Heating rod for buffer storage as heating support

Heating rod and buffer tank - is that even possible?

As the operator of a wood heating system, you will be wondering at first what a heating rod is supposed to do in the buffer storage tank. You are normally very familiar with the general task of your buffer storage tank in your heating system.

• The buffer storage should ensure that your heating material is burned effectively, i.e. usually wood in the case of wood heating. Since wood burns down in different phases, the buffer storage is able to, in the times when the heater not all energy lose weight, store heat and release it again later.
• In addition, in most wood heating systems, the buffer storage tank is used to transfer heat to the hot water system.
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• A heating rod in turn serves to remove the medium that surrounds it, in the case of the buffer tank, that is waterto warm up. Since your storage tank is heated up by the wood heating system, a heating rod is superfluous at first glance.
• As a wood heater, you have probably already had your experience with heating in summer. Actually, it is warm or hot enough not to have to heat. The temperature and the air pressure often ensure that the wood heating has a bad draft in summer.


Buffer storage for wood heating - useful information about the combination storage

If you want to heat effectively with wood heating, you need ...

• It would not only be convenient, it would also save wood and time if the warm water were heated by a heating rod in summer.

The selection of the heating element for your storage tank

When in doubt, as with all other building services equipment, it is helpful to seek advice from a specialist in advance when choosing the right heating element.

• With wood heating in particular, you should be sure that the specialist you are looking for is also familiar with wood heating. Experience has shown that not every heating specialist is familiar with the peculiarities of wood heating with buffer storage.
• Think carefully about what you want to achieve with the use of the heating element.
• First and foremost, you should make sure that the heating power of the heating rod is sufficient to completely heat up the buffer tank without having to spend the whole day. Otherwise the energy consumption could become too high.
• Be sure to compare heating elements from different suppliers with regard to their performance and the energy required for them. There are immense differences here.
• It is very important that you choose a heating element that has the right thread. Otherwise the costs will go up too much with the additional parts required.
• Note that water may have to be drained from the heating system in order to install the heating element. For this reason, it is not advisable to do this in winter.
• Think about the future energy consumption of the immersion heater and calculate what costs can be expected in return. Compare these costs with the benefits you get from using the heating element in the buffer storage tank. This benefit cannot be expressed exactly in terms of money. First of all, there is time savings, savings in wood and heating costs. The saving in wood can be converted into money and compared with the expected energy costs. The remaining savings can only be booked under the heading "Luxury". This means that you have to weigh very carefully in advance how much the advantages of the immersion heater are worth to you.