Due to the fact that most country houses in Russian cities and villages are not equipped central heating, the issue of heating a home is quite acute. Gas heating systems quite easily solve the issue of creating autonomous heating. If the house has electric water heater, then the best solution would be .
Today, the Russian market for climate control equipment is overflowing with heating systems from manufacturers from Germany, Italy, France, Slovenia and China. In terms of its characteristics, domestic equipment is not inferior to the leaders of this segment and is on a par with such brands as Bosch, Vaillant, Baxi, etc. In the huge number of models, manufacturers, and brands, it is not surprising even for a specialist to get confused. That is why domestic consumers are increasingly asking the question, which gas single-circuit boiler is better?
Criterias of choice
To choose the right model heating boiler you should have an understanding of the design and operating principle of the device. If you don’t have such knowledge, then contact specialists. If you have an idea of how single-circuit gas installations are designed, then before choosing a specific model, pay attention to the following points and design features:
- Manufacturer. For the production of reliable heating gas installations Manufacturers from Germany are in the lead (Bosch, Vaillant). The most functional single-circuit boiler units are offered by manufacturers from South Korea (NAVIEN), Slovenia (Protherm). Italian manufacturers offer devices with the best price-quality ratio (Baxi and Ferrolli).
- Ignition type. In modern heating boilers you can find electronic and piezo ignition. The first type involves ignition of the gas mixture in automatic mode. In the second, batteries are used as a power plant. Ignition requires human participation.
- Burner. Single-circuit boilers use single-stage and modulating burners. Single stage always operates at 100% power. Modulated - more modern, they allow you to change the heating power of the coolant in the range from 30 to 100%. In addition, the burner can be atmospheric or turbocharged. Atmospheric ones are more durable and silent. Turbocharged ones have higher efficiency, but also cost significantly more.
- Heat exchanger material. For the heat exchanger, a material with good thermal conductivity and resistance to high temperatures is selected. Copper is a material with better thermal conductivity and a low melting point. A boiler with a copper heat exchanger should be selected for low-power equipment. In addition to copper, stainless steel is used for coils, which has average thermal conductivity and durability. Cast iron heat exchangers are durable, but due to their heavy weight they are used only in floor-standing models.
- The combustion chamber. Modern boilers are equipped with an open or closed combustion chamber. In an open one, air is taken from the room; in a closed one, air comes from the street through a coaxial chimney.
- Removal of combustion products. Exhaust gases can be removed in modern heating boilers using natural and forced draft. In the first case, a vertical chimney and good ventilation in the room with the boiler are required. In the second option, combustion products are removed through coaxial chimney using a built-in fan.
In order to provide assistance, a rating has been compiled heating installations, based on performance characteristics, design features and reviews from real owners.
single-circuit wall-mounted boilers are opened by one of the most functional heating devices - Vaillant turboTEC plus VU 122/3-5. This multifunctional unit is designed for heating rooms small area, up to 120 m2. The rated power of the boiler is 12 kW, which is adjusted automatically using a modulated burner. The device is equipped with: a closed combustion chamber, a turbine for forced removal of exhaust gases, a built-in multi-stage pump that drives the coolant, a copper heat exchanger, an electronic ignition unit and control of all functions of the installation, information about which is displayed on an informative LCD monitor.
This model is adapted to work in electrical networks with voltage fluctuations, thanks to the built-in stabilizer. The boiler operates without losing power at reduced pressure in the gas main. For collaboration with water heater, Vaillant turboTEC is equipped with the necessary connections. Efficiency - 91%. The average cost in Russian stores is 50 thousand rubles. Disadvantages - high cost.
Baxi Fourtech 1.24F
This popular wall mounted model features a closed combustion chamber, turbocharging and compulsory system smoke removal. Flame modulation in the burner allows you to change thermal power in the range from 9.3 to 24 kW. Maximum thermal load 25.8 kW. The heat exchanger material is copper. The boiler unit is equipped with a water pump to force the coolant to move through the heating system. A 6-liter expansion tank allows you to compensate for the expansion of the coolant due to its heating.
For comfortable use, the unit is equipped with mode indication, automatic ignition, and a built-in thermometer. Safety is ensured by protecting the heat exchanger from overheating, blast valve, gas control system. The unit has an automatic self-diagnosis function. Device efficiency 92.9%. The average cost is 32 thousand 800 rubles. Disadvantages: some models had problems with the gas valve.
According to our experts and based on price - quality - functionality, the best single-circuit wall-mounted boiler from European manufacturers is Baxi FOURTECH 1.24 F
This model is a single-circuit heating boiler unit with small dimensions from the Russian manufacturer Gazapparat. The maximum power of the device is 18 kW. According to the manufacturer, it is enough to heat an apartment or a small private house with an area of up to 180 m2. The boiler is equipped with an open combustion chamber, and therefore requires a separate chimney and good ventilation in the room where it is installed. The almost silent operation of this mini-boiler room is due to the use of an atmospheric burner. Thanks to the use of a copper heat exchanger, the efficiency declared by the manufacturer is at around 90%. Gas consumption 2.13 m 3 /h. When switching to liquefied gas, consumption is 1.59 kg/h.
Comfortable use of this boiler unit is due to the presence of automatic ignition; the temperature and pressure in the system are displayed on the front panel of the unit. Safety is ensured thanks to the gas control system, safety valve on the water circuit and protection against overheating of the heat exchanger. A feature of this model is low fuel consumption and ergonomic design. It is possible to connect: boiler indirect heating; "warm floor" systems; air turbine; external thermostat. The average price is 20 thousand rubles. Disadvantages: often turns on and off without an external thermostat.
This model is intended for apartment heating in multi-storey buildings and private houses with an area of up to 300 m2. The installation is equipped with a closed fuel chamber and has a capacity of 30 kW. Exhaust gas removal is forced, with the possibility of using a separate and coaxial chimney.
The peculiarity of this device is: continuous combustion modulation; the presence of 1 copper heat exchanger, not subject to low-temperature oxidation; automatic ignition with flame level control. It is possible to connect a water heater and switch to liquefied gas. The main advantage of the boiler unit is accurate temperature maintenance and the ability to use propylene glycol-based coolant. Consumers positively evaluate this heating boiler for its stable operation at low fuel pressure and voltage fluctuations. Efficiency at 100% power – 92.5%. Cost – 36 thousand rubles.
If you decide to support domestic manufacturer and wondered which single-circuit wall-mounted heating boiler is better, then, according to our experts and in terms of the price-quality-functionality ratio, the best single-circuit wall-mounted boiler from a Russian manufacturer is the NEVA-8230-1 model
As noted above, in the last decade, most of our compatriots prefer to live outside the city in their own houses and cottages. Unfortunately, they are limited in power, so it is not always advisable to use them for heating large private houses. In this case, underfloor heating systems come to the rescue. Next, a rating of gas floor-standing boilers from Russian and European manufacturers will be presented.
It is a floor heating system with an atmospheric burner and an open fuel chamber. The maximum power of the boiler unit is 44.5 kW. The design of this mini-boiler room includes a built-in 110 liter boiler. to create a domestic hot water system in the house. A special feature of the boiler is the manufacturer’s use of a reliable and durable cast iron heat exchanger. According to the manufacturer, its service life reaches 20 years. Main advantages: low fuel consumption 5.2 m 3 / h; protection class IP 40; Efficiency 92%. Disadvantages: does not work in low pressure gas lines. Cost – 70 thousand rubles.
Designed for heating a small private house or cottage with a total area of up to 120 m2. Equipped with a single-stage atmospheric burner, cast iron heat exchanger, electronic ignition and flame level control sensor. A special feature of this model is the design of the burner with ceramic rods and a fuel flow regulator. The open chamber and lack of pressurization make it impossible to install it in a room not equipped with ventilation and a smoke removal system with natural draft.
The advantages of this heating system: high efficiency - 94%; possibility of connecting an indirect heating boiler; the presence of automatic self-diagnosis. Average cost 7 thousand.e. Disadvantage: VRC 420S regulators are not included in the package.
Lemax Premium 20 – single-circuit energy-independent boiler unit Russian production, power 20 kW. The installation is equipped with a steel body, 2 mm thick, an atmospheric burner and an open fuel chamber. A special feature of this device is the innovative design of the heat exchanger, protected from overheating and coated with a special enamel that prevents corrosion. Advantages of this device: the presence of an air flow regulator, self-diagnosis functions. Efficiency – 90%. Average cost – 21 thousand rubles. Disadvantages: frequent problems with ignition, general shortcomings.
Conclusion: in terms of price-quality-functionality ratio, Vaillant AtmoVit INT 164-564/1-5 is unanimously recognized as the best floor-standing boiler.
Today's heating equipment market will satisfy the needs of any buyer, and offers are no exception. Here you can find many models of both budget units and expensive top-end equipment. In conditions of such saturation, it is difficult to determine which gas boiler is the most reliable, especially if you have not had to buy these devices before.
Statistics on the sale of these units by dealers and analysis of the popularity among consumers of various models of gas heating boilers make it possible to form and publish such a dynamic factor as the rating of this equipment, which will help the inexperienced buyer.
Appearance of modern gas heating boilers of various designs
Why should you choose a gas boiler?
Installing heating equipment that consumes gas as fuel has a number of advantages and even advantages over the use of units using other types of fuel:
- high equipment efficiency;
- wide range of prices for gas boilers;
- no need to create fuel reserves;
- affordability of this natural energy source;
- high degree of automation.
When purchasing such an installation, the buyer naturally expects warmth in the house, safety during operation of the boiler and the durability of this equipment.
Regardless of the model and manufacturer, the heating temperature of the coolant is approximately the same for all gas boilers. In addition, before being released onto the market, units undergo mandatory testing to ensure compliance with safety standards; top-end models are equipped with systems self-diagnosis and multi-level protection.
After analyzing the service life, the need for repairs and feedback from experts, buyers can select up to ten models of gas boilers, characterized by a high degree of efficiency, safety and ease of use.
Rating of wall-mounted gas boilers
Wolf CGG-1K-24
Double-circuit gas water heating unit made in Germany Wolf CGG-1K-24 wall-mounted
Wolf CGG-1K-24 (made in Germany) - the most reliable wall-mounted double-circuit gas boilers with a closed combustion chamber with forced deletion smoke.
Important! Retraction carbon dioxide and oxygen supply is carried out through separate or concentric chimneys (air ducts) - a special sensor independently regulates the fan speed depending on the length of the pipe for removing combustion products.
Advantages:
- high quality and efficiency;
- rational placement - possibility of installation close to the wall;
- the ability to use mains or liquefied gas (after replacing the nozzles and making changes to the settings);
- fast water heating;
- smooth start;
- compact dimensions;
- light weight (weight up to 45 kg);
- reliability;
- long warranty (24 months).
Flaws:
- high cost (52-55 thousand rubles).
Baxi Luna-3 Comfort 240 Fi
Double-circuit gas boiler Baxi Luna-3 Comfort 240 Fi for wall installation The wall-mounted double-circuit gas boiler from Baxi is perfectly adapted to the specifics of operation in the CIS countries. It works even with minimal gas supply. The equipment has a removable digital panel, which allows you to install it in any convenient place. It also acts as a room temperature sensor. It runs on fuel from a line or bottle. A filter is provided for the water supply. The equipment has high quality workmanship and excellent functionality.
Advantages:
- stable operation at low gas pressure;
- closed combustion chamber;
- special anti-corrosion coating of copper components of the heat exchanger;
- possibility of connecting an additional boiler for a hot water supply system;
- two heating modes (normal and warm floor);
- timer with weekly programming;
- it is possible to connect an outdoor temperature sensor;
- digital monitor, which displays all the necessary information;
- electronic self-diagnosis.
Flaws:
- high cost (45-47 thousand rubles);
- Sensitivity of electronics to power surges - it is necessary to connect through a stabilizer.
Bosch Gaz 6000 W WBH 6000-24C
From a well-known German company it was created adapted to the climatic conditions of Russian regions, as well as the characteristics of domestic electrical and gas networks.
Double-circuit heating boiler Bosch Gaz 6000 W WBH 6000-24C (Germany) wall-mounted Advantages:
- compactness;
- modern design;
- high efficiency;
- stability of operation at constantly changing gas pressure;
- the ability to connect to a cylinder or line (after changing burner nozzles and adjustments);
- modern smoke exhaust system;
- high security;
- ideal price/quality ratio;
- high quality assembly.
Flaws:
- quite high cost (27 - 33 thousand rubles)
- small thickness of steel body parts.
Navien Deluxe 24K
Double-circuit boiler with combustion chamber closed type, a highly functional unit. It has a closed combustion chamber. Adapted to working conditions in the post-Soviet space.
Double-circuit gas boiler with increased functionality Navien Deluxe 24K Peculiarities:
- Built-in frost protection - if the temperature of the liquid in the heating system drops to 10 degrees, the pump automatically turns on; upon further cooling to 6, the burner starts until the water reaches 21ºС.
- Stable operation at low pressure in the gas and water pipes - the system operates at the corresponding indicators of 4 bar and 0.3 bar.
- A control panel is provided.
Advantages:
- separate stainless heat exchangers;
- modulated boost, increasing efficiency;
- internal components made of high quality copper;
- affordable price;
- high quality assembly;
- wide functionality.
Flaws:
- instability of outlet water temperature.
Protherm Cheetah 23 MOV
These devices are perfect for installation in apartments and country houses. They represent double-circuit boilers, which allows you to heat water and simultaneously heat the room. Efficiency – up to 93%.
Advantages:
- ease of operation;
- a monitor showing all the necessary information about the operation of the device;
- automatic diagnostics;
- several modes - warm floor, comfort and winter/summer;
- there is an option for connecting automatic weather monitoring systems;
- built-in pump;
- protection against freezing and overheating;
- operates from a gas line or cylinder.
Wall-mounted gas heating boiler Protherm Gepard 23 MOV Flaws:
- It is imperative to install a separate filter on the incoming water to protect the boiler system from salts;
- Possibility of installation only if there is a chimney in the home.
Rating of wall-mounted condensing gas boilers
Vaillant ecoTec plus VUW INT IV 246
Wall-mounted gas boiler made in Germany Vaillant ecoTec plus VUW INT IV 246 German gas boiler. The thermal power of the unit is 20 kW, which allows it to be used for heating housing up to 200 square meters. m, the device is designed for stable water heating and heating. To increase the temperature of the water in the pipeline, a hidden condensation system is additionally turned on, due to which it is possible to achieve the declared performance with significantly lower fuel consumption.
Peculiarities:
- Built-in function for increasing power in DHW mode.
- Also suitable for low temperature heating systems.
- External and internal oxygen supply to support combustion.
- Backlit display.
- Electronic ignition.
- Heat exchanger made of stainless alloy.
- Built-in pump.
- Expansion tank 10 l.
Advantages:
- modern design;
- high quality;
- efficiency.
Flaws:
- connects to shared network only through a voltage stabilizer;
- high cost (75-77 thousand rubles).
Baxi Duo-tec Compact 24
An inexpensive boiler made in Italy, with a closed combustion chamber and heat exchangers made of of stainless steel. The model has simple and convenient controls. Installation of the unit is not technically difficult.
Important! The device has an adaptation system to different operating conditions. Even if the gas pressure drops, the rated power is maintained.
Gas heating boiler made in Italy Baxi Duo-tec Compact 24 with LCD display Advantages:
- light weight;
- compactness;
- high efficiency;
- low noise and vibration levels;
- efficiency;
- quality components and reliable assembly.
Flaws:
- dependence on power parameters in the network;
- quite high cost (45-53 thousand rubles).
Rating of floor-standing single-circuit gas boilers
Viessmann Vitogas 100-F GS1D870
Gas single-circuit boiler Viessmann Vitogas 100-F GS1D870 floor-standing This model is a single-circuit gas boiler with an open combustion chamber. Its thermal power is more than 27 kW. Due to its small dimensions, there are no installation problems - it can be located even in a small room. The products of this manufacturer are always of high quality.
Advantages:
- high efficiency;
- heat exchangers are made of gray cast iron;
- weather-compensated automation;
- periodic ignition system;
- silent start;
- compact dimensions;
- modern design;
- economical work.
Flaws;
- high cost (141-143 thousand rubles).
Prothrem Bear 30 KLOM
The equipment is a single-circuit boiler, which is manufactured in Slovakia. It has an open combustion chamber. Heat exchangers are made of high quality cast iron. Excellent for heating residential buildings, premises industrial purposes and country houses.
Single-circuit floor-mounted gas boiler Protherm Medved 30 KLOM Advantages:
- electric ignition;
- atmospheric burner made of stainless alloys;
- smooth power adjustment;
- informative monitor;
- protection of components from condensation;
- cooling circuit;
- winter/summer mode is provided;
- compact dimensions;
- easy installation;
- reliable assembly.
Flaws:
- open combustion chamber;
- enough high price(45-55 thousand rubles);
- the need for a chimney.
What kind of boilers should you use? On the heating equipment market today there are many models of units from various manufacturers, which have different modifications. But from this variety it is necessary to choose devices that have an optimal price/quality ratio, taking into account the required power and functionality.
The modern market is truly saturated with heating equipment from different manufacturers. This also applies to heat generators using natural gas. Even if you know all the necessary parameters well, choosing among many brands will not be easy. In this article, we decided to compile a general rating of gas boilers, the purpose of which will be to help the average user decide and make the optimal choice.
Types of gas boilers
For a general understanding, we first present a brief classification of heat generators. They are divided into different types according to several criteria:
- according to the method of fuel combustion and flue gas removal: these are units with an open (atmospheric) and closed (supercharged) combustion chamber;
- according to the efficiency of using the combustion heat of gas: there are 2 categories - conventional and condensing boilers;
- in terms of functionality: we mean the ability of a heat source to heat water for the needs of domestic hot water, this is one thing - and double-circuit gas boilers.
- according to the installation method. According to this criterion, heat generators are divided into wall-mounted (suspended) and floor-mounted.
Advice. Before you start choosing a brand, you should select a unit according to all the listed criteria.
On the Internet you can find a variety of ratings of gas boilers, but we decided to present a rating of the most popular brands in the post-Soviet space, dividing them by country where the manufacturing companies are located. So, to begin with -
Western European manufacturers
It just so happens that residents of the CIS countries divide European brands into 3 groups: German, Italian and “all the rest”. We, too, will not break away from the people and will take a look at the most famous brands of these groups one by one, and start with the German ones:
- BUDERUS;
- VIESSMANN;
- VILLANT;
- BOSCH.
For reference. Since 2003, Buderus AG has belonged to the Robert Bosh GMBX concern.
The first 3 brands are leaders and trendsetters in the field of heating boilers; BOSCH joined them a little later. They all make the best gas boilers you can think of. The corporate colors, blue for BUDERUS, red and gray for VIESSMANN, are well known to a wide range of users.
The first 2 brands offer the widest range of heat generators of all types and capacities. At the same time, VAILLANT and BOSCH focused on wall-mounted boilers. And the reviews from homeowners sound very eloquent: if you take a floor-standing unit, then BUDERUS or VIESSMANN, and if you take a wall-mounted unit, then VAILLANT or BOSCH is better. But they all have the following characteristics in common:
- high quality products;
- reliability in operation;
- constant implementation of the latest technical solutions;
- high efficiency (efficiency up to 97%);
- availability of the widest range of functions;
- a complete set of process automation tools.
Unfortunately, while leading the rating in terms of quality, German boilers firmly hold the lead in cost. This is the highest price category and products of these brands are not available to everyone. Somewhat cheaper than others VAILLANT and BOSCH, but not much. Boiler maintenance is just as expensive.
If we compare boilers made in Italy and Germany, the former clearly win in price. Most popular brands:
- BAXI;
- ARISTON;
- BERETTA.
The BAXI trademark can compete with the “Germans” in reliability and quality; it is not without reason that it has gained wide popularity in Russia and other post-Soviet states. The range of their products is equally wide and covers the entire domestic sphere - from simple floor-standing boilers to wall-mounted condensing boilers. Same as with German manufacturers, BAXI heat generators are efficient and fully automated, from ignition to control by telephone or via the Internet.
Having just appeared on our market, the brands ARISTON and BERETTA showed good performance at affordable prices. Over the years, the ratings of double-circuit gas boilers of these brands have fallen, and many negative reviews have appeared regarding the reliability of operation, the quality of components and materials. At this time, the products, despite their reasonable cost, are not in great demand. Wall-mounted gas boilers and water heaters from these manufacturers are well known, floor models bought much less frequently.
A brand that stands out sharply from the group of “everyone else” has firmly settled in the middle price category and is gaining popularity in our market at an accelerated pace. This is the Slovenian brand PROTHERM, which has already gained a reputation for its reliable heating equipment. Wall and floor standing boilers, offered by the Slovenian manufacturer, may not be as stuffed with the latest achievements in the field of heating technology as the “Germans”, but they are affordable, reliable and adapted to the realities of the CIS countries.
Positive reviews about PROTHERM boilers come not only from users, but also from the craftsmen who install them. This suggests that service maintenance The technology is also relatively inexpensive.
Asian manufacturers
Of the Asian boilers for heating, 2 can be distinguished famous brand and a whole group of products from the Middle Kingdom, which are quite difficult to list, and it is not necessary. People have long formed their opinion about Chinese technology; to confirm this, we will add that the purchase Chinese boiler is a lottery, no matter how attractive the price. We will not review them, nor recommend them; everyone makes the decision to purchase these products for themselves.
One of the world-famous South Korean manufacturers of wall-mounted and floor-standing gas boilers is KITURAMI. We must pay tribute to the products of this trademark: they are very reliable and high-tech, have all the same functions as the “Germans” and are just as well automated. The problem is that KITURAMI also “bites” on price and then the eminence of the brand begins to play a role, and here European brands benefit.
As for the reviews, they are mostly positive, that is, this “Korean” is on the same level as BAXI and BOSCH boilers. Also, the design of the unit is adapted to low gas pressure and other delights of the Russian outback. Definitely recommended for use.
Another, already budget version gas boiler for the home - a Korean unit of the NAVIEN brand. It appeared on our market relatively recently and has taken root well since then. Known for its wall-mounted heat generators, which have a full range of necessary functions and a good degree of automation. Despite the obvious budget, it received many positive reviews. Breakdowns do occur, but they can be fixed quickly and inexpensively. NAVIEN is a technique that people say has an optimal price-quality ratio.
Conclusion
As you can see, choosing a gas boiler is not easy even among manufacturers. If funds allow, you should not fall below the average price category, where the “Chinese” and CIS countries boilers are located. We did not talk about the latter, since they do not top any ratings. By and large, such boilers are a body made by us, equipped with imported automation, sometimes again Chinese.
With the beginning heating season Owners of country houses are often faced with the question of which heating boiler is worth purchasing. This article is devoted to an overview of the most popular double-circuit gas boilers. The rating of double-circuit wall-mounted gas boilers was compiled for companies from Baxi, Protherm and Navien.
We considered models that were close in price category and technical specifications with a power of about 20 kW and these are the following models: Main Four 24 F (Baksi), Gepard MTV 23 (Proterm) and Ace 24k (Navien).
Model Manufacturers
The Italian manufacturer Baxi is in high demand for Russian market. Almost all regions of the country have service centers that repair equipment. Models are assembled and parts are produced in the brand’s homeland and in a number of European countries. Models with a capacity of 18-24 kW are supplied to the Russian market.
The Slovak manufacturer Protherm is known and distributed in all regions of the Russian Federation. The service network of this manufacturer is also widely represented in all major regions of Russia. The company produces boilers on its own territory; components are produced in Slovakia and Germany. The range of models imported to Russia is 11-23 kW.
The Korean manufacturer Navien was introduced to the world relatively recently, but thanks to practical design and affordable cost, boilers from this manufacturer quickly became popular. The production of parts and assembly of boilers is carried out directly in South Korea.
A very wide range of models with a power of 10-40 kW is supplied to Russia.
3. Proterm
Design of compared models
The boiler from Baksi is a boiler based on a bithermic heat exchanger and the ability to automatically switch to DHW supply mode. The design provides circulation pump, expansion tank with a volume of 6 liters, safety sensors. All connections are cast from copper. The coolant is heated by a heat exchanger alternately in two circuits.
The boiler from Proterm has a copper heat exchanger for the primary circuit and a second steel heat exchanger for the DHW circuit. A three-stage control valve is provided to switch operating modes. It is also equipped with a German circulation pump and expansion tank 5 liters, safety sensors.
The connections, like those of Baksi, are cast from copper. An important difference between this model and the previous one is the presence of a second heat exchanger, which ensures independent heating of water for heating and the hot water system.
The boiler from Navien is also equipped with two independent heat exchangers, but both of them are cast from steel. Let us remember that the previous model had one of the heat exchangers made of copper. A steel heat exchanger is much more reliable than copper.
All built-in equipment - circulation pump, expansion tank, sensors and valves are manufactured directly in South Korea.
2. Proterm
Technical parameters of models
All the models under consideration are made according to the coaxial circuit. This means that the same pipe has two compartments, through one of which air is introduced into the boiler, and through the other, exhaust gases are removed.
Dimensions of the tested models (HxWxD, cm):
- Baksi 73x40x29.9
- Proterm 74.2x44x26.5
- Navien 72.2x44x26.5
Heating capacity of models (kW):
- Baxi from 9.3 to 24
- Proterm from 9.0 to 24
- Navien from 9.3 to 24
Model efficiency (%):
- Baxi 92.9
- Protherm 93.2
- Navien 91
Volume of produced hot water (l/min)
- Baksi 13.7
- Proterm 13.8
- Navien 13.8
All models are capable of heating an area of up to 220 m2.
3. Proterm
Model functionality
To compile a rating of double-circuit wall-mounted gas boilers, all compared boilers have the ability to adjust the burner and the function of maintaining the temperature in a separate heating circuit. In addition, all models have frost protection.
Models from Baksi and Proterm provide the ability to connect a room temperature sensor and an outside temperature sensor, thanks to which you can implement the climate control function.
Baksi, unlike other models, has a “warm floors” mode, and the Navien model has a remote control unit. In addition, the Navien boiler is protected from power surges.
3. Proterm
Cost of models
Baxi 600 euros
Protherm 600 euros
Navien 500 euros.
Conclusion
Having analyzed the parameters of the boilers according to the indicated parameters, it is easy to conclude that the rating of gas boilers was distributed as follows:
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