Installation of heat recovery units in Barcelona:
Energy-efficient ventilation for modern homes
In the context of modern construction in Barcelona, where energy efficiency has become not just a trend but a legal requirement, installing a heat recovery unit is the most sensible solution. HVAC Barcelona (www.hvac.barcelona) specialises in the design and installation of supply and exhaust ventilation systems with heat recovery, helping residents of the Catalan capital to create a healthy microclimate at minimal electricity costs.

What is a recuperator and why is it needed in Barcelona?
A recuperator is a device that provides a supply of fresh air and extracts stale air, without mixing them, but exchanging thermal energy. In winter, the warm air coming out of an apartment in Gràcia heats the cold air coming in from the street. In summer, the opposite process occurs: the cool air from the air conditioner is transferred to the hot street air.
Why is this critical for our region?
Savings on air conditioning and heating: Barcelona has some of the highest electricity rates in Europe. A recuperator allows you to recover up to 90% of the heat or coolness that would normally just escape out the window when ventilating. This reduces the load on your aerothermal system or air conditioner.
Combating humidity and mould: Barcelona's high humidity often leads to black mould appearing in the corners of rooms, especially in older buildings. A heat recovery unit provides constant, controlled air exchange, maintaining optimal humidity levels (40–60%) all year round.
Acoustic comfort: Barcelona is a noisy city. Installing a heat recovery unit allows you to keep your windows closed and enjoy the peace and quiet in areas such as Eixample or Sants, while breathing fresh air as if you were on a terrace.
Types of recuperators we install
HVAC Barcelona specialists select equipment based on the type of your property:
Centralised systems: Powerful units that are usually installed behind suspended ceilings or in utility rooms (galleries) of new buildings in Diagonal Mar. Air ducts run from them to all rooms.
Decentralised (wall-mounted) recuperators: The ideal solution for finished renovations in Barcelona. This compact device is installed directly into the wall through a through-hole. It does not require the installation of ducts and is ideal for improving the climate in a bedroom or nursery.
Enthalpy recuperators: A special type of device that recovers not only heat but also moisture. This prevents the air from becoming too dry in winter, which often happens when using traditional heating.
Specifics of installation by HVAC Barcelona
The installation of a heat recovery unit requires precision and engineering calculations. We follow a strict algorithm:
Air flow design: We calculate the balance between supply and exhaust air to prevent excess pressure or vacuum from building up in the apartment.
Diamond drilling: When installing wall models in areas with thick stone walls (Ciutat Vella), we use equipment for impact-free diamond drilling with dust extraction. Your finish will remain intact.
Noise insulation: We use flexible silencers and vibration-isolating mounts to ensure that the system is completely silent, even at night.
Fine filtration: Barcelona's smog and pollen will not enter your home. We install G4, F7 or even carbon filters to neutralise odours from the street.
HVAC Barcelona has all the licences required in Spain to work with ventilation systems. We guarantee professional installation, an official warranty and follow-up service (filter replacement, heat exchanger cleaning).