Why choose Avenir Renovations?
Why choose a hydraulic radiator?
The hot water radiator, or hydraulic radiator, is powered by a central heating network. The hot water produced by a boiler or a heat pump circulates through the body of the radiator, which releases it as gentle and constant heat.
An even heat distribution
The hydraulic radiator allows for a balanced distribution of heat in each room, without drafts or drying out the air. It offers a natural thermal comfort, particularly pleasant in winter.
A sustainable and economical solution
The operation by water circulation helps to limit energy consumption, especially when combined with an efficient boiler or a heat pump. Moreover, hydraulic radiators have a long lifespan and require little maintenance.
An adaptable system
The installation of hydraulic radiators is compatible with existing boilers, as well as with the most modern systems. If you replace your heat generator, you can keep the existing network by adapting the emitters if necessary.
What types of hydraulic radiators to install?
The choice of radiator depends on several factors: room size, ceiling height, existing insulation, and heat production source.
Installation in an existing or new heating system
The installation will depend on the configuration of your home:
- In renovation, we can replace your old radiators or create new distribution points while keeping the main network.
- In new construction, we size the complete system (boiler power, pipe diameter, flows, balancing) to optimize overall thermal efficiency.
What is the price for installing hydraulic radiators?
The installation cost varies depending on the type of radiator, the complexity of the project, the connection to the existing network, and the number of emitters to install or replace.
Factors to consider
- Type of radiator (steel, cast iron, aluminum)
- Power in watts and dimensions
- Connection work to the water circuit
- Removal of any old radiators
- Hydraulic adjustments and filling
Average prices observed in Belgium
| Type of hydraulic radiator | Average price including tax (supply + installation) |
| Horizontal steel radiator 1200W | 350 to 500 € |
| Decorative vertical radiator | 600 to 850 € |
| Retro cast iron radiator | 800 to 1,200 € |
| Connection to existing network | 150 to 300 € per point |
| Replacement of old radiator | Additional 100 to 200 € |
| Connected thermostatic valves | From 80 to 200 € each |
A precise, free, and non-binding quote is established after a technical site visit.
Why call on Avenir Rénovations Belgium?
Our expertise guarantees you a tailored support and a quality installation, carried out according to the rules of the art:
- Personalized thermal study
- Choice of the most suitable radiators for each room
- Installation ensured by certified heating engineers
- Compliance with Belgian standards (pressure, purging, balancing)
- Aesthetic and functional finishes
- Maintenance and usage advice
Integration into an energy renovation project
The installation of hydraulic radiators makes perfect sense when integrated into a global energy renovation:
- Condensing boiler, heat pump, or hybrid system
- Insulation of walls, roof, or floor
- Intelligent temperature control
- Replacement of valves with connected thermostatic heads
These coordinated actions allow for a significant improvement in energy performance, reducing bills, and increasing the property's value.
Financial aid available in Belgium
The installation of hydraulic radiators may be eligible for renovation aid, as long as it accompanies:
- The replacement of the heat generator
- A comprehensive renovation (heating + insulation)
- The energy compliance of the property
Applicable regional grants
- Housing Grant in Wallonia
- Renolution in Brussels
- Mijn Verbouwpremie in Flanders
Our advisors help you prepare the complete administrative file, with technical documents and compliant invoices.
Request your free quote for the installation of hydraulic radiators
Are you considering installing or replacing your hot water radiators as part of an energy renovation or to improve your comfort? Trust Avenir Rénovations Belgium for comprehensive support and professional installation.
Contact us today to schedule a free visit and receive your detailed quote with no obligation.
FAQ – Hydraulic radiators and energy renovation in Belgium
Is a hydraulic radiator suitable for an energy renovation?
Yes. The hydraulic radiator is one of the most efficient heat emitters when properly sized and connected to an efficient energy production system, such as a condensing boiler or a heat pump. It provides a gentle and constant heat, ideal for renovated homes with enhanced insulation.
Can existing hydraulic radiators be retained in a comprehensive renovation?
In some cases, yes. If the radiators are in good condition and compatible with the new heat generator (for example, a low-temperature boiler), they can be retained. However, to maximize energy performance and obtain grants, it is often recommended to replace them with low-temperature models, which are better suited to new requirements.
Does the installation of hydraulic radiators qualify for financial aid?
Indirectly, yes. The Belgian regional grants (Wallonia, Brussels, Flanders) do not fund radiators alone, but they cover overall heating systems (boiler, heat pump, distribution). Thus, the installation of new hydraulic radiators in this context is considered in the eligible expenses.
Our teams assist you in integrating this intervention into a comprehensive energy renovation file.
What is the difference between a classic radiator and a low-temperature radiator?
The low-temperature radiator operates with water heated between 35 and 50 °C (compared to 65 to 75 °C for classic models). It is ideally paired with a heat pump or a condensing boiler. It consumes less energy while providing equivalent thermal comfort, provided the home's insulation is effective.
Can each radiator be regulated separately?
Yes. It is recommended to equip hydraulic radiators with thermostatic valves, or even connected valves that can be controlled remotely. This allows for precise temperature regulation in each room, scheduling, and achieving up to 15% energy savings.
