Floor heating
A storey heating system is a heating system for generating heat for one storey or a residential unit (even if it is divided over several storeys).
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Due to the small footprint, a gas floor heating system in the form of a combination heating system is very often chosen, which is operated with natural gas and, in addition to the heating, also takes over the hot water supply . Forest heating was widespread in the GDR .
If the heat generation is only provided and used for heating, it is a circulating water heating system . The mostly wall-hung thermal baths only run when there is a need for heat; this is the case when the temperature controller of the heating system requests heat. The heating requirement is often accompanied by the provision of hot water. This is mostly done with a combi boiler , which, if necessary, primarily supplies hot water using the continuous flow principle and then switches back to heating mode. Another variant is a (gas) heating center, which is the combination of a thermal bath and a hot water tank. The heating operation runs on the principle of circulation via the thermal bath, which also keeps the storage tank at the set temperature. After the hot water has been drawn off, the cylinder is heated up again by the thermal bath.
Since the hot water supply in the flow principle requires a much higher heat output than the heating water supply, the connected load (heat load) of the combi boiler is greater than that of the therme for circulation operation. As a result, the combined heaters also generate more noise. In the less powerful circulating operation with storage, however, space must be available, which is rarely the case on one floor.
The devices are usually hung in the hallway, bathroom or kitchen and, because these rooms are small, require a combustion air network . This guarantees the necessary air supply for the thermal baths, which is ensured by slots in the doors to the adjacent rooms. If condensing boilers with an air / flue gas system are installed, the combustion air network is not applicable.
Advantages compared to the central heating system (e.g. gas heating)
- short cable routes and low transport losses
- In the tenancy, billing based on direct consumption
- low cost per device
- little space required thanks to compact, wall-mounted installation
disadvantage
- A separate device is required for each residential unit in apartment buildings
- higher maintenance costs than with a central system
- more complex integration of regenerative energy