Everything you need to know about the inspection of heating installations
Heating installations are a vital part of heating systems in both residential and industrial settings. To ensure safety, efficiency, and environmental friendliness, regular inspections of heating installations are legally required under Belgian law, including the Royal Decree of 8 December 2011 and regional regulations such as VLAREM in Flanders, the Brussels Air, Climate and Energy Management Code, and the Walloon Decree on Energy Efficiency.
What is a heating system inspection?
A heating system inspection is a mandatory check that ensures the system operates safely, efficiently, and in an environmentally friendly way. During the inspection, it is verified whether the installation meets legal standards and whether optimal combustion is achieved.
Why are these inspections mandatory?
To prevent risks such as carbon monoxide poisoning and fire
To ensure the system runs efficiently and does not waste unnecessary energy
To comply with emission standards and minimise environmental impact
Which heating systems require inspection?
All heating systems with a capacity of 20 kW or more
Systems powered by gas, heating oil, or solid fuels
Both residential and industrial systems
How does a heating system inspection work?
An inspection is carried out by a certified technician and includes several steps:
Preparation
The technician checks the technical documentation of the system
The system is cleared of any obstructions and prepared for inspection
Inspection points
The technician checks the following:
Flue gas discharge: Leak tightness and proper functioning
Combustion: Flue gas measurements to verify efficiency and emission levels
Technical condition: Wear, rust, or other damage
Safety systems: Testing of pressure relief valves, thermostats, and other safety devices
Reporting and certification
After the inspection, you receive:
A detailed report with the findings
A certificate if the installation complies with legal requirements
Recommendations for repairs or maintenance if needed
How often must a heating system be inspected?
(For central heating systems only)
Oil boilers (>20 kW): Legally required annual maintenance
Gas boilers (>20 kW): Legally required maintenance every two years
Fossil fuel boilers (>300 kW): Required emission measurements every five years by an accredited lab
Timely inspection and maintenance are essential to comply with regulations and minimise risks.
Why choose Artion for your heating system inspections?
At Artion, we offer:
Complete peace of mind: Artion ensures timely inspections by one of our certified inspection partners
Comprehensive reporting: Clear and transparent reports with recommendations, so you always know the inspection status of your installations
Time savings: With Artion, you only need to act on certificates with comments or violations. ‘A-certificates’ require no action
Focus on liability: Artion provides a clear overview of all installations requiring attention, helping you prioritise and stay fully compliant
With Artion, you choose reliability, quality, and worry-free inspections.
Frequently asked questions about heating system inspections
Why is an inspection important for my system?
An inspection ensures your system operates safely, meets environmental standards, and performs efficiently.
Who is authorised to carry out an inspection?
Only certified technicians who meet legal requirements are allowed to perform inspections.
What happens if my system doesn’t comply?
If your system does not comply, you will receive a report listing the required actions. You are legally obliged to correct these issues before a new certificate can be issued.
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