Heating oil or gas in Belgium: which one actually costs less
A costed comparison of heating oil against natural gas in Belgium: real cost per kWh on 15 September 2026, the VAT gap, excise duties, regional bans and conversion payback.
Quel Fournisseur Énergie
Blog 2026
Independent guides, comparisons and reviews from Quel Fournisseur Énergie.
Blog
42 articlesContrats & tarifs
Gaz naturel
Carbon monoxide detectors in Belgium: choosing one and placing it right
CO alarms are not compulsory in any of the three Belgian regions, and 9 of 10 models tested by the FPS Economy failed the EN 50291-1 standard. The real trigger thresholds, the right rooms, and the yearly cost of protection.
Électricité
Single-phase or three-phase: the difference, and what it costs in Belgium
Single-phase, three-phase 3x400V+N, three-phase 3x230V without neutral: Belgium's three connection types, their real kVA capacity, the cost of switching, and the Flemish capacity tariff effect.
Gaz naturel
Ideal Heating Temperature, Room by Room
Ideal room-by-room temperatures in Belgium, where the 7 % per degree figure actually comes from, and what one extra degree costs at August 2026 gas prices.
Contrats & tarifs
Gas or electric heating: which one actually costs less in Belgium
Gas is three times cheaper per kilowatt-hour, and that settles nothing. The cost per kWh of heat after efficiency, the SCOP 2.9 threshold, the annual bill for five systems, and the three regional frameworks.
Fournisseurs
Distribution network operator or supplier: who does what
You choose your supplier, never your grid operator. Who does what, who to call, and how much 2026 network tariffs cost in Wallonia, Brussels and Flanders.
Électricité
Measuring your electricity use: which device to choose
Plug-in wattmeter, smart plug or a monitor on the P1 port: the three families of devices, payback calculated at the Belgian kWh price, and how to activate P1 with each grid operator.
Fournisseurs
Energy Supplier Bankruptcy in Belgium: What Happens and What to Do
Your energy supplier goes bankrupt: you will not be cut off, but you switch to a last-resort supplier at a noticeably higher rate. Here are the deadlines, your rights over advance payments and the steps to take.
Gaz naturel
Converting gas m³ to kWh: the Belgian converter and the method behind the figure
Convert your gas m³ into kWh, and back again, using the official Belgian coefficients. Free tool, formula explained, high- and low-calorific gas, reference table and estimated cost.
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