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Renov.lu · Luxembourg

Heat Pump Simulator Luxembourg

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This information helps calculate the required heat pump capacity

20,0°C
18°C (economic)23°C (comfort +)
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Why this information?
Precise sizing avoids an undersized heat pump (discomfort, premature wear) or oversized one (extra cost, reduced efficiency).
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Renov.lu Guide · Luxembourg Updated — July 2026

Heat pumps in Luxembourg: price, Klimabonus grants and payback in 2026

The Renov.lu heat-pump simulator computes the required power (kW), the installation cost, the 2026 Klimabonus grants and the savings versus your current heating. Here are the reference figures used in Luxembourg.

Heat-pump price

Heat-pump price by type (Luxembourg, 2026)
TypeInstalled priceSCOP
Air-to-water heat pump€18,000 – €38,0002.5 – 5.0
Geothermal heat pump€28,000 – €44,000≈ 4.2
Hybrid (heat pump + backup)€18,000 – €28,000
Pellet boiler€20,000 – €28,000

Klimabonus 2026 grants for a heat pump

Klimabonus heat-pump grants in Luxembourg, 2026
SchemeAmount
Air-to-water heat pump (base)€6,000
Geothermal heat pump (base)€8,000
Replacing a fossil boiler (oil / gas)+ €4,000
Adapting heat distribution+ €2,000
Removing an oil tank+ €1,500
Enoprimes (supplier bonus, heat pump)+ €1,500
Complementary municipal grantsup to +25% of State aid
Example: replacing an oil boiler with an air-to-water heat pump qualifies for about €15,000 in grants (incl. ~€13,500 from the State + €1,500 Enoprimes, tank removal included). With a geothermal heat pump the total reaches ~€17,000.

How the simulator works

  1. Describe your home: floor area, build year, insulation and emitter type (underfloor or radiators).
  2. State your current heating (oil, gas, electric) to estimate savings and the replacement bonus.
  3. Get your estimate: power in kW, cost, 2026 Klimabonus grants, payback and a free PDF report.

Frequently asked questions

How much does an air-to-water heat pump cost in Luxembourg in 2026?

Expect €18,000 to €28,000 for a residential air-to-water unit (up to €38,000 for high power). A geothermal heat pump costs €28,000 to €44,000.

What Klimabonus grants apply to a heat pump in 2026?

An air-to-water heat pump replacing an oil boiler qualifies for about €15,000, a geothermal one up to ~€17,000, plus Enoprimes and municipal grants (up to +25% of the State aid).

Is a heat pump worth it in Luxembourg?

Yes. With a SCOP of 3 to 5, 1 kWh of electricity (~€0.25/kWh) yields 3 to 5 kWh of heat. Versus oil or gas, payback is typically 7 to 12 years after grants.

What heat-pump power should I choose?

It depends on the building heat demand (kWh/m²/yr), floor area and insulation. The simulator computes the optimal power in kW.

Air-to-water or geothermal heat pump?

Geothermal offers a more stable SCOP (≈ 4.2) but costs more (€28,000 – €44,000). Air-to-water (€18,000 – €38,000) is more affordable and fits most well-insulated homes.

Does a heat pump work in an older house?

Yes, but with high-temperature radiators the SCOP is lower (2.5 to 3.7). Efficiency is best with underfloor heating or low-temperature radiators.

Can a heat pump replace an oil or gas boiler?

Yes, and replacing a fossil fuel adds a +€4,000 bonus, plus €1,500 for removing an oil tank.

Learn more: heat pump guide · heat pump grants · payback · COP / SCOP

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