Choose a boiler for heating a private house with an area of 150 square meters

Selecting the correct boiler is essential for maintaining a warm and comfortable home, particularly for a private residence larger than 150 square meters. The boiler is the central component of your heating system, producing steam or hot water that warms your house from the inside out. With so many different models and types on the market, it can be difficult to find the ideal fit. Nonetheless, choosing a boiler can be made easier if you are aware of the heating requirements of your home and the various options available.

Assessing your home’s heating needs is crucial before delving into boiler type specifics. The right boiler size and type depend on a number of factors, including your home’s size, insulation quality, local climate, and hot water demand. Generally, a 150-square-meter home needs a boiler with enough heating capacity to keep the interior at a comfortable temperature all year round without wasting energy.

The kind of fuel a boiler uses is one of the most important factors to take into account when choosing one. Natural gas, oil, propane, electricity, and even renewable energy sources like biomass can all be used to power boilers. Your decision may be influenced by the cost and availability of fuel in your area as well as environmental factors. In addition, the efficiency, practicality, and environmental impact of each fuel type have advantages and disadvantages.

The efficiency of the boiler is another important consideration. Efficiency ratings on contemporary boilers show how well they turn fuel into heat. Boilers with higher efficiency not only save energy costs but also lessen their environmental impact by using fewer resources. Long-term financial savings and environmental advantages can result from being aware of efficiency ratings and selecting a boiler with a high Energy Star rating.

Gas, solid fuel, liquid fuel or electric

In total, there are four primary types of household boilers that vary based on the fuel used:

  1. Gas (natural gas, liquefied gas). The most common and high -tech, they account for more than 60% of demand. In practice, heating with a gas boiler is one of the cheapest options, while the least laborious: you do not need to think about storage of fuel, and many, even budget, boilers are able to work autonomously, without the slightest intervention of a person, for days and even weeks. Modern gas models have an efficiency of 88-94%, multifunctional automation, up to the possibility of connecting a room thermostat, and the cost of good budget models of famous manufacturers is within 19-30 thousand. RUB (Buderus, Baxi, Protherm, Lemax). The only difficulty is a long bureaucratic process of obtaining permission to install a gas boiler.
  2. Solid fuel (firewood, stone and charcoal, peat, pellets). Solid fuel boilers are still an excellent choice in non -gas areas of Russia, or if there is access to solid fuel at lower prices. A well -known and main drawback of solid fuel models is the need for constant fate in the process of the furnace, as well as the need to organize a place for storing fuel, its harvesting and transportation. The design of modern models allows you to increase the duration of the combustion of one load to 4-6 hours, if it is firewood and up to 10-15 hours, if coal is used. However, the need for frequent fuel proceeding remains a significant drawback. Fortunately, there are also models of prolonged combustion, up to 7 days or pellet boilers with automatic supply, however, the cost of such boiler units starts from 60-90 thousand. rubles.
  3. Liquid fuel (spent oil, diesel, fuel oil, kerosene). Liquid fuel boilers – a great alternative to solid fuel. Their advantages and disadvantages are as close as possible to gas models – and not surprising, because they differ only by burners. Diesel boilers and boilers working on working out are absolutely autonomous (it is only necessary to replenish the tank in which fuel is stored), sometimes have a higher efficiency, with proper operation they completely burn fuel, releasing a minimum of harmful substances. If you try and find the source of fuel for a symbolic price (working out from the equipment of agricultural enterprises, automobile, bus or cargo parking), then operating costs can be lower than when gas heating. Despite the wrong choice, there are clear leaders of the diesel boilers market – Navien and Kiturami, it is they who recommend that we pay attention to when choosing.
  4. Electric. Electric boards are ideal in terms of comfort of operation, efficiency and functionality, however, operational costs when using them are the highest. For heating a house with an area of 150 m 2, it may take from 10 to 14 thousand. rubles per month, even taking into account reduced night tariffs. With an unlimited budget, this is an ideal option even for a house with an area of 150 m 2, however, from an economic point of view, the electric shoes are justified only when heating small private houses up to 60-80 square meters.

Efficiency and selection criteria for energy-efficient electric boat heaters

In conclusion, it makes sense to select a gas boiler right away if there is a gas line close to the home. A solid fuel or liquid fuel boiler is the best option in the absence of a gas line; the decision is based on the needs for autonomy, the availability of a specific fuel type, and personal preferences.

Selecting an appropriate boiler is essential for both efficiency and comfort when heating a 150-square-meter private residence. Important variables include fuel type, boiler size, and efficiency ratings. While oil boilers are dependable but need frequent maintenance, gas boilers are more popular due to their affordability and comparatively low emissions. When choosing the boiler size, take into account the insulation, climate, and hot water requirements of the home. The amount of fuel that the boiler turns into heat is indicated by efficiency ratings such as AFUE (Annual Fuel Utilization Efficiency). To guarantee long-term peace of mind, give priority to safety features and warranties. Professional guidance can help you sort through options and make the best decision for your particular requirements and financial situation.

The minimum necessary power of the boiler for the house is 150 kV. m.

The amount of power needed depends on how much heat the house loses. The calculations are based on the following rule: 1 kW for every 10 m 2 for an average house in the Moscow Region with a ceiling height of 2.7 m. Additionally, we advise laying down 10%–30% of the power reserve.

For instance, the minimum power required by the boiler for a 150 kV m house is 150/10 * 1.2 (20% of the reserve) = 18 kWh.

In over 90% of the cases, this kind of basic computation is sufficient. It is advisable to make precise calculations if the house has a lot of glass, high ceilings, or is located in a remote area of the country. You can use the calculator below to accomplish this.

Calculator for accurate calculations

What should the boiler’s power be? the overall capacity of heating radiators, so you must first determine how much power each radiator will require in each room. After selecting the resulting values, you will be given the minimum power required for the boiler and radiators to heat the entire house.

How to choose a boiler for heating a private house

Floor or wall

Floor models are more widely used and come in bigger sizes. There are also a tonne of energy-dependent boilers available that don’t need to be connected to the mains. Floor models typically require at least 4 m 2 areas for installation because they take up significantly more space, especially when a complex binding is involved.

Wall-mounted (hinged) models are more compact, and they come pre-configured with an air carrier, a safety valve, an expansion tank, a circulation pump, and other essential heating components. Hinge boilers are primarily energy-dependent (i.e., they require a connection to the mains to function) despite their small size and inclusion of the aforementioned components in the housing. Purchasing a generator is the better option if you want to make sure that your boiler keeps running even if the electricity goes out.

This distribution only applies to gas and electric boilers, not to wall/floor models. Due to their distinct structures and higher weights, liquid fuel and solid fuel options are only produced in the floor.

Single -circuit or double -circuit

While double-circuit models heat both the hot water supply circuit (DHW) and the heating circuit, single-circuit models are only intended to heat the heating circuit. Two contours of water do not mix.

The decision is entirely based on personal preferences and aspirations. Double-circuit models do cost 10–30% more, of course, but that is still far less expensive than setting up a hot water supply with a boiler or gas column.

Gas heating boilers: the most comprehensive selection Check List based on the models’ 2021 ratings and the selection criteria

The material of the heat exchanger

There are just three primary materials that can be used to create a heat exchanger:

  • steel – light, simple and inexpensive metal in production, is used mainly in models of budget and medium price segment. A significant drawback of steel is a low resistance to corrosion, therefore, even despite the treatment with various anti-corrosion compounds, the service life of steel heat exchangers is usually 12-14 years old.
  • copper – extremely thermal conductive, all the same light, more resistant to corrosion, but also more expensive metal. It is rarely used in models of the budget price segment, the service life is 13-17 years.
  • cast iron – extremely resistant to corrosion, but expensive, heavy and fragile. Used in models of any price segment, but in view of the large weight – only in floor models. The service life of cast-iron heat exchangers, even in extremely unfavorable operating conditions, is more than 25-30 years.

How to select a room thermostat to reduce monthly heating costs by up to 30%

Combustion chamber device and type of smoke removal

  • open combustion chamber and natural thrust through a standard vertical chimney – an option used in floor models, in which the air for burning fuel is taken from the room in which the boiler is located, and combustion products are diverted into a vertical chimney with a natural thrust. For normal combustion, the premises must be ensured by the proper ventilation.
  • Closed combustion chamber and forced thrust through the coaxial chimney – an option used in wall and some expensive floor models, in which air exchange occurs through a two -pipe chimney. The air from the street flows through the outer pipe, and combustion products are excreted in a forced manner (usually using a turbine) through a longer inner pipe. As a rule, the coaxial chimney is complete with the boiler.

Since an electric boiler does not involve combustion, it does not necessitate the removal of combustion products or the need for a chimney.


In other words, the effectiveness is reflected in the utility coefficient (efficiency), which is the ratio of the boiler’s energy consumption to its secreted volume. Normal values on average:

  • for gas boilers-88-94%;
  • for solid fuel – 8289%;
  • for liquid fuel-86-91%;
  • for electric – 99%.

More thermal energy is accumulated by the coolant with an equivalent volume of fuel burned when the efficiency is higher. Given the low cost of fuel, this is not a significant indicator for liquid fuel and many solid fuel models; however, for gas models, a few percent of efficiency can have a significant impact on gas consumption.

Additional criteria

After determining all the fundamentals, you can compare the phavary models and take note of:

  • Condensation of combustion products – Technology is used in gas and solid fuel boilers (long burning), when an additional heat exchanger accumulates the remaining heat of condensate, one of the combustion products. The technology allows you to accumulate the maximum amount of heat, taking almost completely chilled gases into the atmosphere;
  • Automation functionality and safety – High -tech modern models are equipped with the possibility of programming the operation of the boiler for a week in advance, which allows you to achieve significant fuel saving, for example, by setting a temperature reduction of up to 15 ° C for working hours, when the hosts are missing at home. Significantly increase the safety of protection against overheating and freezing, protection against stopping the circulation pump.
  • the presence of sound and thermal insulation – a sound insulation layer minimizes the noise during the operation of the boiler (for example, cotton with ignition). Thermal insulation from non-combustible materials minimizes heat loss through the boiler housing, which in the standard design can reach 3-5%.

Best famous manufacturers and models: characteristics and prices

Baxi Eco-4s 18f

One of the greatest boilers for heating a 150 m³ private home. An Italian gas wall-mounted double-circuit boiler with an 18 kW capacity is renowned for its high efficiency and dependability, with a maximum gas consumption of 2.11 cubic meters per hour and an efficiency of 92.5%. It also features a nearly silent operation, a primary heat exchanger made of copper (with a secondary heat exchanger made of steel), and functional automation that can be used to link a room thermostat.

Based on the installation process and owner feedback, the model appears to have no significant flaws and has been trouble-free for over five years.

Protherm Wolf 16 KSO

The top model with a 16 kW capacity in terms of value for money. This is one of the best energy-dependent gas boilers for heating a private home, especially considering how inexpensive it is. It has one of the highest efficiency levels of any floor model—92.5%—and the ideal gas flow rate—1.9 cubic meters per hour—for producing 16 kW of heat. The boiler is simple to install and operate (standard mechanical controls); it also has a traction stabilizer.

Nearly all owners report nearly silent operation, and no significant issues with boiler installation were found. On the Russian market, Slovak Protherm is well-known for the dependability of its boiler units. We would like to remind you that a water circuit can only have a maximum pressure of one bar. This indicates that the boiler can only be utilized in heating systems where the coolant circulates naturally.

Buderus Logamax U072-18K

Among the most reasonably priced 18 kW reference German models. Double-circuit, with a 92% efficiency at a maximum consumption of 2.1 m 3 /h, easily controlled with a digital display, aesthetically pleasing design, and small size. However, the primary benefit over other companies’ equivalents is the cost. There are drawbacks as well, such as the well-known issue with the rechargeable plastic tap’s excessive fragility and automation’s susceptibility to frequent voltage drops in homes (it is advised to connect via a stabilizer).

Teplodar Kupper OK 20

Renowned 20 kW solid fuel boiler manufactured at a low cost in Russia. It is different from a straightforward and dependable device that comes preinstalled from the plant with a heating unit (6 kW), allowing you to maintain the coolant’s acceptable temperature for an extended period of time—for instance, after burning firewood late at night. Coal, firewood, and peat briquettes can all be used as fuel. Its drawbacks, which are typical of the low-end market, include a steel heat exchanger, a small furnace chamber, and firewood size restrictions.

Stropuva S20U

Lithuanian long-burning solid fuel boiler with a 20 kW capacity. The mine type model (air supply from above) allows for a maximum combustion duration of seven days when heated using high-quality heat-coal coal. For solid fuel models, the boiler efficiency can reach 85%, which is ideal. After more than six years of practice, there were no significant errors in the work.

There are two major disadvantages to using firewood: the need for dry firewood and the amount of formation that occurs on the tar furnace walls. The fuel supplier suggests utilizing stone coal.

99,000–120,000 rubles is the price.

Boilers that can burn a single fuel for up to seven days

Prices: Final table

The name of the model power, kWt Efficiency, % Gas consumption, m 3 /h Price, rub.
Baxi Eco-4s 18f 18 92.5 2.11 42,000
Protherm Wolf 16 KSO 16 92.5 1.9 21,000
Buderus Logamax U072-18K 18 92 2.1 38 000
Teplodar Kupper OK 20 20 83 34,000
Stropuva S20U 20 85 110 000
Type Gas boiler
Heat Output 25-30 kW
Efficiency 90-95%
Features Condensing, Modulating
Price Range $2000-$5000

For your 150-square-meter home, selecting the ideal boiler is essential to both efficiency and comfort. With so many options, it’s important to take into account things like the kind of fuel, efficiency, and the particular heating requirements of your house.

Choose the fuel type that most closely matches your needs and financial situation first. Boilers powered by gas, oil, electricity, or biomass are typical choices. Oil boilers provide dependability in locations without a gas supply, while gas boilers are more widely used due to their efficiency and comparatively low operating costs. Although they are simpler to install and clean, electric boilers can cost more to operate. Eco-friendly biomass boilers need to have regular maintenance performed on them.

Next, think about the boiler’s efficiency. Over time, models with high Annual Fuel Utilization Efficiency (AFUE) ratings can save a substantial amount of money on energy bills. Although the initial cost of a highly efficient boiler may be higher, over time, utility bills may be reduced.

Additionally, determine your home’s heating needs. The amount of insulation, the number of occupants, and the climate in the area can all have an impact on the boiler’s required size and output. A qualified heating engineer can calculate your home’s heat loss and recommend the right boiler size.

Lastly, don’t undervalue the significance of correct installation and ongoing upkeep. Safe and efficient boiler installation is ensured by hiring a trained technician. Arranging yearly maintenance inspections can also increase the boiler’s lifespan and shield it from future problems.

In conclusion, careful consideration of fuel type, efficiency, heating requirements, installation, and maintenance goes a long way toward choosing the best boiler for heating a 150-square-meter home. Through careful consideration of these variables and expert advice, you can select a boiler that will consistently deliver warmth and effectiveness for many years to come.

Video on the topic

Solid fuel boiler for home 150 square meters.

What type of heating you would like to have in your home?
Share to friends
Anna Vasilieva
Rate author
Add a comment