An electric furnace is one of several available solutions when it comes to efficient heating of living spaces. We should not be surprised by the growing popularity of this type of devices. Their work does not involve burning gas or fuel oil, so we can count on clean and safe air. However, which electric furnace should you choose if you have a house with an area of 100 m2? What power of an electric furnace will be appropriate? What additional factors are worth paying attention to? You will find the answer to these and other questions by reading this article!
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How much electricity does an electric furnace use?
Before you even start choosing a furnace 
electric, check how much electricity a given model from the series you are interested in consumes on average. You can calculate this if you know parameters such as the furnace power and supply voltage. Typically, the furnace power is presented in kilowatts (kW), while the supply voltage is given in volts (V).
The general formula for calculating the amount of electricity consumed is as follows:
Current (A) = Power (kW) / Voltage (V)
For example, if you have a furnace with a power of 10 kW that requires a 230 V power supply, the calculations should look like this:
Current = 10 kW / 230 V = 43.48 A
Of course, it should be borne in mind that the calculations presented above are simplified. In reality, the level of energy consumption will vary depending on factors such as the efficiency of the furnace, the degree of its consumption (depreciation), tightness of the room, etc.
What power electric furnace should I choose for a 100 m2 house?
It is difficult to answer this question unequivocally because, as we have already mentioned, a lot in this matter depends on individual circumstances. The appropriate furnace power is influenced by, for example, the insulation of the house, the location of the property and the area of the living rooms, and finally: the preferred temperature inside the building.
However, it is generally assumed that for a house with an area of 100 m2, a furnace with a power of approximately 10 to 15 kW should be sufficient.
Of course, if you want a more in-depth answer on this topic, consult a professional who will perform thorough calculations and analyses, taking into account the individual conditions of the building.
Which electric furnace for photovoltaics?
If you are the proud owner of a photovoltaic installation, it is worth considering purchasing an electric furnace that is compatible with FV. This solution will bring you two benefits, i.e. heating efficiency (a modern furnace will take care of this) and financial savings (you will use the energy produced by photovoltaic panels for heating).
Which stove should I choose?
If you are wondering which electric furnace to choose, you have come to the right place because we have several suggestions for you.
Electric combi boiler Kospel EKD.M3-04/06/08
Electric combi boiler Kospel EKD.M3-04/06/08 
is a device with a maximum temperature setting of 85 degrees Celsius. As for the water capacity, it is 12 liters in the case of the expansion vessel and 130 liters in the thermal water circuit.
The running water connection is 3/4 inch, which is a standard solution in this category. Thanks to this, there should be no major problem with connecting the device to the running water system. The EKD.M3-04/06/08 electric boiler also offers functionalities such as automatic venting.
Elterm Major 9 kW electric boiler - basic LED series
This boiler will work as a primary or backup heat source. The Elterm Major 9 kW electric boiler is equipped with functions such as an electronic pump or a transparent LED panel. In terms of power, this equipment is available in the following variants: 4, 6, 9, 12, 15, 18 and 24 kW.
In each of these cases, it is possible to limit the power operating range to 33% or 67%. Noteworthy here is the PV ready functionality, thanks to which you can use the energy generated by the operation of the photovoltaic installation.
Electric central heating boiler EKCO.M3-12/16/20/24 kW / 400V 3N~
It is worth paying attention to this model due to its high power level (24 kW) and the possibility of remote regulation of the boiler. The sound generated by this device is in the range of 41 decibels, which is the optimal level.
The EKCO.M3-12/16/20/24 kW / 400V 3N~ electric central heating boiler is a device that can be described in one word: solid. It will work successfully in standard conditions as well as in medium-sized rooms.