High-temperature aerothermal energy is an innovative and efficient solution for heating homes and buildings without having to use fossil fuels. This system uses the energy from the outside air to generate heating and domestic hot water (DHW), allowing traditional boilers to be replaced without having to modify the existing installation. radiators conventional
In this article we will explore in depth what high-temperature geothermal energy is, how it works, in which cases its installation is recommended, its benefits, disadvantages, estimated costs and the main brands and models available on the market.
What is high temperature aerothermal energy?
La high temperature aerothermal It is an air conditioning system that uses air-water heat pumps capable of reaching temperatures between 65ºC and 80ºCThis technology makes it possible to generate heating and hot water without using fuels such as gas or diesel.
This type of aerothermal energy is particularly suitable for homes that already have high temperature radiators, since they can maintain the existing installation without the need to carry out works to incorporate low-temperature systems such as radiating floor.
How does high-temperature geothermal energy work?
The high temperature aerothermal system works through a reversible refrigeration cycleThe main stages of its operation are explained below:
- Heat collection: The outdoor unit captures heat from the ambient air and transfers it to a refrigerant.
- Compression: Using a compressor, the refrigerant is compressed, increasing its temperature.
- Heat exchange: The heat generated is transferred to the water circuit, reaching temperatures between 65ºC and 80ºC.
- Heat distribution: Hot water is distributed through radiators or other thermal emitters to heat the rooms.
Some advanced models include a system of double compressor or a cascading mechanism that automatically adjusts operation according to demand, optimizing energy consumption.
Advantages of high temperature aerothermal energy
Opting for a high-temperature aerothermal installation offers multiple benefits:
- Compatibility with conventional radiators: It is not necessary to modify the existing high temperature radiator installation.
- High energy efficiency: For every kW of electricity consumed, the system can generate up to 3 kW of thermal energy.
- Reducing fossil fuel consumption: It is a sustainable alternative to gas or diesel boilers.
- Savings on your energy bill: It can reduce your air conditioning costs by up to 60% compared to traditional systems.
- Long useful life: Its average durability is about 25 years, with easy maintenance.
Disadvantages and considerations before installing it
Although it is an efficient and ecological option, high-temperature geothermal energy also has some disadvantages:
- High initial price: Its installation can range from 9.000 and 20.000 euros.
- Higher electricity consumption: Although it is still more efficient than a gas boiler, it consumes more energy than low-temperature geothermal energy.
- Requires enough space for the outdoor unit: It is not ideal for homes without access to an outdoor area in which to locate it.
- Does not provide cooling in summer: Unlike low-temperature aerothermal energy, it does not cool the home.
When is it advisable to install high-temperature aerothermal energy?
This type of aerothermal energy is recommended in the following cases:
- Homes with high temperature radiators: Allows you to replace a boiler without changing the thermal emitters.
- Energy rehabilitations: To improve energy efficiency without major renovations.
- Cold climates: Where heating demand is high and hot water is required at high temperatures.
On the contrary, if the house already has a system of radiating floor or low-temperature radiators, it may be more efficient to opt for a low-temperature aerothermal system.
Comparison between high and low temperature aerothermal energy
| Feature | High temperature | Low temperature |
|---|---|---|
| Water temperature | 65ºC - 80ºC | 35ºC - 55ºC |
| Compatible with conventional radiators | Yes | No |
| Higher energy efficiency | No | Yes |
| installation cost | Alto | Moderate |
High temperature aerothermal prices
The cost of these systems depends on the power, the brand and the need to include DHW production. Below are approximate prices depending on the size of the home:
| Housing Size | Approximate price |
|---|---|
| 50 sq | € 6.000 - € 6.500 |
| 100 sq | € 7.500 - € 8.000 |
| 150 sq | € 9.500 - € 10.000 |
| 200 sq | € 10.000 - € 11.500 |
If you are looking for an efficient alternative to replace your gas or oil boiler without having to replace the radiators, high-temperature aerothermal energy may be the best option. Its initial investment is higher, but the savings on the energy bill and the sustainability of the system make it a profitable alternative in the long term.