In this series, I would like to show you how you can use a simplified calculation method to carry out hydronic balancing yourself, using a detached house as an example. For easy comprehension there is a 7-step instruction.
Table of Contents
Reasons for the “Hydronic Balancing DIY” series
Hydronic balancing is a mysterious myth for many people and when you ask how you do it, you usually don’t get a satisfying answer. Or what is much worse from my point of view, it is denied that it works. In this series I’ ll try to provide you with answers and also show you how I do hydronic balancing in existing buildings.
Tip: Here you can find information about hydronic balancing and an explanation of what it actually is.
Depending on the condition and existing technology in a building, the implementation for hydronic balancing is simpler or more complex. After an initial analysis, it is possible to determine at an early stage whether components on the heating system may need to be renewed or added. However, conversion measures on the heating system should always be carried out by a specialist tradesman.
In this series I try to show as many options as possible, so that the calculation is comprehensible for many applications. The hydronic balancing is not a myth and you will understand step by step on an example building, which actions are necessary to optimize a heating system hydraulically.
The example building
Our example building (Figure 1) is located in Saxony (Germany) and belongs to my brother Erik. The house was built in 1935 and renovated in 2005. The windows were replaced, facade and roof insulation was installed, and a gas condensing boiler was installed. Furthermore, new radiators with presettable radiator valves were installed in the building.
Hydronic balancing was not carried out during the refurbishment. The building has a heated area of about 100 m² and there are 11 radiators distributed in all rooms.
In the first step of the series you will get a first overview and a summary of the individual steps. Then you will work your way through to step seven. Do not be afraid, you can do it! 🙂
Overview of the “Hydronic Balancing DIY” series
Overview of the series:
- Hydronic Balancing DIY – Example for a detached house
- Hydronic Balancing DIY – Step 1: Fundamentals
- Hydronic Balancing DIY – Step 2: Heat Load Calculation
- Hydronic Balancing DIY – Step 3: Data Collection
- Hydronic Balancing DIY – Step 4: Calculate the Radiator Power Output
- Hydronic Balancing DIY – Correction: Floor heating or floor heating?
- Hydronic Balancing DIY – Step 5: Calculate volumetric flow rate
- Hydronic Balancing DIY – Step 6: Presetting the radiator valves
- Hydronic Balancing DIY – Step 7: Calculate heating pump
Related articles outside the series:
- What is hydronic balancing?
- How do Thermostatic Radiator Valves work?
- Calculation of old radiators in stock
- What does a hydraulic balance cost?
Important: Before you start with the instructions for hydronic balancing, I would like to point out that the working methods described here are based on my personal experience and my personal thought processes. Trying out and implementing the described procedures is entirely at your own responsibility and risk. I do not take any responsibility. Furthermore, I recommend that you always have the calculated values checked by a specialist company or an engineering office. Because even if the way described here seems simple, calculation errors can creep in again and again.
I wish you a lot of fun with the realization of your hydronic balancing.
Further links and sources:
Great site with lots of tips and tricks on hydronic balancing: hydraulischer-abgleich.de
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