Flanders
Maintenance
Each boiler with a nominal capacity ≥20 kW must be inspected periodically. This maintenance must be carried out by an certified technician who cleans the flue and the boiler itself, including the burner and flue gas regulator:
Once every 2 years for gas boilers
Every year for oil-fired boilers
Once the maintenance has been completed, you are issued a certificate which you must keep safe until the next inspection.
Audit
For installations consisting of a single boiler with a maximum capacity of 100 kW, an audit is compulsory when the boiler is 5 years old, and then every 5 years. If the installation consists of multiple boilers, the audit must be carried out by a technician accredited for heating audits.
For installations with a capacity of more than 100 kW or multiple boilers, the legislation is stricter than for a system with a single boiler. The audit must be carried out:
Once every 2 years for oil installations;
Once every 4 years for gas-fired installations (natural gas, propane, butane);
By a technician accredited for heating audits.
An audit report must be drawn up on the basis of a programme set by the Flemish Government.
Discover our independent audit for your heating installation.
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