What is aerothermal energy?
Most of the energy is not produced but recovered from the environment.
To obtain heating, cooling, or hot water, the heat pump only requires a small amount of electricity consumption.
It is suitable both for new housing and for replacing conventional heating systems.
The heat pump is the main component in an aerothermal system.
General classification
Air-to-air heat pumps transfer the temperature to an air circuit (air conditioning).
Air-to-water heat pumps transfer the temperature to a water circuit (underfloor heating, low-temperature radiators, fan coils, etc.).
Systems with air-to-water heat pumps are more efficient and comfortable, that is why they are recommended and used by Energanova.
These types of air-to-water heat pumps are divided, in turn, into 2 categories, depending on the number of units integrating the equipment: monobloc and bibloc.
Depending on the maximum operating temperature, they can also be classified as high or low-temperature equipment.
These units include the entire refrigeration circuit in a single unit placed outdoors. They are usually bigger units with a lower installation cost.
The outdoor unit is responsible for capturing the energy from the air through a fan and an exchange coil, which acts as an evaporator in heating mode and a condenser in cooling mode.
The compressor is usually included in the outdoor unit, but it could also be placed in the indoor unit if the manufacturer and model allow so.
The operation of aerothermal energy consists in exchanging energy between the outside air and the emission system of our house.
When operating in heating mode, the heat pump captures energy from the outside, raises its temperature, and transfers it to the home’s heating system.
As well as providing domestic hot water all year round, the aerothermal system has the capability of heating a swimming pool to the swimming season.
The heat pump used for aerothermal energy can also be used for cooling.
To cool a house using aerothermal energy, the heat pump reverses the cycle. It “captures the heat” through the emission system and dissipates it to the outside through the condensing unit.
Up to 80% of the energy used by aerothermal systems can be retrieved from the environment, allowing the system to air-condition a home with significant savings over other methods such as thermal emitters or underfloor heating, and even around 50%-60% over a conventional system).
The pump’s compressor consumes very little electricity since the energy extracted from the air is free.
Providing heat in winter, cool in summer, as well as hot water throughout the year, aerothermal is the solution to your heating, cooling, and hot water needs.
Aerothermal energy systems are very efficient. For every 1 kW of electricity it consumes, it delivers around 4-5 kW of thermal energy. This means that it has an efficiency between 400% and 500%.
Maintenance costs are low because no combustion is required.
According to our experience, the investment in an aerothermal system is usually recovered within 4 to 5 years when compared to a gas or diesel boiler.
The heat pump takes up very little space. In addition, there are models for outdoor installation which do not require an equipment room.
A house is usually our home for many years. Our planet is going to be our home for a lifetime. This is a good system for both your economy and the planet.
Using the free energy available in the environment will give you energy self-sufficiency.
The different administrations offer direct support or subsidies for aerothermal energy, such as installation subsidies, property tax rebates, or tax deductions.
You are building or have planned to build your home. You would like to enjoy a comfortable temperature in summer and winter without having to worry- about the energy bill. You are looking for the best solution for today and the future.
You want to renew your old heating system. You are looking to reduce energy costs without sacrificing comfort. You are willing to invest in a more modern system, as long as this investment is amortized with the savings generated.
We can help you with your project at no cost to you. We will look for the best solution for your client. Once we have it, our engineering department will provide you with the calculations, design, and justification of the project.
The price of installing aerothermal energy in your home is an important aspect of making the right choice.
Many factors determine the price of a heating and air conditioning system with aerothermal energy. That is why there is so much difference between quotations. It is sometimes difficult to understand why each price range is so different.
If you are considering installing an air-source heat pump, this lack of clarity can create confusion.
To help you understand the price of an air-source heat pump for a single-family house, we have created this simple guide.
To convert air energy into useful energy for the home, an aerothermal system requires a heat pump.
The aerothermal heat pump is the main component of an aerothermal system and the most expensive one.
There are 2 types of aerothermal heat pumps:
Monobloc and bibloc
Price of monobloc heat pumps
These are units that integrate the cooling circuit in a single unit, which is placed outside the house. They are usually larger units that have a lower installation cost since the refrigerant connection between the indoor and outdoor units is avoided.
The prices of monobloc heat pumps depend mainly on the brand, power, and performance.
Giving an exact price is complicated because many variables affect the final price.
However, one of the factors that most determines its price is the size of the house, since this, together with the climate zone, the level of insulation, and the emission system, determines the type and power required by the heat pump.
House size: 100m² (1.076ft²)
House size: 150m² (1.615ft²)
House size: 200m² (2.153ft²)
House size: 250m² (2.691ft²)
House size: 300m² (3.230ft²)
Price of bibloc heat pumps
Bibloc air-source heat pumps are composed of 2 units: the outdoor unit and the indoor unit.
Most models are equipped with a compressor in the outdoor unit, which captures the energy from the air.
The indoor unit mainly contains the unit control, the heat exchanger, and the circulating pump. Some manufacturers also incorporate a DHW storage tank in this indoor unit. This way, they manage to simplify the installation and reduce space requirements.
House size: 100m² (1.076ft²)
House size: 150m² (1.615ft²)
House size: 200m² (2.153ft²)
House size: 250m² (2.691ft²)
House size: 300m² (3.230ft²)
House size: 100m² (1.076ft²)
House size: 150m² (1.615ft²)
House size: 200m² (2.153ft²)
House size: 250m² (2.691ft²)
House size: 300m² (3.230ft²)
In a system with aerothermal energy, in addition to the heat pump, there are several components required for any installation:
All installations with an air-source heat pump must have a DHW storage tank to provide the house with domestic hot water.
In some installations, the heat pump already integrates this accumulator into its indoor unit. Otherwise, it would be necessary to have an external storage tank to produce DHW.
The cost of a DHW storage tank depends mainly on the storage volume, as well as the type of tank, and the materials used.
To determine the volume of DHW storage in a house, we calculate a need of between 40-50 litres per person at an accumulation temperature of 50ºC (122ºF).
Price of the DHW storage tank depending on the number of people and the model:
Number of people: up to 4
Number of people: 5-10
Number of people: 10-20
Number of people: more than 20
In addition to a DHW storage tank, air-source heat pump installations may also require a buffer tank.
Although it would only be strictly necessary for non-inverter heat pumps, we usually recommend it because it reduces the number of starts and stops of the compressor, thereby optimizing its operation. The result is an impact on the heat pump’s consumption, and above all, on its service life. It is also possible to guarantee that the heat pump will operate at a specific flow rate at all times.
Power 5kW
Power 7,5kW
Power 10kW
Power 12,5kW
Power 15kW
Normally, the installation work for an average-sized single-family house requires 2 professionals for about 3-4 days.
This would cost approximately 1,500€ to 2,000€.
Here you can find out more about the subsidies that are currently in force in our country for the installation of aerothermal energy:
In June 2021, the government approved subsidies for aerothermal energy (except for air-to-air technologies for air conditioning and/or domestic hot water in homes).
The eligible amount for aerothermal installations (air-water) is 500€/kW installed up to a maximum of 3.000€ per house. In public housing and the tertiary sector the subsidies are 650€/kW installed up to a maximum of 3.900€ per house.
The subsidies will be valid until December 31, 2023. However, as has been the case in recent calls, the subsidies are non-competitive; that is, they will be processed in order of entry into the registry and until the credit is exhausted, therefore, it is important to submit the grant as soon as possible.
The starting dates for submitting applications vary according to the regions.
Here are the ones that have already announced their dates:
Aside from the subsidies, which will reduce your initial investment considerably, you will also be able to claim tax deductions and II bonuses (up to 50% depending on the municipality where you live).
Energanova will inform you about all these aids and if you wish we will process them for free of charge.
We have developed the first calculator that allows you to estimate the investment and savings of your project.
No initial investment. You will pay for it with the savings generated.
