Klimabonus 2026 Luxembourg +352 20 60 22 22 Weber & Fils

Klimabonus 2026 in Luxembourg: heat pump, geothermal, hybrid, district heating. Amounts, eligibility, myenergy.lu file. Full support. ★ 4.6/5. +352 20 60 22 22

Klimabonus 2026: Luxembourg's heating grant programme

Klimabonus Wunnen is the Grand Duchy's financial aid scheme designed to accelerate the energy transition of homes. Run by myenergy.lu, it funds the replacement of fossil boilers (oil, coal, old gas) with renewable, high-performance solutions: air-to-water and geothermal heat pumps, hybrid systems, district heating connections, biomass boilers and solar thermal.

Grants are among the most generous in Europe: up to €16,000 for a heat pump replacing a fossil boiler, plus a Topup for low-income households of up to +50%. Weber & Fils, Made in Luxembourg certified, files the full Klimabonus dossier on behalf of clients.

Indicative 2026 amounts, source: guichet.public.lu and myenergy.lu. Always verify the rates in force at filing time.

Klimabonus 2026 amounts by technology

• Air-to-water heat pump: base grant €8,000, doubled to €16,000 when replacing a fossil boiler.
• Geothermal heat pump: up to €15,000.
• Water-to-water heat pump: up to €15,000.
• Hybrid heat pump (PAC + condensing gas): typically €3,500 – €6,000.
• District heating connection: up to 50% of the cost.
• Biomass boiler and solar thermal: dedicated grants under conditions.

The low-income Topup can lift these amounts by up to 50%. Cumulable with certain municipal grants and renovation aids (PrimeHouse).

Eligibility

1. Eligible home — house, apartment or building in Luxembourg, completed at least 2 years ago. 2. Compliant equipment — brand and model on the myenergy.lu list, certified seasonal COP, energy class. 3. Qualified installer — registered with the Chamber of Trades, F-Gas certified for heat pumps. 4. Filing deadline — within 12 months of the final invoice date. 5. Complete justifications — quote, invoice, installation certificate, product datasheet, removal proof of fossil equipment for the doubled bonus.

How Weber & Fils handles your file

The full file involves several hours of admin work and exact knowledge of in-force schedules. Weber & Fils handles the entire dossier at no extra cost: free simulation, Klimabonus-compliant quote, full file prepared after commissioning, online filing on myenergy.lu and follow-up until payment. Average payment delay: 3 to 6 months after a complete file is submitted.

Worked examples (indicative)

Example 1 — 130 m² house, oil boiler replaced by 10 kW air-to-water PAC. Total: €19,500 incl. VAT. Klimabonus: €16,000 (doubled). Net cost: €3,500. Annual savings: ≈ €1,800.

Example 2 — 220 m² villa, geothermal PAC 14 kW with drilling. Total: €36,000 incl. VAT. Klimabonus: €15,000. Net cost: €21,000. 25-year lifespan.

Example 3 — Older 160 m² home, hybrid PAC + condensing gas boiler. Total: €15,000 incl. VAT. Klimabonus hybrid: €4,500. Net cost: €10,500. See hybrid heating.

Why apply early

Schedules change every year and some grants may decrease for mature technologies. Lead times for heat pumps remain 4 to 8 weeks; install slots are tight from August to November. Plan 2 to 3 months ahead.

See also heat pump, hybrid heating or boiler replacement. Call +352 20 60 22 22.

FAQ

What is the maximum Klimabonus for a heat pump in 2026?

€8,000 base grant for an air-to-water PAC, doubled to €16,000 when replacing a fossil boiler. €15,000 for geothermal or water-to-water. The Topup can add up to 50%. Indicative 2026 amounts, source guichet.public.lu — confirm at filing.

Who can apply?

Any owner of a Luxembourg home completed at least 2 years ago who installs an eligible renewable heating system. Primary or secondary residence. Installation must be done by a Chamber of Trades registered company.

Do I have to pay everything up front?

Yes — the grant is paid after commissioning and a complete file. Average delay: 3 to 6 months. For projects over €15,000, Weber & Fils offers staged payment. Some Luxembourg banks offer green loans to bridge the wait.

Can it be combined with other aids?

Yes with renovation aids (insulation, PrimeHouse), some municipal grants and EV charging schemes. Not cumulable with another national grant on the same equipment.

What is the filing deadline?

12 months after the final invoice. Past that, the grant is lost. Weber & Fils typically files within 4 to 6 weeks of commissioning.

Is a hybrid PAC eligible?

Yes. Hybrid PAC has a specific grant based on the renewable share, typically €3,500 to €6,000. See hybrid heating.

Is replacing a recent gas boiler funded?

The doubled €16,000 bonus is reserved for replacing fossil boilers (oil, coal, old gas). A recent condensing gas boiler upgrade to a PAC qualifies for the base grant only. Weber & Fils checks eligibility case by case.

What if the file is rejected?

Weber & Fils prepares the file at no extra cost and follows myenergy.lu's strict requirements. Additional document requests are handled at no extra charge. Outright rejection is rare and pre-checked before any commitment.