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Replacing a boiler in Brussels: no new oil boilers, and gas limits from 2030

Since 1 June 2025 no oil boiler may be installed in Brussels, even as a replacement, and any new or replaced heating needs a PEB reception. From 2030 gas boilers are banned in heavy renovations, not in an ordinary replacement.

Brussels · Subject to change

Sources checked on · next check by . Check the source before you act.

HeatingLevel 4 · RenovationCost: €2,500–25,000Weeks or months

Since 1 June 2025 no oil-fired boiler may be installed in Brussels, whatever the works and including a simple boiler swap that needs no planning permit. This is not a ban on using the boiler you have: an existing appliance may stay in service as long as it meets current standards.

Whenever a heating system is installed or replaced, with or without a permit, it needs a PEB reception, a check by an approved professional.

Gas rules depend on the works and on when the planning permit application is filed:

  • New homes, and renovations treated as new: no gas or oil boilers for permit applications filed from 1 January 2025.
  • Heavy renovations: no gas boilers for permit applications filed from 1 January 2030. In a building with several homes this applies only when all of them are new or heavily renovated.
  • Simple renovations and works without a permit, such as replacing a gas boiler on its own: the official page lists no gas boiler ban, only the oil ban and the PEB reception.

One extra rule for flats: before an atmospheric (type B1) gas boiler on an existing shared chimney is replaced, a feasibility report on more efficient options is needed.

Details

ImpactIndirect · This saves no energy by itself: it is a rule, a service, a contract, or a health or safety item. How we rate impact
Estimated savingRules on which boilers may be installed; they save no energy by themselves. (confidence: low)
Who actsYou (owner)
Needs landlord's agreementNo
TypeRules explained

Do this together with

Sources

  1. Objectifs PEB pour chaque logement et exigences PEB en cas de travaux (in French) · Bruxelles Environnement (official source) · checked on
    Backs: no oil boilers from 1 June 2025, also for works without a permit; PEB reception when installing or replacing heating; no gas or oil boilers in new or assimilated homes for permits filed from 1 January 2025; no gas boilers in heavy renovations for permits filed from 1 January 2030, in collective projects only if all units qualify; no gas ban listed for simple renovations or works without a permit; replacing a boiler can be done without a permit
    Where: sections 'Exigences pour les travaux avec permis d'urbanisme' (logement neuf, rénovation assimilée à du neuf, rénovation lourde, rénovation simple), 'Exigences pour les travaux sans permis d'urbanisme' and 'Travaux avec ou sans permis d'urbanisme ?'
  2. Chauffage et eau chaude sanitaire - Nouvelles réglementations (in French) · Homegrade (official source) · checked on
    Backs: existing appliances may stay in use if they meet current standards; a feasibility report is needed before replacing an atmospheric (B1) gas boiler on an existing collective chimney
    Where: sections 'Interdiction de placer des installations au charbon, au mazout et/ou au gaz' and 'Interdiction de placer des installations au gaz de type B1 (atmosphérique)'

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