Heat pumps and solar panels to reduce your home's consumption
Replace your gas or oil boiler with an efficient heating and hot water system.
At SolarTradex we jointly design the heat pump and photovoltaic installation to make better use of solar energy and reduce dependence on the grid.
Request a personalised study
The heat pump uses electricity to produce heating and hot water. When combined with solar panels, part of that energy can be generated directly in your home.
Cut gas or oil consumption
Replace your gas or oil boiler with a heat pump and reduce fossil fuel consumption and exposure to their price volatility.
Boost your energy efficiency
With 1 kWh of electricity you generate between 3 and 4 thermal kWh, drastically improving your home's energy efficiency compared to gas.
Unified heating and hot water
A single system manages all the thermal energy in your home: heating and hot water (DHW), with one unit and less maintenance.
Take advantage of solar production
Combine the heat pump with solar panels to heat your home with the energy you generate yourself, maximising savings.
Smart consumption control
Advanced monitoring that lets you adjust production, prioritise solar surplus and optimise consumption from a single platform.
At SolarTradex we offer a unique solution: the combination of heat pumps and solar energy. As Frederic Andreu explains: "with a gas boiler, 1 kWh of gas equals 1 thermal kWh. With a heat pump, 1 kWh of electricity generates 3-4 thermal kWh. And if we combine it with photovoltaics covering 50% of consumption, every 1 kWh you buy becomes 7-8 thermal kWh. That's the beauty of a heat pump".
Replace your old boiler
We study the insulation, existing emitters and thermal needs of your home to determine whether a heat pump can replace your current gas or oil system. The solution integrates with underfloor heating, fancoils or compatible emitters.
Already have solar panels?
We analyse the current production and surplus of your photovoltaic installation to integrate the heat pump and assess whether it's necessary to add more panels. This way you make the most of the solar energy you already generate.
Don't have solar panels yet?
We design both systems together so the number of panels takes into account heating and hot water consumption. A single installation optimised from day one to maximise savings.
We study the current heating system, existing emitters, insulation and energy consumption.
2. We prepare a personalised proposal
You'll receive the recommended heat pump design and, where applicable, integration with photovoltaics, with the estimated savings and quote.
3. We install and configure the system
Our team carries out the installation of the outdoor unit, indoor unit and the connection to the existing emitters.
4. We handle commissioning and incentives
We prepare all the documentation to start up the system and access CAE, personal income tax deductions and applicable bonuses.
Drastically reduce the cost of your heat pump installation by combining the current incentives in Catalonia and the Balearic Islands. At SolarTradex we handle the study, processing and full management so you can access the maximum available tax benefit.
- Personal income tax deduction up to 60% (RDL 7/2026): the new Royal Decree-Law allows deductions of up to 40% for flats and 60% for detached homes for energy refurbishment, especially when combining heat pumps + photovoltaics.
- Energy Savings Certificates (CAE): direct discount applied to your quote thanks to the certified savings from replacing gas or oil with a heat pump. System managed by OMIE.
- Municipal bonuses on property (IBI) and construction tax (ICIO): most councils in Catalonia and the Balearic Islands apply bonuses of up to 50% on IBI for 3-5 years and up to 95% on ICIO for projects with renewables.
- FACTOR 2026 programme · Balearic Islands only: regional call with specific grants for heat pumps, photovoltaics, batteries and charging points.
Why choose SolarTradex
✅ In-house technical team (more than 50 people)
✅ Specialised in-house engineering (50% of the team are engineers/economists)
✅ Experience in the solar sector since 2010
✅ Full project management: no subcontracting, no intermediaries
✅ Regular trainers at the Association of Industrial Engineers of Barcelona and Lleida
Frequently asked questions
Can a heat pump replace my boiler?
Yes, in most cases. We study the insulation, existing emitters and the home's thermal needs to confirm that a heat pump can replace your current gas or oil system.
Can I install it if I already have solar panels?
Yes. We analyse the current production and surplus of your photovoltaic installation to integrate the heat pump and assess whether it's necessary to add more panels.
How much can I save?
Savings depend on the heating and DHW (Domestic Hot Water) system you replace, but on average you can reduce the energy cost by between 30% and 70%. The key lies in the COP (Coefficient of Performance): for every 1 kWh of electricity consumed, aerothermal energy generates between 3 and 5 kWh of thermal energy.
Estimated savings depending on the system replaced:
- Compared to a natural gas boiler: 30-50% savings on your energy bill.
- Compared to diesel or propane: 40-60% savings.
- Compared to conventional electric heating: 50-70% savings.
These savings can be drastically multiplied if aerothermal energy is combined with a residential self-consumption solution: by powering it with the energy generated by your own solar panels, the operating cost can approach zero for many months of the year.
Can I keep my radiators?
The installation adapts to both a newly built house and a renovation, replacing the existing boiler. As a diffusion system, previously installed elements can be used:
- Radiators (conventional or low-temperature).
- Underfloor heating, the most efficient option due to its low thermal gap.
The integration is very simple and allows a considerable improvement in the home's energy efficiency.
Are there deductions or incentives?
Yes. Aerothermal energy is one of the technologies best positioned to access grants and tax advantages, precisely because of its official recognition as renewable energy and its high energy-saving potential. The main available routes are:
- Income tax deduction (RDL 7/2026): up to 40% in flats and 60% in single-family homes if the 30% reduction in non-renewable primary energy consumption is exceeded — something that aerothermal energy achieves practically by default when replacing a gas or diesel boiler.
- Energy Saving Certificates (CAE): direct discount applied to the project invoice by the installer, thanks to the certified energy saving of the system change.
- Municipal reductions: up to 50% on the IBI (property tax) and up to 95% on the ICIO (construction tax) in many municipalities of Catalonia and the Balearic Islands.
- Regional programmes: in the Balearic Islands, for example, the FACTOR 2026 programme includes specific grants for energy renovation with heat pumps.
Check the details of each route and see which are compatible with each other on our grants and subsidies page. Our team handles all the necessary documentation so that you can take full advantage of the benefits.
