Air jams in the underfloor heating system cause individual circuits to heat poorly or not at all, the floor heats up unevenly, and the boiler and pump work less efficiently. Fortunately, in most cases, it is possible to de-air the circuits yourself using standard fittings on the collector, without professional automatic air vents.
It is important to understand how the system works and properly prepare the installation for the procedure. If you have a complex facility, do not have access to all the elements, or you are not sure of your skills, it is better to entrust the de-airing and maintenance of underfloor heating to professionals. In Minsk and the region, this can be done by ordering a plumbing service through santehnikm.by .
Preparation of the underfloor heating system for de-airing
Usually, a water underfloor heating is performed as a system with a collector. Distribution manifolds are installed on the main heating line, from which separate loops are laid in the floor screed. In a typical house, there is one set of collectors (supply and return) on each floor, located in a collector cabinet.
In modern, well-designed systems, the collector is located on the same floor that it serves, which facilitates maintenance and de-airing. However, sometimes, for the sake of aesthetics or for other reasons, the collector for the contour on the ground floor can be moved, for example, to the basement.
The nuances of the de-airing procedure depend on the location of the collector, and in practice we most often have two cases:
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The collector is located at the same height (floor) as the contours of the underfloor heating or higher;
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The collector is located lower than the underfloor heating hinges themselves (for example, in a basement with a warm floor on the first floor).
Before starting work, it is necessary to:
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Make sure that access to the collector is free;
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Check the serviceability of shut-off valves, air vents and drain valves;
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Check the current pressure in the system using the pressure gauge.
If you are not sure about the configuration of your underfloor heating or do not know where the collector is located, it makes sense to call a santehnikm plumbing specialist.
They will help you understand the system layout and prepare it for safe maintenance.
Method 1: de-airing when the collector is on the same floor with underfloor heating
In this case, the procedure is relatively simple, and the circulation pump of the underfloor heating system and air vents on the collector are used as the main "tool".
Step-by-step algorithm:
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Turning on the pump at maximum speed.
We set the underfloor heating pump to the highest
