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The aim of hydronic balancing is to ensure that all heating circuits of the underfloor heating system are evenly supplied with heating water. This ensures that the system temperatures are maintained over the entire area and that the heating system can work efficiently. The German Building Energy Act even stipulates that all devices in a heating system must be hydraulically balanced. The Multibox RTL has a special thermostatic head to simplify hydraulic balancing. We have summarised detailed information on the procedure in a PDF.
PDF Hydronic balancing
FLEXIRO radiant heating systems are installed in accordance with the Tichelmann principle. The heating circuits are designed so that they have identical pipe lengths. For circuits with shorter flow pipe, the return pipe must be extended accordingly to ensure that the total pipe lengths remain comparable. This prevents shorter heating circuits from receiving more heating water and longer heating circuits with higher pressure resistance from heating up less.
With the thin 10 mm pipes, hydraulic resistance is more important than with conventional pipe diameters. To ensure that the retrofitted underfloor or ceiling heating system functions reliably with most heating systems and connection scenarios, the length of the heating circuits has therefore been limited to 30 m plus supply. The equal length of the heating circuits ensures optimum hydraulics. Hydraulic balancing is generally no longer necessary. The disadvantage is that the pipe lengths must be aligned with the longest heating circuit.
We are a manufacturer of components for ceiling heating systems. We cannot provide planning or installation services. In individual cases, however, we can put you in touch with an HVAC installation company. If you send us the key details of your modernisation project, we can match the location with our database of installers.
You are a HVAC company and would like to install FLEXIRO sets? Please get in touch with us.
The weight of the ceiling heating with plastic pipe is 9.05 kg/m² when filled with water. The copper pipe variant weighs 12.58 kg/m².
Gluing tiles onto plasterboard when using drywall panels as wall heating is possible without any problems. The manufacturer's instructions must be observed. Double planking may be advisable when using heavy tiles. Tiles are suitable as a surface for wall heating in the bathroom or kitchen due to their good thermal conductivity.
In most cases, it is possible to install wall heating in drywall construction on an existing plasterboard wall. A second layer of plasterboard can be glued on using gypsum blocks. Apply the gypsum blocks at 30-40 cm intervals. The additional planking should be installed offset from the first layer. The joints must not overlap. Please note, due to their outer diameter of 22.5 mm connectors require a corresponding cavity into which they can be inserted.
Technical Data Sheets
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Technical data - Low profile wet underfloor heating kitHeating capacity for different surface materials and other technical information188 KB
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Technical data sheet drywall underfloor heating kitHeating capacity and other technical information116 KB
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Technical data sheet ceiling heating kit drywallHeating capacity and other technical information110 KB
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Technical data - Ceiling heating kit with copper pipeHeating capacity and other technical information146 KB
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Technical data - Ceiling heating kit plasterHeating capacity and other technical information221 KB
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Technical data sheet dry construction wall heating kitHeating capacity and other technical information110 KB
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Technical data sheet plaster wall heating kitHeating capacity and other technical information218 KB
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Technical data - Wall heating plasterboard with copper pipeHeating capacity and other technical information144 KB
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