Boilers

A boiler is recommended when you want to heat the entire house and produce hot water centrally. Boilers are an excellent heating option for houses or buildings with multiple consumption points and radiator systems, fan coil units, or underfloor heating. It makes sense to opt for a boiler when looking for uniform thermal comfort, good energy efficiency, and integration with an existing or planned heating system.

There are wood-fired, pellet, gas, electric, and mixed-fuel boilers. Pellet boilers offer greater automation and operating stability. Wood-fired boilers are simpler and depend on manual loading. Electric boilers do not require a chimney but have different operating costs. The choice mainly depends on the available fuel, the desired level of control, and the daily use of the system.

Pellet boilers stand out for using biomass and offering greater energy independence. Gas boilers provide a fast response and simple integration into existing networks. When deciding, it is important to evaluate operating costs, fuel availability, frequency of use, and the housing setup. There is no universal solution, which is why the choice should be made on a case-by-case basis.

The power depends on the size of the house, insulation, ceiling height, number of floors, and hot water needs. Incorrect sizing can result in high consumption or insufficient performance. For this reason, rather than applying generic formulas, it is essential to technically match the boiler to the actual building to ensure adequate efficiency and thermal comfort. At BIGAVAC, you will find professional support to calculate the most suitable boiler power. Contact us!

Yes, modern boilers are energy efficient when correctly selected and installed. Modern boilers have high efficiency and better energy utilisation, especially when integrated into well-regulated systems. Efficiency depends on the type of fuel, the equipment technology, and regular maintenance. An appropriate technical choice results in lower consumption and greater heating stability.

The main difference between a conventional boiler and a condensing boiler lies in the recovery of heat from combustion gases. Condensing boilers recover this additional heat, which increases their overall efficiency. Furthermore, they are more suitable for modern systems and perform better with low return temperatures. The choice should consider the existing heating system and technical compatibility of the installation. BIGAVAC has a team of professionals available to help you choose the best boiler for your project.

An electric boiler can be an option when there is no possibility of flue gas evacuation or supply of other fuels. It is simple to install and quiet, but operating costs can be higher depending on consumption and the electricity tariff. It is more suitable for small dwellings, occasional use, or as a complementary solution.

When a boiler does not heat the water or the house well, the problem may be related to inadequate pressure, insufficient power, poor system regulation, or lack of maintenance. In many cases, the equipment works correctly but is poorly matched to the heating system. Before replacing the boiler, it is essential to evaluate the circuit, the heat emitters, and the overall condition of the installation.

Yes. Regular maintenance is essential to ensure the safety, efficiency, and durability of boilers. Good maintenance should include component inspection, cleaning, pressure control, and combustion assessment. A well-maintained boiler consumes less, has fewer breakdowns, and maintains stable performance over time, reducing unexpected costs and extending the system's lifespan.

Yes, there are legal requirements for boiler installation. The installation must comply with technical and safety standards, which include ventilation, flue gas evacuation, and protection distances. Depending on the type of boiler and the building, additional requirements may apply. A prior technical analysis of the site is essential to ensure legal compliance, as well as safe operation and adequate system performance. At BIGAVAC, you will find a team of professionals available to answer your questions.