Buffer tank 2-in-1

An accumulation buffer for central heating two-in-one is a compact device used for storing and exchanging thermal energy as well as preparing hot water for domestic use.

Accumulating heat in the buffer supplied from a heating device and transferring it to the heating circuit ensures the heating function of the central heating installation, while simultaneously heating domestic hot water. Accumulation tanks 2-in-1, depending on the model, can service up to several heating devices, thanks to the coils used in the buffer without the need for hydraulic couplings or external heat exchangers.

Accumulation tanks 2-in-1 are modern and compact solutions for heating installations, combining the function of a heat buffer and hot water storage in one device. Thanks to this, one tank ensures efficient heat storage for central heating as well as heating domestic water. In our offer you will find LEMET HPDS 2-in-1 buffers, LEMET, Joule Cyclone and PROSAT 2-in-1 buffers, as well as combined tanks hot water + buffer Galmet SG(K) Complete and PROSAT PIK DUO SB, which work with heat pumps, guaranteeing comfort, energy savings and simple installation in modern installations.

2-in-1 heat pump tank – convenience and savings in one

2-in-1 accumulation tanks, also called 2-in-1 buffers, combine the function of a central heating buffer and hot water storage tank in one device. Thanks to this:

• you store excess heat in the heating system,

• you reduce energy consumption,

• you shorten the wait time for hot water,

• you save space in the boiler room.

This solution is ideal for single-family homes, apartments and small commercial facilities, especially in systems with heat pumps, condensing boilers or hybrid installations.

Available 2-in-1 buffers and combination tanks

We offer a wide range of models adapted to various installation needs:

• LEMET HPDS 180/80 and 250/100 2-in-1 Buffers – compact and efficient solutions that integrate the heat buffer function and hot water tank.

• Joule Cyclone Tank in Tank 200/90, 250/90, 300/90 ErP C – innovative water heaters with coils, working with heat pumps, guaranteeing precise water heating and energy accumulation.

• Galmet SG(K) Complete 250/135 combination tank – combination hot water + buffer tank, perfect for heat pumps and modern installations, ensuring simultaneous water heating and heat storage.

• PROSAT PIK DUO SB 240/160 combination tank – functional 2-in-1 buffer for heating systems with a heat pump, combining hot water comfort with heat accumulation for central heating.

Advantages of 2-in-1 tanks and combination buffers

✅ Compact solution – one tank instead of two separate devices
✅ Energy savings – heat storage reduces boiler or heat pump operation
✅ Quick access to hot water – instant availability of heated utility water
✅ Easy integration – compatibility with heat pumps, condensing boilers and hybrid systems
✅ High performance and durability – proven brands and solid materials guarantee reliable operation

Who are 2-in-1 tanks intended for?

• owners of single-family homes and apartments,

• heat pump users,

• installers looking for functional, energy-efficient solutions,

• investors who want to combine a heat buffer and hot water tank in one device.

Summary

LEMET 2-in-1 buffers, Joule Cyclone, PROSAT PIK DUO SB and Galmet SG(K) Complete hot water + buffer combination tanks are modern, energy-efficient and practical solutions for any boiler room. A 2-in-1 tank for a heat pump allows you to save space, energy and time while ensuring hot water comfort and stable operation of your entire heating system.

Choose the right 2-in-1 tank and enjoy full control over the temperature and efficiency of your heating installation. Save money, increase the accumulation independence of your heating system by combining multiple heating systems and storing their heat.