Categories: Home automation, Energy saving
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The most economical electric home heating

 

The most economical electric home heatingIt is better to prepare a sled in the summer, as well as a heating system at home or in a summer house. It is not worth putting off “for later” the solution to this vitally important issue. After all, autumn cold can come suddenly, and it is important that the weather does not take you by surprise.

Homeowners who have gas connected to the house but who have no problems with heating and hot water can close this article and go about their business. This article is for people who want to do in the house. the most economical electric heating, but the power allocated to their house (the limit of allowed power) is not enough to connect several heating appliances and other household appliances. And the purchase of additional electric power from power engineers is not possible due to the unjustifiably high cost or physical absence of excess power due to old transformer substations.


What is the most economical and inexpensive heating system for electricity?

According to many years of experience, we can say that the simplest and cheapest way to implement a method of electric heating of a country house or cottage is use of electric convectors. These electrical appliances have positively proven themselves for heating, both residential and administrative or retail space. This type of electric heating has several important advantages over other electric heating systems and appliances. Consider just a few of the benefits.



1. The best indicators of efficiency and profitability

The principle of operation of an electric convector is the natural circulation of air, when warm air, as less dense, rises above the cold. Indoor air mixes spontaneously. This ensures good uniformity and speed of heating, as well as the absence of drafts.

The heating elements of electric convectors have a low mass and thermal inertia, so they heat up quickly. Unlike, say, oil filled radiators. Therefore, the efficiency of such a heating device is very high, and the power consumption is an order of magnitude less than that consumed by an electric boiler.

Almost all the electricity consumed by the convector is converted to heat. A thermostat allows you to achieve significant energy savings, because TEN does not work constantly, but only with a decrease in air temperature. Those. cyclically.

electric convector

2. Best performance safety

Modern convectors contain TENYthat do not heat above 100 ° C. At the same time, the temperature of the convector body remains below 60 ° C. The convector does not burn oxygen. And most devices of this type have increased protection against moisture (IP24), so they can be safely installed in bathrooms, bathrooms, dressing rooms, next to the pool, etc. Although, of course, this does not mean that the convector can be sprayed with water from a hose!

Convectors from leading manufacturers are equipped with a security system that will turn off heating if the air inlet or outlet is closed. Therefore, convectors can be used in kindergartens, nurseries, hospitals, etc.


3. Easy to install and operate

The electric heating convector is ready for use immediately after purchase. All that is necessary for its operation is installation on a wall or on special legs, as well as inclusion in the power grid.

To select the temperature, it is enough to set the thermostat to the appropriate temperature value, and then, just wipe the dust from the case. Unlike the installation of a water system, convectors save considerable money because they do not require laying pipes around the house.


4. Low price

The cost of high-quality electric convectors can not be compared with the cost of an electric water heating system.


5. The possibility of a gradual increase in the system

Convectors can be purchased and put into operation gradually, as necessary or as funds are available. While water heating requires the purchase of all components at once, which is not cheap.


6. The possibility of using energy-saving automation

Very often, the power allocated to a house or cottage is not enough to connect several energy-intensive heating devices. Electric convectors allow the use of additional external automation, for example, the OEL-820 Clusterwin network load optimizer, which reduces the total power consumption and allows you to operate them even with an insufficient limit of allowed power.

This is very important for a country house. In addition, the load optimizer does not require installation, but simply plugs into the outlet, like an adapter - adapter. Electric boiler It requires a large supplied power, which cannot be reduced.


7. Insensitivity to voltage deviations

Heating elements of convectors are not sensitive to the deviation of the network voltage, which is often found outside the city. Therefore, they do not need an additional voltage regulator.

Electric convector

8. Great design and compact

Heating with convectors does not require room under the boiler room. Convectors are small and fit into any interior.

See more about here arrangement of electric convectors.


Clause 6 is illustrated by an example

Under an agreement with a power sales company, the electric power allocated to the house is 5 kW. At the same time, it is necessary to operate four convectors of 1 kW each, a water heater of 1 kW, and a kettle of 1 kW. In total, our electrical appliances consume 6 kW, which exceeds the allocated limit. Therefore, when they are turned on simultaneously, the network will overload and knock out the machine (circuit breaker) ...

However, it is not necessary that all appliances are turned on for heating at the same time. If powerful electrical appliances are conventionally divided into pairs and made so that in each pair one and only one electrical appliance can be turned on, then it is possible to significantly reduce the total power consumption and bypass the allowed power limit. For these purposes, they use the latest automation - power load optimizers. For instance, OEL-820 CLUSTERWIN.

You can read more about this device and its operation. in previous articles.

To connect energy-consuming electrical appliances, we will use three optimizers for the load on the electric network OEL-820 CLUSTERWIN.

house three floors

Third floor. One large room is a studio.

When the priority convector A is turned on in heating mode, the non-priority convector B is turned off. As soon as the temperature in the left zone of the room reaches the set value, convector A will turn off the heating. The duty cycle of non-priority appliance B.

When the temperature in the right zone of the room reaches the set value, convector B will turn off. For some time, depending on the quality of the thermal insulation of the room, both convectors can be turned off. At this time, the temperature in the left area of ​​the room slowly decreases.

When the temperature drops below the set value, priority convector A will turn on and begin its new duty cycle.

Since in this pair of convectors only one convector can turn on at any moment of time, the total power consumed by the two convectors will never exceed 1 kW.

The total consumption and load on the power grid is reduced by 2 times.

Second floor. Two separate rooms.

Convectors of the second floor, connected to the network through optimizers of the load on the mains, work in exactly the same way as convectors on the third floor. Only each of them heats his room. At the same time, the total power consumed by two convectors will never exceed 1 kW.

Ground floor.

The kettle and water heater are connected to the network through the OEL-820 optimizer. While the kettle is not in use, the water heater operates in accordance with the temperature set on the thermostat. When you turn on the kettle, the water heater automatically turns off for the duration of the kettle.

As soon as the water boils, and the kettle turns off, the water heater will be connected to the network and continue to work. It is preferable if the thermostat is electromechanical. Such a water heater is cheaper.

Since one and only one electric device can be switched on from two electrical appliances, the total power consumption of the kettle and water heater will never exceed 1 kW. Therefore, their consumption and load on the power grid reduced by 2 times!


Conclusion: when operating six electrical appliances with a total capacity of 6 kW connected through three optimizers of the load on the power grid, the total power consumed from the power grid will never exceed 3 kW!

Which of the points of advantages of convectors listed by us should be put in the first place, and which in the last? There is no definite answer to this question. But, the ability to choose what is more important in your specific situation is already wonderful!


Which electric convectors to choose?

This is a matter of taste and purse. It is clear that you should only buy devices from well-known manufacturers, such as NOBO or the like. This is your safety. Pay attention to a function such as self-healing (restart) after a power outage.

Normal convectors are not sensitive to power outages. And those that require a restart by a person are not convenient in operation and can cause great damage by freezing a house.

Yuri Shurchkov

See also at bgv.electricianexp.com:

  • How to increase stress in the country
  • The device and principle of operation of the electric convector
  • New appliance and new principle of energy saving
  • How to provide comfort with insufficient power supply
  • Modern household electric heaters

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    Comments:

    # 1 wrote: | [quote]

     
     

    Very interesting article. I heard about convectors before, but did not think that they have so many advantages. I read about the load optimizer for the first time. To be honest, I would like to try.

     
    Comments:

    # 2 wrote: | [quote]

     
     

    The most economical heating using electricity is geothermal. All the others are several times less economical and close to each other in terms of efficiency. This article, as I understand it, is an advertisement for load optimizers (oh, these marketers will call it that).

     
    Comments:

    # 3 wrote: | [quote]

     
     

    Convenience and ease of installation of convectors - I agree with this. Profitability - here the author is a little disingenuous. If only electric heating is required, then it is necessary to lay electric heat-insulated floors to the convectors installed under the windows (there is no way without them).

     
    Comments:

    # 4 wrote: | [quote]

     
     

    I also don’t see much efficiency in electric heating. Galiev is right that you can’t quickly warm up the floor with a convention ... I’ll add that you still need to heat the supply air ...

     
    Comments:

    # 5 wrote: MaksimovM | [quote]

     
     

    The article notes that for some time both convectors in two rooms can be in the off state if the temperature in both rooms does not have time to drop to a threshold value. This is true except for the autumn-spring period, when the ambient temperature has not fallen yet and there is no need for continuous operation of each of the convectors.

    When winter comes and severe frosts begin, in order to maintain the optimum temperature in the rooms, it is necessary that the convectors work at full capacity. What happens if a similar optimizer is used to turn on convectors? One of the convectors will turn on, the second will be turned off and will not turn on, since the priority load, that is, the first convector will be constantly on.You can set the thermostat for convectors in both rooms to lower power, then they will turn on alternately, but will not provide the optimum temperature in the rooms.

    That is, we can conclude that it is impossible to ensure sufficient heating of the house with electric heating with an insufficient power limit. Therefore, before choosing electric heating for heating a house, you need to make sure that the set load limit for an apartment or house will allow you to include in the network at the same time the number of convectors that will need to be included in the coldest time of the year. Do not forget about other household electrical appliances that will also be operated.

    If the power limit allows you to use the required number of convectors to heat the room, then the power optimizer can be used to ensure the operation of household appliances. But if the power limit does not allow the full use of heating, not to mention other electrical appliances, then the power optimizer will not solve the problem. The only solution is to increase the load limit defined for the house.

     
    Comments:

    # 6 wrote: | [quote]

     
     

    Very similar to convector advertising. I will disappoint you, not everything is so tempting, I have now built a house the same as in the picture 3 floors, 9 * 9 sq.m. 3 kW wind turbine works on one floor. + 2 kW convector and no use, it is barely barely warm and they work without turning off, but you can buy more, but it makes sense, the wiring will not stand in the end.

     
    Comments:

    # 7 wrote: | [quote]

     
     

    Convectors justify themselves by the simplicity of heating, I use 5 years in an old house of 3 kW. convector. Now I bought 5 pieces with ionizers in a new house, because of this I spent 3 phases and so far these 5 pieces are only on the first floor. The main thing is that there should be no drafts in the house and calculate the power of 1 kW per 10 sq.m. with ceilings up to 3 meters. Of course, now their price has jumped due to the course.

     
    Comments:

    # 8 wrote: | [quote]

     
     

    My cottage is heated by a convector, it is really very convenient.

     
    Comments:

    # 9 wrote: Bolshakov Arthur | [quote]

     
     

    And how's the money?

     
    Comments:

    # 10 wrote: | [quote]

     
     

    Considering that my electricity is supplied at a low tariff, then the money is normal.

     
    Comments:

    # 11 wrote: | [quote]

     
     

    Dmitriy,
    Air converters are not the best option.

     
    Comments:

    # 12 wrote: | [quote]

     
     

    I do not agree with the author. Consumed 1kW-received a calculated 0.85 Mcal minus the efficiency of any electric heating. appliance - this applies to the boiler and to the air heater and any other device, and since the efficiency varies by several percent, I see the difference only in the inertia of the equipment, but I do not see the advantages of the air heater in terms of saving. And any optimizer will provide savings in any case only due to underheating, since you can’t squeeze out the consumed gigacalor from a kilowatt, but the right selection for certain individual goals is needed anyway and the heater will not always be a priority, and the optimizer, my opinion, is a little self-deception and reassurance.

     
    Comments:

    # 13 wrote: | [quote]

     
     

    Alternative Economical, safe Electric heating COMFORT - completely Russian production.

     
    Comments:

    # 14 wrote: | [quote]

     
     

    If we already consider electric heating, then only electric radiators for water heating with electronic triac control modules. Everything else is money down the drain. Cost effective and energy efficient. With underfloor heating everyone was crazy. Yes comfortable, but not economical! You will pay big money for electricity. By the way, if there is a triac electronic control in every room, an optimizer is not needed at all!

     
    Comments:

    # 15 wrote: Igor | [quote]

     
     

    Why "If we already consider electric heating, then only electric radiators water heating "?
    What else is an “adapter” in the form of water? Moreover, with such an implementation, it is necessary to fill in antifreeze.
    As for the warm floor.
    A normal solution if you do not heat the floors. That is, make insulation, for example, lay a reflective insulator. Inexpensive and convenient.
    And further.
    If you install a two-tariff meter, then, in general, it will be cheaper by two times at night to do the main heating.

     
    Comments:

    # 16 wrote: | [quote]

     
     

    The efficiency of all electric heaters is close to 100%, losses can only be due to radio emission, this is a hundredth of a percent.

     
    Comments:

    # 17 wrote: | [quote]

     
     

    I bought heaters from Textures for a country house. I want to note that this is actually the only quartz heaters whose quality is as claimed. I previously bought 1 heater, due to the presence of a metal frame, large cracks formed and there were current leaks on the frame, and it looked so that it’s a shame to even hang in a barn, I hung it in a garage away from trouble. Textures have a very large selection, at first I also bought 1 sample from them, I felt the difference with 1 from my experience within a few hours. The Texture Heater, in the first place, warmed much better, cooled for more than 2 hours, and suited the design of my house, and most importantly, there was no metal frame, and by the way, the consultants in this company were the most sane) I understood everything, he warmed the house with heaters, set 16 pieces. I agree with the statement that Textures today are the best quartz heaters on the market!

     
    Comments:

    # 18 wrote: Yuri | [quote]

     
     

    There is no difference than heating a room. At least heat with a refrigerator, at least with a TV. The eaten kilowatt will remain inside the house until the heat is transferred through the external walls, roof and floor to the outside. All these articles about the “most economical” heating are pseudoscientific.