Why Water Quality Is Crucial for Your Central Heating System

20 July 2026

In building management, water quality plays a crucial role in the proper functioning of systems. Water is the foundation of every central heating system and directly affects comfort, performance, and operational continuity. If the water composition is not optimal, scale, corrosion, and contamination can occur. This leads to higher costs and increased maintenance.

Risks Associated with Poor Water Quality

Various substances occur naturally in central heating water. If these are not properly managed, problems can arise.

Limescale and sludge deposits reduce the efficiency of heat exchangers and lead to higher energy consumption.

In practice, this can lead to efficiency losses of up to 15%.

Corrosion and Consequential Damage

Corrosion poses a significant risk within systems.

This can result in damage, leaks, and system disruptions. Aluminum heat exchangers, in particular, are susceptible to damage when water quality does not meet the specified requirements.

Microbiological Contamination and Susceptibility to Malfunctions

Microorganisms can grow in systems, leading to contamination and an increased risk of malfunctions.

In addition, filters become contaminated more quickly, and reliability decreases.

Insight as the foundation for effective management

Analyzing water quality and conducting water scans provides insight into the condition of systems.

This enables targeted management and maintenance.

A systematic approach and continuity

A structured approach ensures that a system continues to function reliably.

This results in:

fewer malfunctions
lower maintenance costs
longer service life
improved energy performance of the building

Are you looking for an independent inspection partner?

Normec offers expert and independent inspections for safe buildings, systems, and facilities.

Laboratory glassware, including measuring cups, pipettes, and test tubes, submerged in water and visible in a testing or analytical setting.

29 Apr 2026

Proposed Legislative Amendment on Legionella: What’s Happening and What Can You Expect?

The rules for Legionella prevention may change. Here’s what we know so far. A development is underway in Legionella prevention that may lead to changes in legislation. This process has been ongoing for about five years and is based on evolving scientific insights. One of the potential major changes is a shift in focus from broad-based Legionella sampling to a more targeted approach focused on Legionella pneumophila. Understandably, this raises questions. What direction is this heading in, and what might this mean for organizations working to ensure safe water? At Normec Aquaserva & Kalsbeek, we are closely monitoring these developments. In this article, we share the most important insights currently available.