The guide · Heat pump
Heat pump in Luxembourg: air, ground or pellets, how to choose
Replacing a boiler with a heat pump is supported, but not every house lends itself to it in the same way. Here is what the building must allow, what separates air from ground, and where to cost your support.
2
grants to simulate
Is it right for you?
The scheme suits you if…
Yes if
- Your heating still runs on oil or gas
- Your home is already insulated, or will be right after
- You have an outdoor spot or a plant room
To check
- The temperature your radiators run at
- Space and neighbours for the outdoor unit
- The electrical power available at the meter
Look at this instead
Is your house poorly insulated? Start with the insulation guide: the heat pump will be better sized, and cheaper.
How it works
Taking heat from outside to bring it inside
A heat pump does not produce heat, it moves it. It captures energy present in the outside air, in the ground or in groundwater, and brings it up to the temperature of your heating circuit.
That is why it gets on well with underfloor heating, which works at low temperature, and less well with old radiators set very hot. The question is not the Luxembourg climate, it is the temperature of your circuit.
The outdoor unit makes noise and takes up space: its position is decided with the installer, looking at the property line and the neighbour’s windows. Mechanical ventilation with heat recovery often completes the installation in a well-sealed home.
Head to head
Air, ground or pellets: the head-to-head
| Compared on | Heat Pump Quote (Heat Pump) | Geothermal Energy Quote (Geothermal Energy) | Pellet Boiler Quote (Pellet Boiler) |
|---|---|---|---|
| What it brings | Heat from the outside air | Heat from the ground, stable year-round | Heat from a wood fuel |
| What you need | An acceptable outdoor location | Ground accessible for drilling | A storage room and access for delivery |
| The works | Short, no earthworks | Heavy: borehole or buried collectors | Replacement in the boiler room |
| What changes day to day | Nothing to refuel | Nothing to refuel, very little outdoor upkeep | Fuel deliveries and ash to manage |
| The limit | Efficiency drops in severe cold | The cost and footprint of the works | It needs space, and it needs attention |
The figures, at source
What the support covers, and where to price it
We show no amounts on these pages, and that is deliberate: a copied scale becomes wrong without warning its reader. The official tool is updated at source; that is where amounts, ceilings and conditions are to be read.
- What is covered: the machine, its integration into the circuit and the removal of the old boiler
- Who pays: the State, and sometimes your municipality
- When: before signing, check whether a step is expected ahead of the works
The simulator does not show? Open the official calculator (opens in a new window)
The information published here is indicative and does not commit Wedo. It describes public schemes whose rules, conditions and amounts change over time.
For any figure and for filing an application, the official pages of Klima-Agence and of your municipal administration are what count.
Pre-financing
Not having to advance the subsidy
Pre-financing exists today for solar photovoltaic systems, with or without a domestic battery. The Klimabonus subsidy is then deducted directly from the final invoice by the installer, instead of being paid out later by the State.
You choose an installer listed in the register
The scheme only works with an installer entered in the register of installers eligible for pre-financing, kept up to date by the Ministry of the Economy. That is the first thing to check, before signing anything.
The installer files the application for you
The application for aid is filed by the installer on behalf of the beneficiary, not by you. On your side, you fill in a mandate form which the installer sends to the Ministry of the Economy.
The subsidy appears on the final invoice
The subsidy and every down payment already made must be clearly stated on the final invoice and deducted from the total. The down payment the installer may ask of you before that invoice is capped, and the cap is given on the official page.
Who can benefit. The beneficiary is the owner of the residential building, or the person holding immovable property rights on it. In a co-ownership, it is the managing agent or a co-owner appointed by the general meeting. A business whose activity requires a business permit is precluded.
The full conditions, deadlines and caps are on Guichet.lu, the official source, and that is the link to open before signing.
Before you sign
Five points to check
The temperature of your heating circuit
A heat pump is at its best on a low-temperature circuit. Before quoting, the installer measures the flow temperature your radiators actually need on a cold day. That single reading decides the machine, the emitters and part of the budget.
Location and noise of the outdoor unit
The unit breathes, so it needs clearance, and it makes a sound at night. Its position is settled on site with the property line and the neighbour’s windows in view, never on a plan alone, and never behind a closed enclosure.
Sizing, on an insulated house
An oversized machine short-cycles and wears out; an undersized one falls back on its electric heater. Sizing is done on the insulated house you will have, not on the one you have today, if the work follows straight after.
Maintenance contract and parts
Ask what the annual visit covers, how long spare parts remain available, and who answers in the middle of winter. A heat pump lives for years: the after-sales service is part of the purchase, not an extra.
The quote: removal of the old boiler included
Removing and disposing of the old boiler, and where applicable neutralising the oil tank, belong in the quote, line by line, along with the hydraulic connection, commissioning and the balancing of the circuit.
Finding the tradesperson
Who installs heat pumps in Luxembourg
The companies
Heat Pump: the verified companies
They all have a verified profile: each has an active subscription on the Wedo platform and meets our eligibility criteria.
wohlwert
Verified
11, Zone artisanale um Lënster Bierg, L-6125 Junglinster
Visit website
Chauffage et Rénovation de Salle de bains à Junglinster
Opening hoursClosed
Mon-Fri: 07:30 - 15:30 · Sat: 10:00 - 17:00 · Sun: Closed
Reckinger Alfred
Verified
9-11, ZARE Ouest, L-4384 Ehlerange
Visit website
Heating - Sanitary - Ventilation - Air conditioning - Electricity in Ehlerange
Opening hoursClosed
Mon-Fri: 08:00 - 12:00, 13:00 - 18:00 · Sat-Sun: Closed
Cool Concept
Verified
35, Rue J-F Kennedy, L-7327 Steinsel
Visit website
Air conditioning, Solar panels, Refrigeration and ventilation
Opening hoursClosed
Mon-Fri: 08:00 - 12:00, 13:00 - 17:00 · Sat-Sun: Closed
Team Schramm
Verified
16, Z.A.E. Le Triangle Vert, L-5691 Ellange
Visit website
Heating, Sanitary, Refrigeration, Electrician and Photovoltaic Installer in Ellange
Opening hoursClosed
Mon-Thu: 08:00 - 12:00, 13:00 - 17:00 · Fri: 08:00 - 12:00, 13:00 - 16:00 · Sat-Sun: Closed
Aquatechnic
Verified
7, Rue de l’Industrie, L-3895 Foetz
Visit website
Heating, sanitary and refrigerating installer in Foetz
Opening hoursClosed
Mon-Fri: 08:00 - 12:00, 13:00 - 17:00 · Sat-Sun: Closed
C. Schanen
Verified
26, ZAC Klengbousbierg, L-7795 Bissen
Visit website
Heating, Sanitary and Refrigeration Installer
Opening hoursClosed
Mon-Fri: 07:30 - 12:00, 13:00 - 16:30 · Sat-Sun: Closed
See every company in the Heat Pump speciality Ordered by number of Google reviews.
Across the country
Heat-pump installers near you
The directory covers the whole of Luxembourg, with 101 localities listed. Specify yours for the closest results. Browse the artisan directory
Frequently asked questions
Heat pump: the questions we are asked
Yes, the models fitted today are sized for the country’s climate. The real question is not the cold, it is the insulation: a house that loses its heat forces the machine to work harder, and that is where the bill goes wrong.
Not systematically. It all depends on the temperature your circuit runs at today. An installer checks it during the site visit, before quoting: it is the first item of a serious quote.
Air is simpler and cheaper to install; the ground is steadier and more discreet, but calls for a plot and heavy works. The table above puts them side by side, and the geothermal companies can tell in one visit whether your plot is suitable.
Its removal and disposal are part of the job. Ask for them to appear in the quote, together with the treatment of the oil tank where applicable: these are items too often discovered afterwards.
No. Wedo is the directory and quote platform of the Fédération des Artisans. Grants are processed and paid by the Luxembourg State and, where applicable, by your municipality. Our role stops at the tradesperson: we connect you, free of charge, with the companies in the directory.
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