What types of gas boilers are there?

1. Conventional gas boilers

Advantages:

• Low initial costThey are generally cheaper than other types of gas boilers.
• Easy installationThe installation of these boilers is straightforward, and they fit into existing traditional systems.

It is ideal for projects or installations where:

• An economical and simple solution is sought to heat small homes.
• There is already an old heating system that wants to be renewed without making major modifications.

Our recommendations for natural gas boilers



Natural gas boiler NEODENS LITE 24/24F BAXI

• It works with natural gas and butane/propane.
• Heating power: 24 kW
• ACS power: 24 kW

2. Mixed gas boilers

Advantages:

• Compact and practicalThey do not require a hot water tank, which saves space.
• Immediate supply of hot waterThe water is heated instantly when needed, which eliminates waiting times.
• Space saving: Ideal for homes with limited space.

It is ideal for projects or installations where:

• A compact solution is needed for small spaces or where there is no room for a hot water tank.
• The home does not have a very high demand for hot water, allowing for efficient use of the boiler.
• A system that provides heating and hot water in a single unit is required.

Our recommendations for mixed gas boilers



Ferroli Bluehelix Alpha 28 C FERROLI mixed gas boiler

• Power 24 kW (heating) and 28 kW (DHW)
• High energy efficiency (109.7%)
• Integrated WiFi control

3. Condensing gas boilers

Advantages:

• High energy efficiencyThey can achieve an efficiency of over 90%, which translates to lower gas consumption.
• Lower emissionsBy utilizing residual heat, these boilers are more environmentally friendly.
• Long-term savings: Although its initial cost is higher, thesavings on the gas billmore than compensates for this investment.

It is ideal for projects or installations where:

• The aim is to reduce energy consumption and pollutant emissions.
• The project includes low-temperature heating systems, such as underfloor heating, which maximizes the efficiency of these boilers.
• There is a desire to comply with stricter energy efficiency regulations.

Our recommendations for condensing gas boilers



Thermor LOGIC MICRO 24 THERMOR gas boiler

• Power of 24.2 kW.
• Energy class A.
• Hot water flow rate of 13.87 L/min.

4. Sealed gas boilers

Advantages:

• Greater safety: Since they are sealed, there is no risk of combustion gases entering the home.
• Reliable efficiencyThey maintain good performance, suitable for most homes.
• Compatible with various installationsThey can be adapted to traditional and modern heating systems.

It is ideal for projects or installations where:

• A safe boiler is needed for enclosed or poorly ventilated spaces.
• An efficient heating system is required in small or medium-sized homes.
• A safe and efficient option is sought without significant technical requirements.

5. Low NOx gas boilers

Advantages:

• Environmentally friendlyThey significantly reduce the emissions of polluting gases.
• Regulatory complianceIdeal for areas where NOx emission regulations are strict.
• Good efficiencyIn addition to emitting fewer gases, they maintain efficient performance for the home.

It is ideal for projects or installations where:

• The aim is to comply with local regulations that limit the emission of polluting gases.
• The project is located in urban areas with stricter environmental regulations.
• A more sustainable and eco-friendly heating option is desired.

6. Storage gas boilers

Advantages:

• Greater amount of hot waterThey can supply hot water to several taps or showers at the same time without any issues.
• Ideal for large familiesThey allow for enough hot water for homes with multiple people or simultaneous uses.
• Efficiency in supplyThey provide instant hot water in large quantities.

It is ideal for projects or installations where:

• A large amount of hot water is needed, such as in homes with several people or multiple bathrooms.
• The project requires hot water for several points of use simultaneously.
• Comfort and the immediate availability of hot water in large quantities are prioritized.

How to choose the right gas boiler?

Home size and number of people

• For small homes or apartmentsIf you live in a small space, amixed boileris usually the best option. These boilers do not require a storage tank and provide hot water instantly, making them perfect for homes with one or two people.
• For large homes or with several peopleIf you have a house with several rooms, multiple bathrooms, or a large family, you are likely to need astorage boiler. This type of boiler can store large amounts of hot water, ensuring a constant supply when several people use water simultaneously.

Demand for domestic hot water (DHW)

• Low hot water demandIf you usually don't have many people using hot water at the same time (for example, a shower and a faucet open simultaneously), acombi boileris ideal. It provides hot water on demand, without the need for a storage tank.
• High demand for hot water: If you have several bathrooms or need hot water in multiple areas of the house simultaneously (such as in a large house with several family members), then astorage boileris the most suitable option. These boilers allow multiple people to use hot water at the same time without any drops in temperature or supply.

Type of heating system

• Conventional radiatorsconventional radiators usually work well with most gas boilers, but if you are looking for energy efficiency, acondensing boileris ideal. This type of boiler recovers the residual heat from the combustion gases, which improves energy efficiency.
• Low temperature systems (underfloor heating): Low temperature systems (underfloor heating)underfloor heatingwork better withcondensing boilers, since these boilers are more efficient in generating heat at low temperatures. This type of heating distributes heat evenly throughout the home, maximizing the boiler's performance.

Energy efficiency

• Condensing boilersThey are the most efficient on the market, with an efficiency that can exceed 90%. These boilers utilize the heat from combustion gases to heat the water, which reduces energy waste and, consequently, gas bills.
• Low NOx boilersThese boilers are ideal if your priority is to reduce environmental impact. They emit less nitrogen oxides (NOx), which are polluting gases, without compromising efficiency.

Local regulations and standards

• Regulatory compliancegas boiler with low NOx emissions is often a requirement.low NOx boileror acondensing boilerit may be mandatory to comply with regulations on emissions and energy efficiency.

Available space for installation

• Reduced spacesIf you have limited space, such as in apartments or small homes, themixed boilersare an excellent option. These boilers are compact and do not require a hot water tank, making them easy to install in small areas such as kitchens or closets.
• Homes with more spaceIf you have a larger area for installation, such as a garage or a technical room, you might consider astorage water heater, which takes up more space due to its tank, but provides a continuous supply of hot water to multiple points of use.

Budget

• Low initial budgetIf you have a limited budget, theconventional boilersorsealedthey can be initially more economical options. However, their efficiency is lower, which could increase expenses in the long term.
• Long-term investmentIf you are willing to make a larger investment to save in the future, thecondensing boilersare the best option, as their high efficiency will significantly reduce gas consumption and energy bills.

Conclusion