Best Gas Boilers For Home Heating

The best gas boilers for apartments and private houses: powerful, economical and most importantly, safe.

Which gas boiler is better to buy

The power of heating equipment is the first thing to determine before buying. It is calculated through the heating area, taking into account the climatic zone. At first, with a standard ceiling height of up to 3 m, you can do with simple calculations: multiply the area of housing by the coefficient for your region, and divide the total by 10. As a result, you will get an approximate boiler power in kW.

According to the calculation, for a house with an area of ​​100 squares in the middle lane, a boiler of 10-12 kW is required. When buying a double-circuit unit, the total capacity will increase by 20%.
The method of installing the boiler affects not only the organization of the space, but also the safety of using gas equipment. A wall mount will save space, but the compactness of the model will entail a number of technical limitations. The burner, exchanger, pump and control electronics will be too close to each other, which will create a tense operating temperature and complicate maintenance.

Compact wall models have power limitations – they are more suitable for an apartment than for a private house. Floor-standing boilers, as a rule, are installed in separate rooms, therefore their overall dimensions, as well as thermal power, are not limited by anything except common sense.

The types of gas burners do not depend on the type of boiler chosen, but they determine the principle of its operation and performance:

  • Atmospheric burners are inexpensive and virtually silent. But they burn out the air in the room and have a low efficiency.
  • The superchargers are equipped with an external air blower. Boilers with such burners are efficient and do not require installation in a separate room.

Modulating burners with variable output can be equipped with a second heating stage or electronic heat transfer control. Their efficiency and economy increase at the same time as the price of the boiler.

Best wall mounted gas boilers

This section presents single-circuit space heating systems that are placed on the wall. They are compact and easy to maintain, although they have some limitations in functionality.

#1 Viessmann Vitopend 100-W A1HB003

The A1HB line includes three boilers with a capacity of 24, 30 and 34 kW. This is enough to heat housing up to 250 m2. All cases are equally compact: 725x400x340 mm – there is a place for such units in any room.

Viessmann boilers are assembled on a single modular platform, which simplifies their installation and maintenance. In addition, there is no need to leave additional space near the case, so any Vitopend can be combined with kitchen furniture if there is a free corner for it.

Pros
  • Low gas consumption – no more than 3.5 m3 / h in the older model;
  • The valve body is equipped with quick-release connectors;
  • Automatic power adjustment depending on the outside temperature;
  • Efficiency up to 93%;
  • New coaxial chimney system with frost protection;
  • Intelligent control with self-diagnosis function;
  • Possibility to switch to liquefied gas.
Cons
  • There is no remote control panel.

Viessmann provides an opportunity to choose a boiler for an apartment of any size. The appearance and dimensions for the entire line are absolutely the same – the models differ only in performance and, accordingly, in gas consumption.

#2 Baxi Eco Four 1.24 F

Despite the prestige of the brand, the Eco Four is relatively inexpensive. The boiler has a flat body measuring 730x400x299 mm, which allows it to be hung on the same level as kitchen cabinets. When used in northern latitudes, such a unit can heat an apartment up to 150 m².

The fourth generation boilers have been developed taking into account our operating conditions. That is why the presented model works even at a gas inlet pressure reduced to 5 mbar. In addition, it has two separate thermostats: for heating radiators and a “warm floor” system.

Pros
  • Built-in water flow meter;
  • Pump with air outlet and post-circulation mode;
  • It is possible to connect to solar collectors;
  • Dual-mode thermal control;
  • Pressostat for low pressure protection of the coolant;
  • You can connect an external thermostat and a remote control.
Cons
  • Low-informative built-in display.

As for the Baxi, the Eco Four is very attractively priced. In addition, this is an excellent solution for placement in a small kitchen or studio apartment.

#3 Vaillant AtmoTEC Plus VU 240/5-5

This boiler has all possible protection means: gas control, pressure switch with safety valve, pump air vent. Overheating of the carrier and the combustion chamber, freezing of the liquid in the system and in the chimney are completely excluded here. The built-in self-diagnostics helps to monitor the correct operation of all systems.

AtmoTEC is adapted for operation in Russia: it takes into account the low quality of main gas and can operate on LNG. The control of the programmer is fully automated, and the panel itself is closed with a neat decorative cover.

Pros
  • Volumetric expansion tank for 10 liters;
  • Low gas consumption – 2.8 m³ / h (or 1.9 m³ / h when connected to a cylinder);
  • Almost eternal chrome-nickel burner;
  • Possibility of combining with other heaters;
  • The minimum side clearance for mounting is 1 cm.
Cons
  • Classic (atmospheric) chimney.

The dimensions of the boiler are 800x440x338 mm and the maximum power of 36 kW is more suitable for a private house than for a city apartment. Although in a spacious kitchen there will be no problems with its placement.

Best floor-standing units

Consider single-circuit units of large and medium dimensions, which do not have functional restrictions. They are installed on the floor and most often require a separate installation room.

#4 Bosch GAZ 2500 F

This is the first floor-standing gas boiler developed by Russian engineers at Bosch – especially for operation by our compatriots. The unit is capable of operating with unstable voltage in the network and low gas pressure. At the stands, GAZ 2500 proved that it can function without serious breakdowns for 20 years. Thanks in part to a 3 mm steel heat exchanger.

The series includes 4 models from 22 to 42 kW. But despite the domestic assembly, they cannot be called cheap. But these boilers can be connected to an external indirect heating boiler (optional). And the capabilities of built-in automation explain the rather big cost.

Pros
  • Large capacity heat exchanger;
  • Flexible power change within 60-100%;
  • Fully automated control;
  • Preset modes that do not require configuration;
  • The presence of a remote control;
  • Temperature change according to the schedule;
  • Possibility to reconfigure the boiler for bottled gas.
Cons
  • High price.

The Bosch GAZ really has no problem adapting to our operating conditions. All critical elements are made specifically for Russia, have a good margin of safety and reliability.

#5 Protherm 40 KLOM

A reliable and efficient boiler with a cast iron heat exchanger is an excellent solution for a private house, without restrictions on the size of the boiler room. Thermal power of this model is 35 kW at a maximum gas consumption of 4.1 m3 / h. A cast-iron heat exchanger is installed inside – almost eternal if used correctly.

All imported electronic filling, protection and control automatics are already included in the kit. Work data is displayed on the LCD display, where you can track both the temperature of the media and the pressure in the system.

Pros
  • The service life of the heat exchanger is 25 years;
  • Complete set of automation included;
  • Ease of maintenance;
  • Possibility to connect to LNG cylinders;
  • Relatively small dimensions.
Cons
  • Thin metal of the outer lining of the case (does not affect the quality of work).

If aesthetics and appearance are not a priority for you, “Bear” is perfect. The reliability of the boiler is at a height, the equipment is the same as that of the top models, and the price is the most affordable among the imported counterparts.

Best inexpensive boilers

Low price does not always mean low quality. If the manufacturer saves on minor details that do not affect the operation of the boiler, such a purchase will be justified.

#6 Lemax Premium-30

A 30 kW unit is suitable for economical homeowners to heat an area of ​​no more than 250 m2. The set of functions is minimal, but all the necessary security tools are there. The manufacturer has abandoned the complex electronic filling, so the boiler is completely non-volatile – just connect it to the gas supply, and everything will work.

The floor-standing model itself is made soundly, the heat exchanger is steel inside. And with an efficiency of 90% Lemax consumes the minimum amount of blue fuel – no more than 1.75 m3 / h.

Pros
  • Good build quality
  • Gas control;
  • There is overheating protection;
  • Very economical;
  • Heating the coolant up to +90 ° С.
Cons
  • Manual control.

To maintain the required temperature in the system connected to Lemax, constant monitoring is required. Otherwise, there will be no problems with it, and the non-volatile boiler will save a lot of money.

#7 Mora-Top Meteor Plus PK18ST

The Czech company Mora is known for its high-quality gas stoves. But the heating boilers of this brand are no worse. For example, a wall-mounted single-circuit Meteor Plus with a heat output of up to 19 kW, a built-in expander and a circulation pump. It works flawlessly, consumes no more than 2.16 m3 / h of gas, has the entire minimum set of protective functions and, at the same time, is much cheaper than branded counterparts.

Pros
  • Burner with automatic modulation;
  • Low fuel consumption;
  • Possibility of external control;
  • Quiet work;
  • There is protection against overheating and freezing;
  • Calmly tolerates gas pressure drops.
Cons
  • Not the highest efficiency (90%).

To install the Mora, you need a little more space than for compact Italian or German models, and in terms of design, this boiler loses to them. But Meteor fulfills its cost completely and is extremely simple to maintain.

Best double-circuit gas boilers

Double-circuit boilers simultaneously heat water both for the heating system and for hot water supply. In this section, we will look at the best units without a built-in boiler.

#8 Haier Aquila

The series of wall-mounted double-circuits includes 4 models of boilers with a capacity of 14, 18, 24 and 28 kW. The burner and heat exchanger are made of stainless steel and are not afraid of corrosion. The tube of the second circuit is copper, so that the running water has time to heat up.

Control in all Haier models is electronic: an LCD display is placed on the body, which simplifies communication with the boiler automation. It is possible to connect a remote room regulator – with it, the unit will be able to automatically adjust the burner power to maintain the set temperature. The manufacturer did not forget about the full range of protections: from overheating, freezing, extinguished flame, reverse draft.

Pros
  • Small dimensions 750x403x320 mm;
  • Daily and weekly operating mode programmer;
  • Work with an external temperature sensor;
  • Possibility of switching to liquefied gas;
  • Built-in pump with electronic control and dry run protection;
  • The room sensor is already included;
  • Heating the coolant up to +90 ° С.
Cons
  • Non-Russified menu.

Well-made and attractive in appearance, the boiler will perfectly fit into a city apartment. With it, it will not only become warm, but it will also be possible to solve the problem of hot water.

#9 Baxi LUNA-3 Comfort 310 Fi

The main highlight of this model is the removable control panel, made in a separate case. You can leave it on the boiler, or fix it in any convenient place. The socket has one more secret – a built-in temperature sensor. Thanks to him, the boiler can automatically regulate the burner power within the range of 10-31 kW, focusing on the specified parameters. You can also adjust the water temperature in the second circuit – from 35 to 65 degrees.

Pros
  • Convenient control from the external panel;
  • Rapid heating of the heating system (relevant for the northern regions);
  • Automatic restart in case of network outages;
  • The built-in pump pumps the coolant up to 3 floors;
  • A good indicator of efficiency is 93%.
Cons
  • There is no hot water circulation in the second circuit.

Baxi LUNA-3 is a premium class in everything: from the appearance of the boiler to its equipment and safety level.

Best models with a built-in boiler

In fact, these boilers are a 2-in-1 system. The circuit with an expansion tank works to heat the room, and the storage boiler stores hot water for household needs. All this is placed in one building, which is why such boilers are very bulky.

#10 Baxi Slim 2.300 i

A powerful floor-standing boiler, stuffed with automation responsible for the energy efficiency and safety of gas equipment. The 30 liter boiler heats up quickly and holds the temperature for a long time, saving fuel. There are also two pumps in the body: one for the heating system, the second for hot water supply.

The total heat output of Baxi Slim is 30 kW. Depending on the characteristics of the connected system, it can heat the coolant up to +30 .. + 45 or +85 degrees (for a warm floor, the temperature is maintained at the lower limit).

Pros
  • Cast iron heat exchanger in the heating circuit;
  • Freeze protection of pipe and carrier;
  • Possibility of connecting room and weather automation;
  • Availability of safety valves on both branches;
  • Flame control;
  • Work when the fuel pressure drops to 5 mbar.
Cons
  • High price.

Baxi Slim is a fully automated mini-boiler room and boiler room for a country house. However, in order to take advantage of all its capabilities, you will have to separately purchase and connect the necessary sensors.

#11 Beretta Boiler 28 BSI

It is generally difficult to imagine a wall-mounted model with a storage device, but this unit is just such a 2-in-1 boiler. In addition to a closed-type chamber with access to a coaxial chimney, inside the Beretta housing there is also a 60-liter storage boiler, which quickly heats up the second circuit of the heat exchanger.

28 BSI is equipped with a weather-compensated automatic system, its own circulation pump, and a 10-liter expansion tank. In the heating system, it can maintain the temperature in the range of +40 .. + 80 ° C, in the hot water supply up to +63 degrees.

Pros
  • Excellent build quality
  • A closed chamber does not burn out oxygen;
  • Intelligent control;
  • Presence of preset operating modes;
  • Possibility to connect to LNG;
  • A complete set of protections, including for work in northern latitudes.
Cons
  • A rare, scarce commodity.

Even those who do not understand the operation of boiler equipment will be able to operate the Beretta Boiler. All preinstalled programs are already there, and the owners will not have to interfere with the settings.

Best condensing gas boilers

These boilers are considered the most economical because they are able to use the energy not only of gas combustion, but of condensing steam. As a result, their efficiency is almost very close to the cherished 100%.

#12 Vaillant ecoTEC plus VUW

Stuffed with intelligent electronics and eBus-commutations, the unit works not only for efficient heating, but also for the preparation of hot water, that is, it also belongs to double-circuit systems. The condensing system is more environmentally friendly than the traditional one, moreover, it provides a very high efficiency of 98%.

A modulating burner with wide power regulation options (from 28 to 100 percent) is installed in the combustion chamber. With such efficiency and equipment, the dimensions of the boiler are quite acceptable: 720x440x372 mm. The ecoTEC line itself consists of three models with a maximum power of 24, 30 and 34 kW.

Pros
  • Digital control and diagnostics system;
  • The most informative panel;
  • The ability to control from a mobile and connect to a “smart home”;
  • The burner can receive air both indoors and outdoors;
  • Short-term power increase for fast water heating;
  • Condensate drainage to the outside.
Cons
  • Difficulty in repair;
  • High price.

EcoTEC Plus boilers are still frightened off by their high cost. But the hassle with them is minimal, and the fuel economy will pay off the investment over time.

#13 Viessmann Vitodens 100-W

An expensive boiler, capable of operating at a power of 4.7-35 kW, saves not only blue fuel, but also electricity – due to the controlled operation of the fan. This model also has other highlights. This is a MatriX cylindrical burner consisting of a multitude of micro-nozzles, which practically does not allow any heat loss. An annular stainless steel heat exchanger works no less efficiently.

Pros
  • Compact body 400x400x350 mm;
  • Two ways to prepare hot water;
  • Maximum economy and energy efficiency;
  • High efficiency (98%);
  • Intelligent automation;
  • Remote control – from a touch panel or smartphone;
  • Possibility to work on LNG and biogas;
  • Easy access for repair and maintenance.
Cons
  • Price.

If your home is equipped with a smart home system, the equally smart Viessmann Vitodens will be the best solution for creating a heating and hot water system.

Leave a Reply