according to DIN 4753
Integrated magnesium sacrificial anode
Inspection opening
Heat exchanger for heat pump applications

Five-year system warranty

Five-year system warranty

The day is finally here – your new KERMI heating system, or perhaps a KERMI ventilation system, has been installed. There is now nothing to stop you feeling cosy at home. Our five-year system warranty is a testament to the quality of our products and our service promise to you.

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Installation video

The special layering process ensures optimum stratification of water layers at different temperatures within the KERMI x-buffer layered buffer storage tank.

This process, which has a patent pending, all but eliminates turbulence so that virtually no mixing of cold and warm water can occur. The water flows into the storage tank slowly and can rise or sink, depending on the temperature. Together with the high-quality all-round insulation, this significantly minimises energy losses.

The innovative housing design of the x-buffer layered buffer storage tank makes it a great space-saving alternative.

The system takes up no more room than a conventional heating tank. Thanks to the special base design, the tilt dimension (when the tank is tilted diagonally) barely exceeds the installation height. As a result, the x-buffer layered buffer storage tank also differs from conventional storage models in terms of its external appearance and is absolutely ideal for low-ceilinged rooms in existing buildings. With the intelligent arrangement of the connections, the x-buffer also fits through narrow doors.

Accessories

Fresh water station

The fresh water station for wall mounting is available in 4 different versions.

The electronically controlled hot water generation relies on the continuous flow principle, ensuring that hot water is heated as hygienically as possible and in line with demand.

The speed-controlled charge pump regulates the set tap temperature quickly and efficiently.

The Modbus interface for direct communication with the KERMI^® x-center^® control ensures maximum operating comfort via the heat pump control – optionally, up to 4 fresh water stations can be combined in a cascade

Fresh water station cascade set

A cascade set is needed for each additional fresh water station.

A maximum of four fresh water stations can be combined in total.

To install a fresh water cascade, you need a fresh water station with circulation to serve as the master; each additional slave station is then implemented without circulation.

Storage charging assembly

The storage charging assembly for wall mounting is available in different versions.

The integrated storage charging pump is speed-controlled (PWM) so that charging with the modulating x-change dynamic (pro) heat pump series can take place efficiently and in line with demand in every operating mode.

The components are pre-assembled on a platform and the insulation is already incorporated as well.

Heating circuit assembly

The “unmixed heating circuit” assembly consists of a circulation pump (delivery head of 6 m or 9 m) and the corresponding shut-off devices.

The “mixed heating circuit” assembly also has a mixer.

These components are pre-assembled on a platform and the insulation is already incorporated as well.