Winter is coming, although temperatures are still mild. So, with energy costs spiraling out of control, it's worth asking the question that titles this article: which heating system uses the least energy? And which heats the most? It's worth analyzing which systems are the most efficient at reducing your electricity bill without sacrificing comfort. The equation seems difficult, but it's not.
Choose the most energy-efficient heating based on your needs
The first thing to consider when choosing is the size of the house: a 50-square-meter (m2) apartment does not heat the same way as a 100-square-meter apartment or a house. In small apartments, heat pumps and condensing boilers are ideal. In larger spaces, aerothermal energy is more convenient.
It is also important to consider the number of people living in the house: if there are two or three people, a condensing boiler with radiators is the ideal system. But if you work from home, it is better to invest in aerothermal energy, which, although it is the most expensive, will make a noticeable difference in your bills.
What type of heating consumes less energy?
Overall, the most efficient (in terms of energy savings) is aerothermal energy, although its price is one of the highest. Gas boilers and air conditioning come next. Here is an analysis of each system:
- Condensing boilers: they are inexpensive and efficient, but they are not used to cool the house. This type of boiler can save up to 25% on heating and 30% on hot water;
- Air conditioning with heat pump: they consume little but are a system that does not include hot water, so another alternative for water must be provided. In addition, they heat up quickly, but it is true that the heat does not last long;
- Biomass boiler: these boilers work by burning biomass and provide heat and hot water. The main disadvantage is that they require space for storage, which is why they are not recommended for small homes;
- Aerothermal: of the systems we have seen, this is the most efficient. The unit works with conventional radiators, although underfloor or low-temperature radiators are more recommended for this system. On the other hand, the price is one of the highest, even more so if it is also necessary to install underfloor heating, which requires work.
How to save on heating
Regardless of your choice, here are some tips to save on your electricity and gas bills:
- Do not cover radiators, either with clothes to dry or with radiator covers that may look attractive but prevent heat from escaping;
- Insulate windows and doors well;
- Adjust the temperature. The ideal would be around 19 degrees in winter and around 25 degrees in summer;
- Have your boilers serviced. Gas boilers should be serviced every two years and every five years they need to be fully inspected; biomass boilers require an annual service; and aerothermal equipment should be serviced every two years if the power output exceeds 12kW.
Source: Idealista/news