When installing a new heat pump or boiler, ensuring the quality of the water in your heating system is essential. It is essential for both long-term performance and efficiency.

Here’s what we do to make sure your system water is in the best possible condition and why it matters for the health of your system.

What We Do for Your System Water

At the end of every installation, we thoroughly flush the system and clean all filters. We then fill it with demineralised water following the German Water Quality Standard VDI 2035. This is known for its high standards but isn’t commonly used in the UK. By going the extra mile, we provide better protection and performance for your heating system.

Why Is Demineralised Water Important?

Using demineralised water in your system offers several benefits:

  1. Prevents Corrosion and Scaling: Lowering the water’s conductivity (the ability to conduct electricity) helps prevent metals from reacting with each other. This reduces corrosion. It also keeps salts and minerals from building up in your system’s heat exchangers or pipes which avoids the scaling that can reduce efficiency.
  2. Maintains the Right pH Levels: The acidity or alkalinity of the water (pH level) plays a big role in how your system will perform. If the water is too acidic or too alkaline, it can damage certain metals, especially aluminium. We make sure the pH is neutral, so your system stays protected.
  3. Limits Oxygen Content: Oxygen in the system water is a major cause of corrosion. We ensure your system is sealed to keep oxygen levels low. This helps prevent rust and other damage. Regularly adding fresh water with high oxygen content can lead to corrosion, so this should be avoided.

Regular Testing to Keep Your System Healthy

Testing the water quality in your system every year during service is crucial. This lets us see if anything has changed, such as the presence of new corrosion or a drop in water quality. If necessary, we can take action before any serious issues arise, such as flushing the system to clean it out.

Why Use Demineralised Water Instead of Chemicals?

Many systems rely on chemical inhibitors to slow down corrosion. However, they don’t always reveal what ingredients are in them. Instead of continuously adding chemicals to control corrosion, we start by filling your system with the cleanest, purest water to prevent it from happening in the first place.

By maintaining the best water quality from the start and testing it regularly, we help protect your heating system, ensuring it runs smoothly and efficiently for many years.

 

If you are interested in a renewable heating system for your home, contact us today for helpful technical advice.

VDI 2035 System Water Quality