Efficient heating operation does not depend solely on the heating system. Hydraulic balancing is crucial for optimal heat distribution. But why are there two processes — A and B — and which is the right one for your system?

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What is hydraulic balancing?

The hydraulic balancing is a method for optimizing a heating system. The aim is for all radiators in the building to be evenly supplied with heat. This reduces energy consumption and heating costs. The flow rate and radiator valves are precisely adjusted so that the heat output is efficient and tailored to requirements.

Hydraulic adjustment is carried out in accordance with the DIN EN 12831 standard, which regulates the requirements and processes for the proper adjustment of heating systems. This standard ensures that the process is standardized and implemented efficiently.

Why are there different methods for hydraulic balancing?

The development of methods A and B for hydraulic balancing is based on the different requirements of heating systems and building types.

Originally, the reconciliation was carried out through theoretical calculations, as this method is fast and inexpensive. However, with the increasing complexity of modern heating systems and the desire for more precise results, an alternative became necessary. The result was method B, which is based on real measurements on site and was developed specifically for buildings with complex heating circuits or inaccurate initial data.

Both methods meet specific requirements, depending on budget, building type and technical heating equipment.

How do procedures A and B differ?

The two methods for hydraulic balancing differ fundamentally in their approach: While method A is based on theoretical calculations, method B uses real measurement data on site. These differences impact accuracy, costs, and areas of application.

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The following table shows the key differences:

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Method A — Method of calculation

Method A is a viable option for simple heating systems and budget-oriented projects. It makes it possible to fundamentally optimize the heating system, but it reaches its limits when it comes to complex or modern systems. If the theoretical calculation data is precise, this method can still provide a solid basis for hydraulic balancing.

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tactic

Method A is based on theoretical calculations based on the technical data of the heating system and the radiators. First, the heat requirement of each room is determined, usually by a Heat load calculation in accordance with DIN EN 12831. The necessary volume flows are then calculated, which are required to achieve the desired room temperature.

Based on these values, the radiator valves are adjusted so that the determined flow rates are maintained. As a rule, standardized tables and manufacturer information for the radiators are used to make the necessary pre-adjustments to the valves.

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accuracy

Method A provides sufficient accuracy for simple heating systems, particularly in older buildings. However, since no real measurement data is taken into account on site, accuracy depends heavily on the quality of the underlying calculations. Errors can occur when the Heat load calculation is inaccurate or the actual operating conditions differ from theoretical assumptions.

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Benefits of method A

• Cost-effective: Since no complex measurements or special equipment are required, the financial outlay remains manageable.
• Quick implementation: The adjustment of the radiator valves can be completed in a short time.
• Easy approach: No highly specialized expertise or expensive equipment is required.

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Disadvantages of method A

• Lower precision: Theoretical values may differ from real operating conditions, which may impair the efficiency of the system.
• Susceptibility to errors: Inaccurate calculation data or assumptions can lead to sub-optimal heat distribution.
• Not suitable for complex systems: In modern, energy-optimized buildings or systems with multiple heating circuits, accuracy is often insufficient.

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Method B — Measurement method

Method B is the most precise method for hydraulic balancing and ideal for buildings with high efficiency and heat distribution requirements. However, it requires higher financial and time expenditure. There is no alternative to this process for complex heating systems or energy-optimized buildings, as it enables maximum efficiency and long-term energy savings.

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tactic

In method B, hydraulic balancing is not carried out on the basis of theoretical calculations, but through real measurements on site. Specialists use special measuring devices to determine the flow rate and precisely determine the temperatures on radiators and heating circuits.

First, the existing settings of the radiator valves are checked, then the actual heating demand of each room is measured. Based on these measurement data, the radiator valves and other components of the heating system are adjusted to ensure optimum heat distribution. This process requires detailed documentation and precise calibration.

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precision

Method B offers a very high level of accuracy, as it takes into account the actual operating conditions of the heating system. Inaccuracies that may occur during theoretical calculations are ruled out by on-site measurements. This makes the process particularly suitable for complex heating systems and buildings with varying heat requirements.

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Benefits of method B

• High precision: The on-site measurements take real conditions into account, which results in a very accurate heat distribution.
• Flexibility: The method is also suitable for complex or older systems where theoretical data is not sufficient.
• Long-term efficiency: The precise setting ensures optimum heating output and maximum energy savings.

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Disadvantages of method B

• Higher costs: The use of measuring devices and the longer execution time make the process more expensive than method A.
• Time-consuming: Measurements and adjustments require more time and careful planning.
• Dependence on professionals: Specialized knowledge and high-quality equipment are required, meaning that the process cannot be carried out by yourself.

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When does method A make sense?

Method A is useful for simple heating systems with few heating circuits, particularly in older buildings where basic optimizations are sufficient. It is suitable if heating load calculations or technical data are already available. It is also a quick and cost-effective solution. For less complex systems, the accuracy of the theoretical calculations is usually sufficient.

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Can I carry out procedure A myself?

Process A can usually be carried out yourself, provided that basic technical knowledge and the necessary data, such as heating load and radiator information, are available. However, it is important that the calculations are carried out precisely and that the valves are correctly adjusted. However, for optimal results and compliance with standards, it is recommended that you hire a specialist company.

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When does method B make sense?

Method B is particularly useful for complex heating systems with many heating circuits, as it provides precise results through real measurements and takes individual heating requirements into account precisely. It is often used in energy-efficient buildings or new buildings, where there are high demands on efficiency and sustainability. In addition, this method is ideal when inaccurate or missing calculations make the basis for hydraulic balancing difficult.

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Can I carry out procedure B myself?

Method B cannot be carried out by yourself, as it requires specialized measurement equipment and in-depth knowledge. The precise measurements of flow rates and temperatures as well as the correct evaluation and adjustment of the heating system must be carried out by trained specialists. This is the only way to guarantee optimal results.

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Which process is right for my heating system?

The right process depends on the complexity of your heating system and your requirements. Method A is ideal for simple, cost-effective optimizations in less complex systems. Method B is suitable for modern or complex systems that require high precision and maximum efficiency.

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