10 most economical boilers

When building a home heating system, the owners are repelled by a number of factors. This includes the availability of communications, the price for the heat source, the climatic conditions of the region, and the safety of operation, etc. It is important to keep in mind that it is economical, so that during the cold season you do not throw money into the chimney. It should be noted that even the most economical boiler will not save the owners if the house is poorly insulated, and the heating system is made illiterate. When choosing a heating appliance, the price of a boiler is often the main factor. But the immediate benefit can turn into serious spending on gas or electricity. Gas and electric boilers are able to provide modern home with heat and hot water. How to choose the most economical option?

• In settlements where there is a gas pipeline, it is economically feasible to purchase gas boilers. At the first stage of purchase and connection, homeowners will have to face serious investments. The boiler itself will cost a lump sum, but most of the time, nerves and money will have to be spent on the design and supply of the gas pipeline to the house. Additional funds will be needed for the creation of effective ventilation, organization of space in the boiler room in accordance with regulatory documents. Gas workers and firemen will become frequent uninvited guests. But in the future it will be possible to save a lot when heating a house during the heating season.
• Not everywhere near the house passes the gas main. In this case, you have to choose alternative sources of heat. One of the easiest and safest ways to heat a house is to use electric boilers. Since there is electricity in most localities, the homeowner will only need to choose a device with optimal power and efficiency.

When calculating you should use a simple formula. It is believed that the heating of 10 square meters. m house height of 3 m requires 1 kW of energy. Therefore, for country houses up to 100 square meters. m. suitable electric boiler with a maximum power of 10 kW. It is better to have a small margin of several kilowatts, but you should not get too carried away too. Due to the frequent switching on and off of the boiler, not only will the load on the heating elements increase, but also electricity consumption will increase. In order to estimate roughly how much electricity will cost the heating, it is necessary to determine the average daily operation of the boiler. To do this, the power of the device is multiplied by the number of hours of continuous work and is divided by 2. This figure is multiplied by 30 days, and then by the number of months of the heating season. It remains to find out the tariff for electricity and multiply by the resulting consumption. The percentage of error depends on the vagaries of the weather, but usually it does not exceed 20% of the calculated value.

Our review included the most economical gas and electric boilers. The rating is made on the basis of the analysis of technical characteristics and taking into account reviews of homeowners-compatriots.

The most economical gas boilers

Gas boilers are widely used in heating systems of private houses, shops, car repair shops, etc. They allow to heat large areas, while also providing people with hot water.

5 Lemax Premium 10

Domestic gas boilers successfully compete in the domestic market due to its affordable price and economy. A striking example is the model Lemax Premium-10. This single-circuit device is designed for heating houses up to 100 square meters. The manufacturer managed to achieve high efficiency (90%), which reduced the consumption of natural gas to 0.6 cubic meters. m per hour The use of high-quality steel with anti-corrosion heat-resistant coating helped reduce the cost of the device.

A distinctive feature of the boiler is energy-independent from the power grid, which gives another item of savings. The Italian gas-burning device helps to optimize the operation of the boiler. Domestic consumers point out such advantages of “Premium-10” as availability, economy, compactness, safety and reliability. To prevent the device from freezing in the frosty winter, it is necessary to carry out the maintenance in time.

4 Buderus Logamax U072-24

Traditional boilers are not as economical as condensing boilers, but they are much more affordable. And if the device is developed by German engineers Buderus and Bosch, then there is no doubt in its effectiveness. Thanks to the compact dimensions of 40x30x70 cm, a closed combustion chamber and minimal noise (38 dBA), the unit can be installed directly in the kitchen, while it can heat an area from 70 to 240 square meters. m

The heat exchanger in U072-24 is made of copper. With the same power indicators with cast-iron and steel models, copper boilers are considered more economical, since they provide accelerated transfer of the heat of combustion of fuel to the coolant circulating through pipes. Other product benefits include an integrated 3-speed circulation pump, reliable electronic control and easy maintenance. There is also a minus - some owners name the autodiagnostic system to inject the same error, which sometimes requires a flashing of the board.

3 NAVIEN GA 35KN

To heat large houses, offices and shops with minimal costs allows the gas boiler NAVIEN GA 35KN. This two-circuit model of convection type is able to heat a building up to 350 square meters. m., providing people with heat and hot water. The outdoor unit has a rather high efficiency (91.4%), which allows minimizing the consumption of natural gas to 3.34 cubic meters. m per hour. The heating device can also operate from liquefied gas, the boiler requires connection to a single-phase power supply network. Another consumer can save on the purchase of the boiler itself, since the model compares favorably in value from its competitors.

Owners of cottages, shops, car repair shops note such positive characteristics of the gas boiler NAVIEN GA 35KN, as economy, availability, high quality. Of the minuses worth highlighting the noise, the need to use only original parts.

2 Vaillant ecoTEC plus VU INT IV 306 / 5-5

“Vilant” is one of the best European manufacturers of high-tech products for heating and cooling residential buildings. In its assortment are many reliable and high-quality models of boilers, which include the wall unit of the latest generation of ecoTEC plus VU INT IV. Users speak of it exclusively in a positive manner, noting that installing a boiler in their homes resulted in at least a 20% savings in operating costs.They consider the layout of the heating system with this boiler and heated floors to be especially successful - in this version it pays off as quickly as possible.

One of the factors for economical boiler operation is the use of a modulation burner. Its implementation in the design provides a smooth adjustment of the power of work in a wide range from 16 to 100%, depending on the need for heat. Due to the fact that the frequency of the on and off cycles is minimized, a longer maintenance-free and overall service life of the unit is ensured. Its only drawback is the high cost.

1 BAXI Duo-tec Compact 1.24

The most significant gas savings are condensation units, which are capable of extracting thermal energy from flue gases, irretrievably lost in convection-type devices. The boilers of the Duo-tec Compact range are not an exception, the efficiency of which, according to some sellers, with a load of up to 30% reaches 107.6%. And although they exaggerate (based on the technical characteristics of the boiler gives up to 91.2%), you see, this indicator is very good for gas equipment.

Even more economical device becomes due to the design. The serpentine stainless steel heat exchanger, the system of adaptive control of combustion and thrust make it possible to minimize the cost of heating a house from 100 to 240 square meters. It is worth noting the presence of built-in automation to change the temperature of the coolant depending on the weather outside. Thus, maintaining a stable micro mode is inexpensive in time and effort, which is also an indirect indicator of cost effectiveness.

The most economical electric boilers

Electric boilers can be used as a backup or main source of thermal energy. They are used in small buildings, but with the help of electrical appliances you can achieve complete automation of the heating system.

5 ZOTA 9 Lux

Looking at the cost of this electric boiler, someone may doubt its reliability. However, after studying its characteristics, we did not reveal any obvious design flaws. Moreover, by the number of functions there are no equal to it even among more expensive models. In a 9-kilowatt electric boiler, designed for heating 90 sq.m., a number of “luxury” features are implemented: electronic control based on the operation of 5 controllers, protection of the control unit against overvoltage up to 400V, weather-dependent auto-correction of the heat carrier temperature, function for connecting a heated floor and etc.

From the point of view of heat generator efficiency, the chronothermostat function is interesting - with its help, the user sets the program, at what time the house should be warm, and at what time the microclimate can be made cooler. Such a thermostat with a timer is very convenient for setting up work at the most advantageous tariff for power consumption — night. For the sake of fairness, we also mention the apparatus’s drawbacks: in particular, users warn about the high cost of replacing failed heating elements, so that it is better to preface the start of operation by reading the instructions.

4 Protherm Skat 6 KR 13

Consumers had a lot of time to check how reliable the Slovak Skates are in real conditions: they have been produced in their homeland since 1992, and in Russia, according to the manufacturer, more than 250 thousand units have already been sold. We have not found any negative reviews and explicit criticism on the network, and even in specialized forums where there is a rather skeptical attitude towards budget brands, they are in good standing. And no wonder - the wall heater, among other advantages, is simple and versatile installation (there is no need to maintain a 3-phase network, you can connect weather-dependent automation, a cumulative DHW boiler and organize a cascade heating system).

The developers took a very responsible approach to the issue of the model's efficiency, having ensured high (99.5%) efficiency and provided for a step-wise power switching on in 1 kW increments. In this case, the heating elements are switched alternately, and the load on them is distributed evenly. Protective systems against overheating and freezing, as well as protection of the pump are responsible for the durability of the product - according to its technical characteristics it is at least 10 years.

3 EVAN Warmos-IV-9,45

Evan JSC is turning 23 in 2019, and during this time the company has mastered the production of a wide range of heating equipment. This means that the entire system of heating and DHW, except for pipes and valves, can be completed with its products. Of particular interest among potential buyers is an updated 9.45 kW electric unit of the Warmos-IV series, which can heat a house up to 94.5 sq. M. m

In order to optimize energy consumption, the mechanical thermostat was replaced by an electronic thermal control system. Now the boiler "itself" determines how many heating elements of 3 must be started to ensure the specified temperature with an accuracy of 1 °. If necessary, you can use and manual power limit. The self-diagnostics functions, the improved control panel with LED indication and the ability to connect remote control modules make it possible to call the boiler modern, economical and, what is important, accessible to a wide consumer circle.

2 Vaillant eloBLOCK VE 12

The most economical single-circuit boiler in our review was the model Vaillant eloBLOCK VE 12 (efficiency 99%). An electric appliance is able to heat a house up to 120 square meters. m in the presence of a three-phase network. In addition to high efficiency, the device boasts an elegant appearance. There is only one key for adjustment, the microprocessor, sensors, sensors, etc. do the rest. Economical power consumption is achieved due to the smooth increase of power, the presence of additional options such as anti-freezing mode, summer operation, weather-dependent control. The device can be equipped with a remote control, which allows owners to get directly from the cold to a warm home.

Users flatter about the efficiency of the Vaillant eloBLOCK VE 12 electric boiler, its simplicity and neat appearance. To increase the service life, you must connect a voltage regulator.

1 ACV E-Tech S 240

The most economical double-circuit boiler is a model of premium class ACV E-Tech S 240 (efficiency 99%). Due to the high heat output (28.8 kW), the device will cope with heating a large house, providing its residents not only with heat, but also with hot water. This high-performance heating device is controlled by electronics, which helps minimize electrical energy consumption. The heat exchanger from stainless steel also promotes an economic operating mode. To reduce the heat loss of hot water helps boiler, made on the principle of "tank in the tank." Electronic control allows to increase service life, prevent the formation of scale by optimizing heating modes.

The owners of country houses and cottages highlight such advantages of the ACV E-Tech S 240 electric boiler as efficiency, reliability, versatility and noiselessness. The main drawback of the device is the high price.

Popular vote - who is the best manufacturer of the most economical boilers?
We vote!

ARISTON

Lemax

NAVIEN

ACV

Vaillant

RusNIT

Baxi

Buderus

EVAN

Protherm

ZOTA

Other

Total votes: 67

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