The number of commercially available buffer tanks is impressive. Our product overview aims to expand knowledge on this topic and also provides insight into the most modern devices that are designed to reduce the consumption of heat sources and the costs associated with heating buildings.
What is a heat buffer used for?
Before we discuss individual models of heat buffers, let's recall what they are and what they are used for? Heat buffers are a safeguard for hot water resources in the event that the heating source stops working. This allows for generating savings resulting from interruptions in the combustion of heating fuels or the use of a cheaper electricity tariff at specific times.
Modern designs of buffer tanks allow for connections to several heat sources, and it should be added that in addition to boilers, buffers also cooperate with heat pumps and solar collectors. It is therefore possible to use buffer tanks in buildings whose power supply is based on renewable energy sources.
Check out the heat buffers at the Onninen wholesaler
TOP 10 best buffer tanks
Buffer tank Roth Thermotank Quadroline TQ-T 500 L for heat pumps
The tank is equipped with a hydraulic clutch and an integrated charging system, which promotes optimal temperature distribution. Two sleeves allow for the installation of up to 4 temperature sensors. The tank does not require the use of an anode. It is possible to dismantle the EPS insulation. Energy efficiency class A.
Galmet SG (B) buffer tank black 1000 L
The tank can be supplied with demineralized boiler water from several sources. Depending on the tank capacity, the insulator is hard or soft, removable polyurethane foam. The insulation can be removed, 
leaving the tank protected only with anti-corrosion paint.
At the customer's request, the tank can be adapted to work with:
Heat pump;
Solid fuel boiler;
Gas boiler;
Renewable energy installation.
Drazice NAD 100 v1 buffer
The NAD buffer is used to store excess heat energy, thus optimizing the operation of the heat source. Insulation is provided by CFC-free rigid polyurethane foam. The tank is mounted in a stationary vertical or suspended position.
NIBE UKV 100 buffer tank
Due to its small dimensions, the tank can be installed in places with a small cubic capacity. An ideal solution for heat pumps, although cooperation with conventional boilers is not excluded.
The tank has four connecting stubs, two temperature sensor covers. Among other things, it allows for hydraulic separation of the heat source installation from the central heating installation.
BMG buffer tank hanging 80 L gray
The tank was designed mainly to work with heat pumps of the "hot-cold" type, but it is possible to use it with other heat sources used in central heating installations. The tank functions as a hydraulic clutch.
Galmet 100 L buffer tank
The tank is a perfect complement to heating systems with heat pumps and solid fuel boilers. Buffers have up to 9 hydraulic connections, which allows them to be connected in various configurations.
As standard, three sleeves are available for mounting sensor covers and draining the neutral medium (e.g. demineralized boiler water, glycol, etc.).
Galmet SG (B) buffer tank black 300 L, without coil
The tank is designed to store a neutral medium (demineralized boiler water, glycol, etc.). This is due to the fact that the buffer is devoid of a protective enamel layer. The buffer's operating pressure is a maximum of 3 bar (0.3 MPa). When coils are used, the allowable pressure value will increase to 6 bar.
Galmet SG (B) buffer tank black 500 L
Like the previous model on our list, the tank is designed for demineralized boiler water or glycol solution. Power can be supplied from several sources, and they can be connected independently of each other. The tank works with both the boiler and the heat pump.
Buffer tank for heat pumps with a capacity of 100 L Immergas
A relatively small tank that ideally complements a heating system based on a heat pump. Installation method – hanging. Protection is provided by a powder-coated coating.
Galmet 60 L buffer tank
One of the smallest tanks, which does not mean it is useless. It is designed for installation in small households. It stores thermal energy prepared by a boiler for solid fuels. The tank is equipped with 9 hydraulic connections and 3 mounting sleeves.
A properly selected buffer tank will optimise the intensity of operation of the heat pump or heating boiler and should be selected according to individual needs after consultation with the installer.