Initial situation: high consumption in an apartment in Girona, Spain.
In the heart of Girona, the Martí-Clavé family lived in a 95 m² apartment equipped with electric radiators for heating and an electric water heater for hot water.
This system was not very efficient and was expensive: €1,400 per year in electricity consumption. In addition, thermal comfort was limited, with uneven heat in winter and a portable air conditioner for the summer that did not cover the entire house.
The objective of the energy reform was clear: to unify heating, cooling and domestic hot water in a single efficient, sustainable and more comfortable system.
The study: fan-coil air-conditioning as an integral solution
After analyzing the floor and its insulation level, an air-water aerothermal system with fan coils was recommended. This technology allows:
- Heating in winter and cooling in summer from a single unit.
- DHW production by means of a 150 l tank.
- Fast response to temperature changes, perfect for urban apartments with high occupancy.
- Estimated savings of 50% with respect to the previous electrical system.
In addition, the need for traditional radiators was eliminated, gaining useful space in the house.
Installation: fast and without complex construction work
In only 3 days, the installation was completed:
- Mitsubishi Ecodan 5 kW air-to-water heat pump with high efficiency and low consumption.
- DHW tank of 150 l, sized to cover the needs of 2 people.
- 3 wall-mounted fan coils distributed in the living room and bedrooms, providing uniform and silent air conditioning.
- Removal of old electric radiators, freeing wall space.
The total investment was 12,000 €, with an option to benefit from the energy subsidies for energy subsidies for aerothermal energy and improve amortization.
Real results: immediate savings and comfort
After one year of use, the results were even better than expected:
- Reduction of the energy bill to 630 €/year (55% real savings).
- Immediate comfort: uniform warmth in winter and uniform coolness in summer.
- Quieter and more comfortable living thanks to low-noise fan coils.
- Elimination of radiators, gaining space in the house and a more modern aesthetic.
Additional benefits
- All-in-one system: heating, cooling and DHW in a single unit.
- Superior energy efficiency compared to electric radiators.
- Reduction of CO₂ emissions, contributing to sustainability in Girona.
- Low maintenance and long service life of the Mitsubishi heat pump.
Real testimony
“The change has been immediate: less expense, more comfort and no extra occupancy in the house. Now we enjoy heat in winter and cool in summer with just one system.”
– Laura Clavé, apartment owner
Summary of the case in figures
| Data | Result |
|---|---|
| Type of installation | Aerothermal + fan-coils |
| Aerothermal power | 5 kW |
| Previous consumption | 1,400 €/year |
| Actual savings | 770 €/year |
| Investment | 12.000 € |
| Amortization | 6 years |
Do you want to improve the efficiency of your apartment in Girona? Ask for a free energy study and find out if the aerothermal with fan-coils is the best solution for your home.
