Vent floor heating


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Vent floor heating

For many it is a luxury to be able to walk barefoot or sock through the house day after day, yet feel a cozy sensation of warmth on their feet.
But what if the floor heating just does not work?
If it comes to the floor heating that a heating circuit does not heat or only partially, it is probably due to air, which is included in the heating circuit.
To get these air bubbles out of the heating circuit, the floor heating should be vented. The process of venting a floor heating, however, includes not only the venting itself, but also from filling and rinsing. In this context, it is essential to bleed each heating circuit individually. This is the only way to ensure even and optimal heat in all rooms.
Small air bubbles with "great effect"
Since there may be air bubbles, especially at the beginning, but also in the pipes, it is not enough to open the vent plug on the manifold. For venting the floor heating are called
first both ball valves closed at the distributor flow and return. With the handwheel located on the return manifold, all heating circuits are closed. With the help of a dispensing valve, a water hose is connected to the KFE cock of the flow distributor.
Also on the KFE cock of the return manifold is a water hose mounted, the end of which should reach into a drain, as the water will flow out of the heating circuit. The first and
the second heating circuit are now opened one after the other and flushed until no more air escapes. It is important to make sure that each heating circuit is flushed separately, otherwise the air can not be forced out.
Energy saving through regular venting
When filling the heater, special care must be taken that the system pressure does not become too high. Basically 2.5 bar should not be exceeded. As soon as this limit is exceeded, the safety valve can open, resulting in the escape of excess heating water. In addition, it should be avoided to vent the floor heating when there is a risk of frost.

Video Board: How to draught-proof ducted in-floor heating vents.

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