Low power boilers - a budget option for a country house

Updated: 03/12/2021 13:37:53

Expert: Konstantin Borisovich Polyakov

*Review of the best according to the editors of expertology.ru. About the selection criteria. This material is subjective in nature, does not constitute advertising and does not serve as a purchase guide. Before purchasing, consultation with a specialist is required.

In many regions of Russia in winter the air temperature drops significantly below zero. Therefore, in houses, workshops and workshops it is impossible to do without heating. Currently, the most popular are closed circulation systems in which water or antifreeze plays the role of coolant. Boilers are used to heat the liquid. Since heating devices cost a lot of money, consumers start choosing from cheap models. Our experts will help you find effective devices among budget boilers.

Recommendations for choosing a heating boiler

Fuel type.

The most important criterion for choosing a boiler is the type of fuel that will be used as an energy source.

1. Natural gas remains the most affordable and convenient option for heating residential buildings and industrial facilities. The gas boiler must be equipped with safety systems to eliminate the possibility of poisoning or explosion if there is a malfunction.
2. In those regions where there is no gas main, solid fuel boilers have to be installed. They can operate on wood, pellets, coke, peat and coal. The only drawback is the impossibility of automating the process. Solid fuel quickly burns out, after which cleaning and subsequent laying of a new batch of firewood is required.
3. Electric boilers are considered the simplest and most environmentally friendly. Modern models can be controlled remotely, but not every electrical network can withstand the load of a powerful heating element. And the cost of electricity is still high in Russia.
4. Liquid fuel boilers are inferior in popularity to gas and solid fuel models. Such devices are quite expensive; in addition, you will have to purchase and bury a large container for storing diesel fuel in the ground.

Thermal power.

All boilers have a certain maximum thermal output. This indicator allows you to select a device taking into account the area of ​​your home or workshop. Experts advise sticking to a simple formula. To heat a room of 10 square meters. m with a ceiling height of 2.5 m requires 1 kW of thermal energy. But since losses are inevitable during heat transfer, it is better to purchase a boiler with a power reserve (15-20%).

Heat exchanger material

. The heat exchanger is most exposed to the aggressive effects of fire and water. Manufacturers use several materials to produce this critical part.

1. The cheapest boilers are equipped with a steel structure. Their service life is limited to several years due to rapid corrosion.
2. Stainless steel heat exchangers are considered more durable. They are not afraid of corrosion, but are expensive.
3. Copper components have good heat transfer and low weight. They are compact, but expensive and susceptible to impact.
4. Cast iron compares favorably with other materials in its corrosion resistance, reliability and durability. Only with uneven heating can the heat exchanger crack.

We have selected 14 of the cheapest boilers for review. You can purchase them in specialized stores in our country. When allocating places, the editors of the expertology magazine relied on the opinions of experts, taking into account the opinions of Russian consumers.

Low power boiler houses

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Author: Alyansteplo

Date: 09/07/2015

Low power boiler houses

- these are installations for providing facilities with heating and hot water supply with a power of up to approximately 380 kW. Don’t be confused by their supposedly “low” power: they are suitable for industrial and commercial enterprises, factories and farms, effectively heating up to 3400 m2 of space with ceilings up to 2.7 m high.

Usually, either cast iron boilers or steel boilers are installed in low-power modular boiler houses. Also included

includes make-up / circulation pumps and draft systems, and for steam boilers, heat exchangers, pumps for pumping condensate and condensation tanks are additionally installed, as well as a list of auxiliary and additional equipment, which depends on the production requirements and operating conditions of a low-power boiler room.

In Russia, low-power boiler houses are widely used for heating and providing hot water supply to detached buildings. Such boiler houses are very effectively used as an addition to centralized heating, but can also be the only source of heat if it is not necessary to heat a very large area. Their autonomy, ease of assembly and operation, as well as high efficiency have made them a very popular solution both for temporary facilities (for example, concert and fairgrounds, construction sites, etc.) and for permanent ones (new neighborhoods, cottages, private houses, production facilities, offices, public premises “cut off” from central heating mains).

Low-power boiler systems can operate on any type of fuel

: natural and liquefied gas, diesel fuel, electricity, pellets, wood or coal - the choice in this case depends on the possibility or impossibility of supplying electricity or gas to the boiler room, as well as on specific requirements. In this case, the boiler room can be built into a heated room, can be attached, or can be placed separately.

offers its services for the design and construction of low-power boiler houses. The range of our work includes:

• drafting and approval of the project;
• obtaining all necessary permits from government authorities;
• assembly of the boiler room and delivery to the place of work;
• connection and commissioning;
• service maintenance.

Our company has all the necessary certificates and permits, which allows us to guarantee high quality and absolute legality of our activities. We use only tested, proven equipment and work strictly within the framework of the contract with impeccable adherence to terms and conditions.

Turnkey boiler houses from AllianceTeplo are reliable, safe and easy-to-use installations that will provide your facilities with heat economically and with high efficiency.

To calculate the cost of the boiler room, please fill out the questionnaire for the boiler room. The questionnaire can be filled out online or downloaded. For any questions: phone email

Fill out the questionnaire online

Calculate the cost of the boiler room

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Rating of the cheapest boilers

The cheapest electric boilers

For now, the high cost of electricity is holding back the spread of electric boilers. Such devices are characterized by maximum efficiency, the possibility of remote control, environmental friendliness and safety. Experts liked the following budget models.

ZOTA Balance 9 single-circuit

Rating: 4.7

The cheapest electric boiler in our review is the Russian device ZOTA Balance 9. The model has a modest thermal power (9 kW), which is enough to heat a small house (up to 90 sq. m. area). The manufacturer has provided the ability to select the type of electrical network (220 or 380 V). Experts drew attention to the presence of a connector for connecting external control and the lightness of the model (9.5 kg). Among the useful functions, there is only overheating protection.

Russian consumers are satisfied with its compactness, reliability and ease of use. Dissatisfaction is caused by the uninformative instructions, which do not provide answers to simple questions. It is also difficult to obtain information from service specialists.

Advantages

• low price;
• two types of electricity;
• lightness and compactness;
• convenient control.

Flaws

• incomplete instructions;
• incompetent support service.

EVAN Warmos-IV-5 5.1 kW single-circuit

Rating: 4.5

For heating a small cottage or workshop, the electric boiler EVAN Warmos-IV-5 5.1 kW is suitable. The single-circuit model is connected to a single-phase network, the thermal power is limited to 5.1 kW. Given the high efficiency (99%), you can create a cozy atmosphere in a room of up to 50 square meters. m. Experts liked the ease of control (electronic), the presence of a display, and low weight (15 kg). Setting up the device is not difficult; the Czech stainless steel heating element also deserves praise. The boiler wins silver in our review.

In reviews, users speak flatteringly about such qualities of the device as ease of installation, automatic selection of heating stages, and reliability. Among the disadvantages, low power and forced heating limitation are mentioned.

Advantages

• stylish appearance;
• ease of control;
• compactness and lightness;
• efficiency.

Flaws

• modest performance;
• power limitation.

Low-power gas boiler 5 kW - operating conditions

Basically, low-power gas boilers of 5-7 kW are used for heating small country houses or small-sized apartments with an area of ​​up to 50 m². But, if you decide to purchase such a unit, you should take into account that the adjustment for heat loss can range from 10 to 30%.

…

A 5 kW gas boiler is designed for heating buildings that do not have a chimney. Therefore, all known models of such heating devices are equipped with a closed firebox. They do not require a full smoke exhaust system. To remove combustion products, a coaxial type pipe will be sufficient. In most cases, it comes complete with the boiler. Such a chimney is carried out through a hole in the wall and out into the street. The best option is if it is located horizontally.

When choosing low-power devices, you should accurately calculate whether such a boiler can sufficiently heat the available area. If the structure is poorly insulated, and the doors and windows are ventilated, the device’s performance of 5 kW may not be enough.

In addition, it should be taken into account that the manufacturer indicates the maximum power of the unit in the passport. And if the gas boiler constantly operates at its maximum capacity, this will quickly lead to wear and tear. Therefore, in this case, it is important to accurately determine whether the specified performance is sufficient to heat your room.

…

Gas boilers with a power of 5 kW are equipped with a standard set of necessary functions and are quite easy to use. They lack modern control, monitoring and safety systems that many units with higher productivity are equipped with. Also, low-power devices do not have a display, control panel or the ability to connect other heating systems, for example, “warm floors”.

Favorable operating conditions for 5 kW heating boilers

Gas boilers with a capacity of 5 kW will efficiently heat a house or apartment if certain operating conditions are met:

• good wall insulation;
• no gaps in window and door openings;
• ceiling height no more than 2.7 m;
• absence of severe prolonged frosts.

Advantages and disadvantages of low-power units

The advantages of low-power units include:

• small dimensions;
• low fuel consumption with fairly high efficiency;
• affordable price;
• ease of operation;
• ease of installation.

Disadvantages of gas boilers with low productivity:

• limited functionality;
• small selection of models;
• difficult to find components;
• limited operating conditions.

…

This wall-mounted single-circuit parapet-type gas boiler has a heat exchanger made of steel. Ignition is carried out using electricity by pressing a button. The unit is equipped with a gas burner made in Italy by Polidoro. Safety is ensured using the gas valve 630 EUROSIT (Italy). The kit includes a coaxial pipe.

The boiler has the following characteristics:

• Efficiency – 90%;
• weight – 30 kg;
• fuel consumption – up to 0.56 m³/hour;
• warranty – 12 months;
• country of origin: Ukraine.

THERMOBAR KS-GS-5 s

The presented single-circuit floor-standing model is characterized by efficiency and silent operation. If a failure occurs, the Italian EUROSIT safety system blocks the fuel supply.

The gas boiler is equipped with a stacked sectional burner made of stainless steel, which ensures the environmental friendliness of the smoke produced and the absence of soot accumulation in the combustion chamber. The heat exchanger of the unit is made of steel. The coolant temperature ranges from 40-90ºC. The kit includes a coaxial type chimney. This boiler has connections for connecting to the heating system on both sides.

The gas unit has the following characteristics:

• Efficiency – 90%;
• weight – 40 kg;
• fuel consumption – up to 0.56 m³/hour;
• warranty – 12 months;
• country of origin: Ukraine.

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The cheapest solid fuel boilers

In remote settlements where there is no main gas supply, solid fuel boilers come to the rescue. They are not highly efficient; they have to be constantly monitored and cleaned regularly. But you can throw firewood, peat and coal into the firebox. Here are some budget devices.

Teplodar Cooper Praktik 8 single-circuit

Rating: 4.8

If the task is to buy a cheap solid fuel boiler, then the choice should fall on the domestic device Teplodar Kupper Praktik 8. It is suitable for heating a house with an area of ​​up to 70 square meters. m. Firewood, peat briquettes and coal can be used as fuel. The model is equipped with a 6 kW heating element, thanks to which it is possible to maintain the set temperature in the house. The manufacturer has provided the possibility of external control. Experts praised the boiler for its compactness and lightness (60 kg), and a long warranty period (3 years). The model becomes the winner in our review.

Russian consumers speak flatteringly about its compactness and lightness, the presence of a heating element, and ease of installation and maintenance. The disadvantages include low power and primitive design.

Advantages

• compactness and lightness;
• 3-year warranty;
• ease of operation;
• built-in heating element.

Flaws

• low power;
• outdated design.

Low power gas boilers

Low power domestic gas boilers

Owners of small premises do not need to overpay for very powerful gas equipment. Low-power household gas boilers - less than 20 kW - can handle heating an apartment or small house. They will also be an excellent solution in the country house, garage or bathhouse.

Low-power boilers are available in a wall-mounted version - small in size and light in weight. As a rule, these are boilers with a closed combustion chamber, so they can be successfully used for heating apartments. The only drawback is that low-power gas wall-mounted boilers are often produced in a single-circuit design, since their power is not enough to heat a sufficient amount of water.

At the same time, if you buy such a boiler and additionally install a capacitive water heater, such a set of equipment will provide stable comfort to the residents of the house.

Low-power boilers are quite popular on the Russian market due to their compactness, functionality, ease of maintenance, high level of reliability and safety of use. This is a universal option for heating small areas.

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