Vaillant is a long-standing German heating manufacturer. Its aroTHERM range covers the air-to-water heat pump, and its boiler expertise makes it a specialist in hybrid heat pump + boiler solutions. wendows installs this equipment, fine-tunes it and remains your point of contact for the warranty and after-sales service.
Vaillant marries heat pump expertise with boiler expertise, an asset for gradual renovations. Here are the families we install most often in Belgium, sized to suit your home and your existing heating.
The aroTHERM air-to-water heat pump feeds radiators or underfloor heating and produces hot water. The heart of decarbonised heating, a direct replacement for a boiler.
Vaillant's home turf: the heat pump does the bulk of the heating, the condensing gas boiler takes over in deep cold. The ideal transition in renovation.
The aroTHERM pairs with a cylinder to produce domestic hot water efficiently, alongside the heating. A home decarbonised on both fronts.
The myVAILLANT app schedules time slots, tracks consumption and intelligently balances between heat pump and boiler in hybrid mode. Comfort managed from your phone.
Beyond the brand, it's the mastery of the heat pump + boiler pairing that distinguishes Vaillant. The key figures for these ranges, sized and tuned by our teams.
Vaillant covers air-to-water (aroTHERM) for all-electric heating and hybrid (heat pump + boiler) for a gradual transition. We choose based on the insulation and the existing heating.
The seasonal coefficient of performance (SCOP) reflects the real efficiency over a season. In hybrid mode, the control intelligently balances to optimise overall efficiency. The figure depends on the model and the sizing.
Manufacturer's warranty that can be extended depending on the model and the maintenance plan taken out. wendows handles the follow-up and intervention when needed.
The aroTHERM outdoor units are designed to stay discreet, with a quiet mode. Placement and anti-vibration mounting, handled at installation, matter as much as the quoted figure.
In a hybrid configuration, the boiler lets you reach high flow temperatures in deep cold, ideal for old radiators without underfloor heating.
Built-in control via the myVAILLANT app: scheduling, consumption tracking and hybrid balancing. Comfort becomes clear and easy to adjust through the seasons.
* Valeurs indicatives selon la gamme et la configuration. Les performances et garanties exactes dépendent du modèle, du vitrage et des dimensions — confirmées lors du métré.
A well-balanced hybrid solution calls for careful sizing and configuration. Approved by Vaillant, our teams calculate your home's needs, install to the manufacturer's standards and handle the warranty and after-sales service directly.
Vaillant isn't our only string. Depending on your home, your budget and your insulation, another brand may be a better fit. Compare, then we decide together at the study stage.
An overview of the heat pump brands we install in Belgium: air-to-water, air-to-air and hybrids, by use and by budget.
See all heat pump brands → vs VaillantThe Vitocal air-to-water from another big German name, premium and highly connected. A natural comparison between two benchmarks of German heating.
Compare with Viessmann → vs VaillantThe Alféa air-to-water and the thermodynamic cylinders from a French manufacturer. A recognised alternative for central heating and hot water.
Compare with Atlantic → by systemVaillant's home turf. Understand the heat pump + boiler pairing to place the hybrid offering before you choose.
All about the hybrid heat pump → by useBefore the brand, the system: understand air-to-water to place the aroTHERM in its all-electric version.
All about air-to-water heat pumps → budgetPrice benchmarks across all technologies and grants by region. To place a Vaillant project within your budget before the quote.
See prices & grants →When you replace your heating, you choose two things: a heat pump brand and an installer. Vaillant answers the first with a dual expertise: the aroTHERM heat pump and a long boiler heritage. That makes it a natural specialist in hybrid solutions, invaluable in renovation.
The aroTHERM range targets all-electric air-to-water for well-insulated homes. But Vaillant's differentiating asset is hybrid: the heat pump does the bulk of the heating, and the condensing gas boiler takes over in deep cold. The control intelligently balances between the two to optimise cost and comfort.
"Hybrid is the best of both worlds: the heat pump for efficiency, the boiler as a safety net in deep cold.
That's where our role as installer counts. We calculate heat loss, choose between all-electric and hybrid, size the right output and configure the balancing. We remain your single point of contact for the warranty, maintenance and after-sales service — myVAILLANT helps us intervene remotely.
Heat pump and boiler, controlled together. In hybrid mode, the Vaillant control automatically balances between heat pump and boiler to optimise cost and comfort at every moment.
On budget, Vaillant sits in the reliable German heating segment. Hybrid can mean a higher upfront investment, offset by a gentle transition without replacing everything. To place your project, start with our prices & grants page, then ask for a costed quote.
The price depends mainly on the all-electric or hybrid choice, the output and your setup — not just on the brand. Here are starting ranges for Vaillant installed by our teams, with grants deductible afterwards.
See the heat pump price & grant table →* Indicative ranges for a Vaillant heat pump installed, excluding specific configurations. A precise, costed estimate at your free quote.
Vaillant is a long-standing German heating manufacturer, with the aroTHERM heat pump range and recognised expertise in boilers and hybrid systems. As with any equipment, the final result depends as much on the sizing and the installation as on the brand.
It's a system that pairs the aroTHERM heat pump with a condensing gas boiler. The heat pump does the bulk of the heating; the boiler takes over in deep cold. The control intelligently balances between the two to optimise cost and comfort.
Often yes, especially if the home is moderately insulated or fitted with old radiators. Hybrid allows a gradual transition without replacing everything: you keep a safety net in deep cold while sharply reducing the fossil share of the heating.
The aroTHERM outdoor units are designed to stay discreet, from ~36 dB(A) depending on the model, with a quiet mode. Placement and anti-vibration mounting, chosen with you at installation, matter as much as the figure.
Depending on the model and the maintenance plan taken out, the manufacturer's warranty can be extended, sometimes up to 7 years. wendows handles the follow-up and intervention. The exact terms appear on your quote.
Budget from around €11,000 for an aroTHERM air-to-water heat pump installed and from ~€13,000 for a hybrid solution, depending on output and your setup. Heat pump grants and 6% VAT deducted afterwards.
Free on-site survey, recommended range, grants calculated, a single point of contact. Describe your project in under a minute.