Power of electric boiler for a house 100m2

Selecting an appropriate heating system for your house is essential for both energy efficiency and comfort. An electric boiler can be a good choice for heating a home that is about 100 square meters. Electric boilers produce heat via the use of electricity, as opposed to conventional boilers that run on gas or oil. To assist you in making an informed choice regarding your heating needs, we will examine the power requirements of electric boilers for a 100m2 home in this article.

Electric boilers have many benefits, particularly for smaller homes. They work well in many environments because they are small, simple to install, and don’t need a chimney or flue. Furthermore, electric boilers are very efficient because they can minimize energy waste by turning practically all of the electricity they use into heat. Long-term cost savings may result from this efficiency, particularly if electricity prices continue to stabilize and the use of renewable energy sources increases.

A number of factors are taken into consideration when estimating the power required for an electric boiler to heat a 100m2 house efficiently. The amount of power needed by the boiler can be affected by the location, number of rooms, ceiling height, and insulation of the building. Proper insulation is especially crucial because it keeps heat in the house, which lessens the boiler’s workload and, in turn, lowers energy costs.

To choose the appropriate size of electric boiler, you must precisely measure the amount of heat that escapes from your house. This entails evaluating the windows’ size and number, the thermal characteristics of the building materials, and any other elements that might lead to heat loss. Understanding the unique heating requirements of your house will help you avoid either oversizing or undersizing the boiler, guaranteeing maximum efficiency and performance.

It is advisable to seek advice from a heating specialist when choosing an electric boiler for your 100m³ home. They are able to calculate heat loss and suggest the best boiler type and size for your house. To guarantee optimal comfort and energy savings, they can also offer advice on other areas of your heating system, like thermostat controls, zoning, and maintenance needs.

House Area Electric Boiler Power
100m² 8-12 kW

Electric boiler for heating the house (100 square meters): characteristics

You can purchase a boiler if you live in a rural or private home where the central heating system is unreliable. To create a comfortable microclimate within the home without going over budget for energy resources and extra power for the device, you must first determine how much power the equipment should have.

Power selection

Experts advise selecting this parameter while keeping in mind that one kilowatt is required for every ten square meters of area. Should the 100 square meter house’s heating system need to be equipped, boiler equipment in the 10 kilowatt range must be purchased. In this situation, it’s critical to consider how well-insulated the house is. You can increase the specified characteristic by 2 kilowatts if this isn’t the case. However, if all walls, ceilings, and floors are insulated, the indicators may be somewhat decreased.

Characteristics of the electric boiler "Evan Expert" 9 or 12

It is not always necessary to choose equipment with a fixed capacity if you need an electric boiler to heat a house (100 square meters). These kinds of models are available for purchase from modern manufacturers; they allow the user to activate the equipment by adjusting the power level. We are discussing a limit of 1 to 12 kilowatts in this instance. These devices are ideal for spaces up to 100 square meters, which is particularly relevant for private home owners who do not rule out the prospect of increasing their living area.

The benefits of an electric boiler for heating a 100-square-meter home are discussed below. The boiler operates by means of rotating stainless-steel heating elements, which extend the elements’ lifespan. Intelligent control systems offer maximum energy efficiency and complete automation of the device operation. Both inside and outside the room, the temperature can be measured by devices. This suggests that the boiler has a special weather-dependent dual heat control algorithm built right in. One of the nine stages can be selected to independently set the output. This parameter is contingent upon the existing degree of heat loss.

Because of its extended boiler room configuration, this type of electric boiler is popular among consumers for heating homes up to 100 square meters. Customers also receive an automatic air vent, an inbuilt circulation pump, and a 12-liter expansion tank with the equipment.

Dimensions and prices

For 45 900 rubles, you can purchase the "Evan Expert" 9 model, whose power can range from 1 to 9 kilowatts. The equipment measures 775 x 420 x 302 millimeters. The device weighs 41 kilograms, which is not very heavy, and you can install it yourself. This apparatus is intended for a 90 square meter heated space.

A 100 square meter house can be heated with an electric boiler; its drawbacks only become apparent when it is not operated properly and is installed in a poorly insulated building. However, it is advised to go with the "Evan Expert" 12, the following model in the line, even though it costs 46,780 rubles more. It has the same dimensions and is intended for 120 square meters. In this instance, you have the option to step-wise adjust the power between 1.3 and 12 kilowatts. The option to change the capacity is frequently pertinent either prior to or following the heating season.

Features of the Bosch Tronic 5000H boiler

When selecting an electric boiler to heat a 100 square meter home, buyers focus on the renowned brand Bosch. The model Tronic 5000H is available for purchase; it will cost you 71,200 rubles. This apparatus has a 10 kW power output, an expansion tank, a pump, and a safety group installed. The apparatus weighs thirty-six kilograms and measures 852 x 615 x 332 millimeters in height, width, and depth.

Because it is made in Germany, the price of this equipment is a little bit more than that of comparable domestically produced items. The apparatus is intended for wall mounting, and during operation, the user will be able to control the unit’s operation through a mechanical system.

Advantages of electric boilers "Protherm Skat"

If you require an electric boiler to heat a house (100 square meters), you can choose the right model from Protherm’s lineup, which offers equipment ranging in capacity from 6 to 28 kilowatts for sale. Devices with a capacity of 9 or 12 kilowatts are appropriate for the aforementioned area. Making this decision will enable you to assess the house’s thermal insulation system’s condition. When you choose "Protherm" units, you get equipment with a contemporary design, step power switching, cascade connection capability, easy maintenance, low noise level, and external power control.

The electric boilers in the aforementioned line are used to heat homes and apartments designed for families. Should you opt for this type of electric boiler to heat your 100 square meter home, you will have an almost maintenance-free appliance with a safety system that incorporates regulatory components.

Positive features of electric boilers "Protherm Skat"

You can use the aforementioned equipment even in protected areas because it is ecologically pure and doesn’t release any harmful substances into the surrounding area. These devices can produce combustion products without the need for a chimney or other equipment. As boilers on other fuel types, it is not necessary to provide air intake for combustion during installation.

Characteristics of the electronic control unit of boilers "Protherm Skat"

When you select the aforementioned electric boiler for a 100 m2 private home, you get an apparatus with an electronic control unit that offers the capability of a gradual shutdown and power on/off. When turning the unit on and off, the device eliminates unwanted impulses at the distribution substation. By only using energy when necessary, the circulation pump lessens mechanical wear and tear on the machinery. It is important to note that the pump has three different operating speeds. It continues to function for two minutes after the boiler is turned off, allowing you to use the warm water that is still in the distribution and body pipelines.

Characteristics of the boiler body "Protherm Skat"

You can select the ideal electric boiler for yourself if the manufacturer "Protherm" piques your interest. With its assistance, a 100 m³ private house can be heated while conserving energy. Experts advise consumers to take into account the features of the body, which houses the cylindrical steel heat exchangers, when they are unsure whether to buy the equipment as described. It has a contemporary component used in gas boilers as well as an integrated hydraulic unit. It offers a safety valve, an automated air exchange system in the valves, and a water pressure sensor.

Characteristics of the boiler brand Vaillant eloBLOCK VE

With a capacity of 9 kilowatts, this electric boiler can heat a 100 square meter home. We will discuss its advantages a little later. Its wall-mounting design means that it will occupy very little space. The dimensions of this object are 740 x 410 x 310 millimeters. This equipment’s primary use is to provide heat for the home; it can also be utilized to build floor heating systems. Strong steel serves as the device’s foundation, and as an added benefit, you can point out that it can be connected to an indirect heating boiler to supply hot water.

A system of protection against freezing of the boiler and its equipment is included in the described 100 square meter electric boiler, the power of which creates a comfortable microclimate in the rooms. A step-down switch will allow the user to control the settings, which will be indicated on the LED display. The device’s interface allows you to adjust the coolant’s temperature. The user enjoys a high degree of comfort because of the straightforward and practical control. 40,200 rubles will be required to pay for the model.

Characteristics of the boiler "RusNIT 209K"

This version is 15,200 rubles in price. It has nine kilowatts of power. Similar to the brand mentioned above, the apparatus is wall-mounted. It is single-circuit, so its only application is in heating system arrangement. The power level varies gradually. As a result, the user will be able to choose the best mode of operation based on the network load.

The unit works due to a stainless steel heat exchanger. If you need an electric boiler for heating a house (100 square meters), types of such devices are recommended to consider in advance. Among them we can distinguish single-circuit and two-circuit, similar models were described in the article. Before choosing, you must decide whether there is a need for a hot water supply. If you buy a boiler "RusNIT", you should familiarize yourself in more detail with its qualitative characteristics. For example, the temperature in the room where the unit is installed should be maintained between 5 and 30 degrees Celsius. When operating you can not be afraid that the device will overheat, as there is a special protection inside that prevents such a phenomenon.

Electric boiler for heating a house with an area of 100 square meters.м.

Electricity is a comfortable, but not inexpensive, way to heat a private home. As a result, it is important to determine in advance how much it will benefit from it and whether it will work.

We will look for the most cost-effective solution and choose an electric boiler to heat a 100 square meter home.

Simple calculation of electric boiler capacity

A straightforward method for choosing the electric boiler’s capacity can be used by anyone who doesn’t want to deal with intricate computations. An average insulated house requires 0.1 kW of heat, according to experimental findings, to heat one square meter. For 100 m², an electric boiler with a 10 kW output is therefore required. Adding or subtracting 10–20% can be done based on how you define "average heating."

This approach is valid, even though it is more akin to a "finger in the sky" because it doesn’t even account for ceiling height. As a result, figuring out the electric boiler’s capacity using the building’s volume is more accurate. We need to multiply the house’s area (100 square meters) by its height (let’s say 2.5 meters) in order to accomplish this. 250 m³ is 100 x 2.5.

Standard operating parameters state that 1 m³ of living space needs 40 W of heat output to be heated. Let us compute: 250 x 40 = 1000 W, which is, amazingly, the same 10 kW as in the approximations. We have, however, opted for a somewhat lower ceiling height. The recommended size for an electric boiler to heat your home should be 12 kW if it is, say, 3 meters long.

Accounting for heat loss of the house: the main thing, without fanaticism

In my opinion, you should stop reading at the previous paragraph because any more numbers could result in complete destruction. After all, heat losses from windows and doors can also be considered. 100 W for each window and 200 W for the door. That means you need to "add" another 1 kW if you have 8 windows and 1 door.

The place of residence has a significant role. A unique "region coefficient" exists; its values vary from 0.7 to 1.9. The power of the electric boiler is multiplied by the degree to which you reside "in the South" or "in the Far North." Russia’s middle zone has a coefficient between 1.2 and 1.4.

That’s not all, though. What happens if there is a brief, unusual frost? You must have a reserve—at least twenty percent. Additionally, add another 10% to 15% if you intend to use the same boiler to heat water. Therefore, our electric boiler is already nearly as powerful as a 20 kW boiler when it comes to heating a 100 square meter home. Keep in mind that we skipped over discussing the size and quality of windows as well as the walls, floors, and ceilings’ thermal conductivity. What can be said about the room’s intended temperature and ventilation losses?

No, any small-to-many serious profile office will calculate your project based on all the indicators if that’s what you want. However, most of the time the money is wasted. First, on the project itself; and second, on a boiler that ends up costing more than you anticipated. Ultimately, it is highly recommended that you take a good reserve, which usually ends up being unnecessary.

Electric boiler for heating: the most economical option

Undoubtedly, some power reserve is required. It shouldn’t, however, get ridiculous when some "experts" genuinely (and based on calculations) propose to build a 100 square meter house. 35 kW electric boiler in м.

People with long histories of using electricity for heating have experience that suggests "taking with reserve" is not always necessary. This is due to at least three factors.

Restrictions on power. The current single-phase network can accommodate electric boilers up to 6-7 kW without requiring significant modernization. It is necessary to lay a cable with a cross-section of up to 16 mm.sq. for boilers ranging from 7 to 12 kW. Additionally, only a three-phase network (380 V) can be used to connect electric heating boilers larger than 12 kW, with all the associated ramifications. It should be remembered that not all electrical networks are in a condition that permits a household to receive more than 10 kW.

It matters how big something is. Selecting a cost-effective electric boiler to heat the house is not enough; you also need to consider where in the 100 square meters you will hide it. While a smaller, low-power model may fit in the hallway or beneath the stairs, larger models will need their own boiler room.

Plan B: Heating the house exclusively with electric boilers is highly undesirable. When it is -20°C outside the window, it is usually the most inconvenient time for electricity to go out. A solid fuel boiler, as opposed to a fireplace or traditional stove, will come in very handy during these times. They can be lit during chilly weather in addition to situations involving force majeure, so there’s no need to purchase a double-power electric boiler "just in case."

Thus, an electric boiler with a capacity of 7 to 12 kW combined with a stove or solid fuel boiler will be the most cost-effective option for heating a 100 square meter home.

Regarding particular models, it’s hard to offer advice here. as the heater article revealed to us. Heat energy is produced with an efficiency of almost 100% from electric energy. Consequently, the heat output of a tricked-out Bosch and a domestic Rusnit will be almost equal. The condition of the wallet, ease of use, and common sense should all be considered when making a decision.

How to calculate the capacity of an economical electric boiler

The first step in accurately calculating the electric heating boiler’s thermal capacity is figuring out the house’s heat losses, which happen on the coldest winter days. This method will ensure that the house’s rooms are warm throughout the entire year.

Methods of determining the capacity

There are several ways to compute the value of these losses. Some of them require the application of extremely intricate formulas, which naturally annoys a lot of customers. After all, calculating the desired figure takes a lot of time. As a result, the following will be divided into two easy categories:

  1. Allows To determine the heat loss of a house, knowing only the floor area .
  2. Allows to set the heat output of an economical electric boiler with high efficiency, using the volume of the .

Prior to going over each technique, it’s important to remember that all electric boilers have the ability to convert 100% of electrical energy into nearly 100% of thermal energy. Whether he uses inductive coils, electrodes, or heating elements to heat the water is irrelevant. Because of this feature, the efficiency of the heating boiler can be taken into account without having to adjust the figure after calculating the house’s heat losses.

Consider a solid fuel boiler, which has an efficiency of 90%, as a point of comparison. Only 3×0.9 = 2.7 kWh of the 3 kWh that 1 kg of firewood emits will enter the heating network. Three kWh of electricity will be transformed into three kWh of heat energy in the case of electric devices. As you can see, the calculation is made somewhat simpler by this feature.

In this piece, we examine the ideal power needs for an electric boiler in order to effectively heat a 100 square meter home. Selecting the appropriate size for an electric boiler is essential to guaranteeing cozy interior temperatures while preserving energy effectiveness. The right power output depends on a number of factors, including the number of occupants, the quality of the insulation, and the local climate. Through comprehension of these variables and expert advice, homeowners can choose the best electric boiler for their 100-square-meter home—one that balances affordability, environmental sustainability, and warmth.

Calculation of boiler output by area

It is very straightforward because it states that 100 W of heat must be produced in order to heat one square meter. True, there is a more intricate version of the formula:

Where S denotes the house’s area.

The coefficient k is used to calculate the amount of heat lost through windows based on the outside air temperature. It is 0.7 for areas where the wintertime low is not lower than -10 °C. It is evident that it rises as the outside temperature drops. It gets 0.2 bigger for every 5 °C. K is 1.2 for areas where winter thermometer readings indicate -35 °C.

If a 115 square meter house needs to be heated and is situated in an area where the minimum winter temperature is -20 degrees Celsius, an affordable electric boiler with a capacity of 115 * 1.1 * 100 = 12 650 W = 12.65 kW should be installed.

Although very straightforward, this calculation is not always accurate. This is due to the fact that numerous factors affect heat losses. It is applicable in this instance to a home that has:

  • double-glazed windows with an area of no more than 30% of the area of all rooms;
  • Average thermal insulation (wall thickness is equal to the length of 2 bricks, insulation is 15 cm thick);
  • cold attic;
  • Rooms with a height of 2.5 meters.

External walls are not considered in this. This is because the correction factor ought to be 1.1 even with just one wall of this type. It is equivalent to 1.2 for two walls, 3 – 1.3, etc. д.

That is to say, a cost-effective heating boiler with a capacity of 12,65*1,4 = 17,71 kWh is required to heat the aforementioned house. It is obvious that using a device with a 20 kWh capacity is preferable.

Factors affecting the thermal capacity

  1. Number of external walls.
  2. Type of windows.
  3. The level of thermal insulation of the walls.
  4. Window area.
  5. height of premises.
  6. Presence of an insulated attic.

Standard windows with standard glazing let 27 percent of heat escape. In other words, the result of the aforementioned formula should be multiplied by 1.27 when dealing with such windows. The correction factor for windows with three panes is 0.85.

For walls that are very well and poorly insulated, respectively, the same coefficients apply. Ten percent more heat can be lost through windows if they make up forty percent of the space in the room. That is, 1.1 is the coefficient. It increases by 0.1 with an additional 10% increase in the window area to floor area ratio.

When a room’s height is more than 2.5 meters, it should be considered. The correction factor for this figure is 1. It grows by 0.5 with each additional 0.5 m increase in height. That is, 1.15 for walls that are 4 meters in height. The resultant figure does not need to be adjusted if there is a cold attic. The result is increased by 0.9 or 0.8 if it is insulated or if there is a heated room above.

Calculation of the boiler volume

The capacity is determined using the formula below:

Where V represents the house’s volume.

The heat loss coefficient, or K, varies with thermal insulation. possesses the subsequent values:

  • 0.6-0.9 – for houses in which the structure is an improved one. walls – brick and covered with double insulation, windows are double-glazed and relatively small, the roof is made of insulating material;
  • 1-1.9 – for houses characterized by double brickwork. A house with a small number of windows and a roof with a normal roof;
  • 2-2.9 – for buildings with little thermal insulation. i.e. heat is retained by windows and roof with simplified construction, walls with thickness equal to the length of 1 brick;
  • 3-4 – for wooden constructions or buildings whose walls are corrugated metal sheeting.

The difference between the desired temperature inside the room and the outside temperature through the window is known as ΔT.

We’ll use the aforementioned house as an illustration. It has a volume of 287,5 cubic meters (V = 115*2,5). м. ΔT equals 40 °C (+20 – (-20)). Next, P equals 287,5 * 1,9 * 40/860, or 25,4 kW/h.

The existence of an indirect boiler with good efficiency within the home is not taken into consideration by either method. If so, there should be a certain amount of increase in the final result. Numerous professionals advise multiplying it by 1,2-1,3. However, another straightforward formula can be applied.

A 100 m2 house must be properly heated, and this requires selecting the appropriate power for an electric boiler. It’s important to strike a balance between effectiveness and efficiency rather than merely obtaining the largest or smallest one that is offered.

The right boiler power is determined in part by factors including number of occupants, climate, and quality of insulation. By keeping your home well-insulated, you may be able to choose a lower power boiler and lessen the strain on the boiler by retaining heat.

It’s crucial to avoid undersizing your boiler, though, as this can result in uncomfortable temperatures, inadequate heating, and higher energy usage as the unit tries to meet demand. Without wasting energy, a correctly sized electric boiler will deliver constant warmth.

Finding the right power for your needs can be aided by speaking with experts or using online calculators. Making an educated choice can also be aided by taking into account elements like the boiler’s energy efficiency rating and room for future growth.

Finding the ideal power for your electric boiler ultimately comes down to balancing affordability, comfort, and efficiency. It is possible to guarantee long-term satisfaction and the best heating performance by considering the particular features of your house and consulting an expert when necessary.

What type of heating you would like to have in your home?
Share to friends
Sergey Ivanov

I like to help people create comfort and comfort in their homes. I share my experience and knowledge in articles so that you can make the right choice of a heating and insulation system for your home.

Rate author
Add a comment