Which boiler is better for a private house of 100 sq.m: tips for choosing, examples of models, prices

First of all, when organizing heating for a private home, you need to decide on the type of fuel used. This is the main criterion for choosing a boiler, on which further operating costs, autonomy and stability of the heating system depend.

Having decided on the type of fuel, you need to select the minimum required power, pay attention to the number of circuits, installation method, heat exchanger materials, method of air intake and exhaust of combustion products. Let's consider the entire process of choosing a boiler for a house with an area of 100 m2 one by one.

Fuel type: electric, gas, solid fuel or liquid fuel

For a home of about 100 square meters, any of the fuel types described below may be suitable. The choice should be made based on whether gasification was carried out in your area of residence, how accessible this or that type of fuel will be, whether there is enough space in the house for a large boiler or whether a compact one is required.

Gas.

The most affordable and popular type of fuel. It can be mainline or liquefied. Gas fuel is inexpensive, produces high heat transfer during combustion, and produces a relatively small amount of combustion products. Gas boilers are widespread. Many manufacturers have several series of such heating equipment (for example, Protherm Bear or Jaguar, Vaillant turboTEC or ecoTEC). There are floor and wall variations. Gas heating boilers for a house of 100 sq.m. have different prices (from 30,000 rubles and above), economy class, middle class and premium boilers that have additional functions and an increased service life are available for purchase. The efficiency of such boilers is on average 88-93%. Many service organizations and craftsmen service gas boilers, which simplifies repairs and finding spare parts.

Electricity.

Electric boilers are often used as a boiler for heating a house of 100 m2. Electricity is more expensive than gas, but it is an excellent option in areas where there is no gas supply. Modern electric boilers are affordable, but fuel costs can reach 5-10 thousand per month. Also, electric boilers for a 100 m2 house are very compact and low noise. As a rule, electric heating boilers are used for temporary residence in a country house.

Solid fuel.

These are coal, fuel pellets, firewood. Today, the share of houses heated with solid fuel is only 5-15% (in different regions). This heating equipment has a number of disadvantages: the need to prepare and store fuel, unstable heat transfer, the inability to work without the constant presence of a person, rapid contamination of the boiler, etc. In remote areas, solid fuel boilers for heating 100 m2 houses are still successfully used, since there is no gasification and stable electricity. To operate a solid fuel boiler, you need to systematically add fuel, but many modern models have an automated supply.

Liquid fuel (diesel, kerosene, fuel oil, etc.).

Quite efficient floor-standing boilers with good efficiency, which are not very common (about 10% of all boiler units) due to the need to install a separate boiler room. Also, liquid fuel heating boilers require a supply of fuel, which must be stored in a special tank.

The best solid fuel boilers 2022 - 2019

The heating system is one of the integral communications of the building. And here progress also does not stand still: every year manufacturers delight with new units.

To make a good choice, it is necessary to take into account that each solid fuel boiler is designed for a certain power and, accordingly, may have a limitation on the size of the heating area.

The efficiency of the device and the type of control also matter; for example, the presence of an automatic ignition function will significantly simplify operation.

We have compiled a rating of the best new products for 2022 - 2022. According to buyers, these particular solid fuel boilers have the best price-quality ratio, ease of operation and attractive appearance. They are the most in demand and have already proven themselves worthy. So, let's look at our top 10.

Combination boiler for medium-sized areas - up to 200 sq.m. This model from a domestic manufacturer opens our rating of the best boilers of 2022 - 2022. It is possible to install a burner (also not included in the package). Has high heat transfer. The coolant temperature is from 50 to 90 degrees. The product lights up quickly and maintains a good temperature for a long time.

Minuses:

You must purchase a pellet or gas burner yourself.
A small hole for storing firewood.

A budget option with good power is an excellent choice for a small private house or cottage. The manufacturer recommends using wood and charcoal to operate this boiler. The removable damper ensures easy cleaning of the coolant.

Heating boiler power for a house of 100 square meters

For a house or cottage located in central Russia in a temperate climate zone, the heating output of the boiler is 1 kW per 10 m2 of area. Therefore, for a house of 100 m2 a 10 kW boiler should be suitable. However, it is also necessary to take into account heat loss, efficiency of the heating unit and other factors. Typically, a boiler is purchased with a power reserve of 10-30% (depending on the type of fuel and other characteristics of the boiler and the heated building).

Therefore, for a house of 100 m2 you need to choose a boiler with a capacity of 12-14 kW.

You should not take a model that is too powerful (18 kW or more), as it will cycle frequently (turn on and off). In this case, there will be fuel losses, and the boiler unit itself will be subject to accelerated wear.

How to choose?

When choosing a unit, you should consider the following parameters:

Power . The main parameter on which the heating area depends. You need to decide for what purpose the boiler is needed. If for heating, then a power of 10 kW is sufficient. If for water supply, then the value should be increased by 20%. If you need to organize a heated floor, you can choose a boiler with a capacity of up to 15 kW.
Varieties . The devices are single-circuit and double-circuit. The former allow heating the premises, but can also provide heating of water. However, the options cannot be executed simultaneously. You can add a boiler to the unit to increase its performance. Dual-circuit models are equipped with a built-in tank and simultaneously perform 2 functions.
Installation method . Floor-standing units are usually quite massive, so they require a separate room. They quickly heat water and heat a private home, but consume a large amount of electricity. Wall-mounted units cope with heating small houses, while consuming less fuel.
Type of food . Heating occurs due to several heating elements. The power of the device depends on their number.
Control type . The control panel can be located on the boiler itself (buttons or sensor). The unit can also be controlled by remote control, through a program on the phone and through the Smart Home system. Models with an intelligent control system are more expensive, but their use is easier. They are automated: a special sensor itself selects the desired temperature, and the user can only control the process.
Additional functions . The more additional options, the higher the cost of the product. These include power adjustment: you can set different parameters depending on the season to maintain a comfortable temperature. If the unit is equipped with an electronic thermostat, you do not need to do anything, since it itself sets the optimal parameters. In addition, the devices can be equipped with frost protection and protective shutdown: the sensor turns off the device in the event of an emergency.

Is a floor-standing or wall-mounted boiler better for a 100 m2 house?

There are models of heating units for installation on the floor and on the wall.

Wall-mounted boilers for a house of 100 m2. Compact and lightweight so as not to load the wall. More often they are equipped with copper, aluminum or steel heat exchangers. Wall-mounted models have a number of limitations. For example, their capacity is limited, but for a house of 100 sq.m. You can choose many models. There are also restrictions on working with antifreeze and on the quality of the coolant.
Floor-standing boilers. They often have a cast iron heat exchanger, which has an increased service life and is less susceptible to corrosion. They are distinguished by their rather large size and significant weight. Many models are non-volatile. Liquid fuel and solid fuel boilers can only be of the floor type. As a rule, such models have high power, which is not suitable for a small house of about 100 m2.

Useful tips

The smaller the volume of coolant in the heating system of a private house, the more efficiently the electrode-type boiler operates. Therefore, it is recommended to use bimetallic or aluminum radiators and contour wiring made of polyethylene pipes to construct the heating system.

Please note that it is best to create your own new heating for an electrode heating unit. It is not worth embedding it into an old one, where another type of heating device was used.

Thermal insulation and connection

Experts recommend thermal insulation of all circuits. The connection is best done with a separate cable from the distribution panel with the installation of a separate machine. An RCD (residual current device) cannot be installed in the electrical connection circuit.

The installation must be grounded, as is the case with other models of electric heating units.

Increasing heating efficiency

If the power of one boiler is not enough to heat a large house, then several devices can be installed in a single system. They can be connected to each other in parallel or in series.

And one last thing. Heating boilers of this type are installed only in a closed system where a circulation pump is installed. The latter provides additional coolant resistance, which affects the quality of heat generation.

Efficiency - efficiency factor

Efficiency directly depends on the type of boiler and the fuel it consumes. The higher this indicator, the better.

Electric boilers have the highest efficiency - up to 99.5%. Gas models on average produce 88-95%, liquid fuel 85-90%, and solid fuel ones take last place - their average efficiency is 81-88%.

You might have seen on sale with efficiency above 100%. They do exist, but in this case the efficiency is shown relative to standard models of similar power. Condensation models, which also receive thermal energy from condensate, have an efficiency above 100%. Such boilers are expensive, but they are economical in terms of fuel consumption.

Basic requirements applicable to such boilers

Gas equipment installed in a house under construction or an existing one must meet certain criteria. Firstly, this is performance: with low efficiency, the unit will not fully supply heat to the premises of a house or mansion. This figure for a good 100 kW gas boiler should be at least 90%. Secondly, it is reliability. In any emergency situation (for example, interruptions in water or gas pressure, interruption of their supply, a clogged chimney), the automation must work accurately and stop working. And, of course, not every equipment can withstand domestic networks with their floating pressure - well-designed boilers from well-known manufacturers cope with this without any problems.

You might be interested >> Autonomous heating and gas boilers

Thirdly, the economic component. A unit that is too voracious will consume more fuel than it provides benefits. This also applies to the electricity consumed to operate the boiler systems (pumps, ignition, automation).

Economical gas boiler for 100 sq. meters consumes about 10 W - this is less than a laptop power supply. Fourthly, this is the ability of the unit to “fit” into the environment. Wall-mounted models, approaching gas water heaters in compactness, are unpretentious in this regard. The only requirement is sufficient load-bearing capacity of the wall on which the boiler will be mounted. Floor solutions will require a special space, and there must be a ventilation duct or chimney nearby.

Important. Gas equipment is not an iron or a hair dryer. Of course, it is subject to the general rules of treatment between sellers and buyers, enshrined in the Law “On the Protection of Consumer Rights”.

But it is better to approach the purchase carefully: consult with specialists so that you do not have to return an unsuitable product to the store, resolve issues with exchange, and so on.

Is the combustion chamber open or closed?

An open combustion chamber in a boiler for a 100 m2 cottage involves the removal of combustion products using natural draft through a vertical chimney. In this case, the boiler takes air from the room. This option requires good ventilation. An open combustion chamber is found mainly in floor-standing models.

The closed combustion chamber operates thanks to forced draft and a coaxial chimney, which is purchased separately. This type of camera is more common in wall-mounted models, but can also be found in floor-mounted ones.

conclusions

In conclusion, here are some more general tips:

Funds invested in a boiler of a more reliable design (of a well-known brand), with a manufacturer’s guarantee, will pay for itself in the future.
The efficient operation of the heating system, and therefore the comfort in the house, depends not only on the gas unit. It is influenced by the level of heat loss, the material of the radiators, the length and type of pipes from which the main line is installed, and other factors.
When choosing a heating boiler, you will definitely need to consult with specialized specialists. There is no point in saving money on this.

Power control function and burner type for a boiler for a house 100 m2

This opportunity is relevant for gas boilers.

Single-stage
is the simplest option, allowing the heating unit to operate only at 100% power.
Two-stage
- provides two modes: 100% and 50% power.
Modulating
is the most modern and economical type of burner. Makes it possible to regulate power in steps of several kW (for example, switching occurs at 20%, 40%, 60%, 80% and 100% of power). In this case, the boiler operates constantly, no clocking occurs. Optimal gas consumption is achieved.

EVAN electric boilers for 100 sq.m.

EVAN EXPERT 9

Power, kWt:
9
Number of circuits:
1
Type:
wall
Network phasing:
1.3
Circulation pump:
yes
Expansion tank:
no
Rating:
5.0

Advantages:

everything in one device
easy setup
affordable price
compactness
reliability

Flaws:

noise
expansion tank is small

The best boiler models for a house with an area of 90-100 square meters

In our online store “Teplo-Comfort” you can purchase several boilers with suitable parameters. Below we will talk about the most popular models. This is a wall-mounted equipment with a power of 11-14 kW, running on both gas and electricity.

Gas wall-mounted boiler Protherm Cheetah 12 MTV

Power: 11 kW.

The boiler uses main gas as fuel and is designed to be placed on the wall. Double-circuit, suitable for heating and hot water supply. It has a closed combustion chamber and is compatible with a 60/100 mm chimney. Efficiency 93.2%. Built-in 5 liter expansion tank. The Gepard boiler has many modern functions (LCD display, frost protection, the ability to work in a “warm floor” system, etc.).

This boiler is suitable for a house of 90-100 m2 with good insulation.

Price: 61,640 rub.