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A steel buffer tank for heat pumps is used to temporarily store heating water and add extra system volume to the installation. This helps the heat pump operate more steadily and can reduce cycling in systems with varying heat demand.
At Hewa, you will find steel buffer tanks for heat pumps, heating systems, wood boilers, pellet boilers and combined heating installations. When selecting the right tank, check volume, connections, maximum operating pressure, insulation, temperature class, installation location and the hydraulic layout of the system.
Brands
BURNiT PSM 80 - Buffer Tank (80L)
Item no. 124080EAN 8721225900228
Price excl. VAT€ 297,48Price incl. VAT€ 359,95
Op nalevering
Added
BURNiT PS 300 - Buffer tank (300L)
Item no. 124300EAN 8721225900242
Price excl. VAT€ 660,33Price incl. VAT€ 799,00
Op nalevering
Added
BURNiT PBM 1000 - Buffer tank (1000L)
Item no. 124100EAN 8721225900280
Price excl. VAT€ 867,73Price incl. VAT€ 1.049,95
In stock
Added
BURNiT PS 500 - Buffer tank (500L)
Item no. 124500EAN 8721225900235
Price excl. VAT€ 742,98Price incl. VAT€ 899,01
Op nalevering
Added
Eldom BCWS2 500K80 - Buffer tank with tap water coil and 2 heat exchangers (500L)
Item no. 144582EAN 8808563519418
Price excl. VAT€ 1.569,42Price incl. VAT€ 1.899,00
Op nalevering
Added
Tesy V30065F41P4 – Buffer Tank (300 L)
Item no. 031300EAN 5940000008307
Price excl. VAT€ 660,33Price incl. VAT€ 799,00
In stock
Added
Tesy V50075F42P4 - Buffer tank (500L)
Item no. 031500EAN 5940000008314
Price excl. VAT€ 785,12Price incl. VAT€ 950,00
Op nalevering
Added
Tesy V100099P4 – Buffer Tank (1000 L)
Item no. 031000EAN 5940000008338
Price excl. VAT€ 908,26Price incl. VAT€ 1.099,00
Low stock
Added
Selecting a steel buffer tank for a heat pump
A steel buffer tank is used to add extra water volume and heat buffering to a heating system. With heat pumps, sufficient system volume is important for stable control behaviour, steady flow and fewer unnecessary switching cycles. In heating systems, wood boilers and pellet boilers, a steel buffer tank can also help distribute and temporarily store heat more effectively.
The correct choice depends on volume, capacity, connection sizes, maximum operating pressure, insulation, installation location and the hydraulic function within the system. Always check whether the buffer tank matches the heat source, pump, heat distribution system and intended installation layout.
Important when choosing steel buffer tanks
- Match the volume to heat pump capacity, system volume and heat demand
- Check connection sizes, connection positions and available installation height
- Check maximum operating pressure, temperature class and insulation value
- Choose a version that matches the heat pump, boiler, wood boiler or pellet boiler
- Check whether the tank is suitable for closed heating systems
- Consider venting, draining options and service accessibility
- Have sizing and connection assessed by a qualified installer
Steel buffer tanks within the installation
Steel buffer tanks are mainly suitable for closed heating systems in which heating water is stored. When material choice or corrosion resistance is particularly important, a stainless steel buffer tank for heat pumps can be an alternative. For installation, connection and service, buffer tank accessories are also relevant.
A steel buffer tank must be correctly integrated into the hydraulic installation. Its position in the system, flow, pipework and control setup determine whether the tank actually contributes to stable operation of the heat pump or heating installation.
Frequently asked questions about steel buffer tanks
What is a steel buffer tank used for?
A steel buffer tank is used to temporarily store heating water and add extra system volume to a heating installation. This can support smoother control behaviour and greater hydraulic stability.
Is a steel buffer tank suitable for a heat pump?
Yes, a steel buffer tank can be suitable for heat pumps, provided the volume, connections, operating pressure and hydraulic layout match the technical requirements of the installation.
What is the difference between a steel and stainless steel buffer tank?
A steel buffer tank is often used in closed heating systems. A stainless steel buffer tank may be useful when corrosion resistance, material choice or specific project requirements are particularly important.
What volume should a steel buffer tank have?
The correct volume depends on heat pump capacity, system volume, minimum water volume, heat distribution system and desired operation. Sizing should always be assessed technically.
What should an installer check during installation?
Check connection position, flow direction, venting, draining, insulation, operating pressure, installation location, service accessibility and the documentation of the heat source and buffer tank.