Frequently asked questions

With any electronic heat meter you can display the current and annual consumption by using the following key combination: press the top button twice and the bottom button once to access the menu. Level L0 shows you the current consumption, level L1 the annual consumption. You can switch from level to level using the top button, and move within the level using the bottom button. To switch from a level back to the menu, press both buttons simultaneously.

With the generation of devices from 2016 onwards, reading has been simplified even further. After you press any button, the display shows the current consumption, the meter reading date and the metering date value in a loop. It is repeated ten times. A display test separates the display of the current value from the metering date value (annual consumption value).

Heat meters are used to measure the energy consumption of central heating systems or connections to district heating networks. They are installed directly in the pipe network of the heating or cooling circuit. In homes they are used, for example, in underfloor heating systems.

In accordance with § 9 (2) of the Heating Costs Ordinance, since 1 January 2014 heat meters have also been mandatory in Germany for hot water separation, i.e. separate energy measurement for hot water production.

In addition, heat meters are useful for measuring the energy of heat pumps and solar thermal systems in order to comply with funding guidelines.