Hob power: induction, electric, gas

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When choos­ing a hob, one of the first ques­tions that aris­es is how much pow­er the pur­chased device should have. This is an impor­tant fac­tor that will help you decide which pan­el is bet­ter to choose — gas, induc­tion or elec­tric. What depends on the pow­er of the unit and how much it is for dif­fer­ent mod­els, find out fur­ther.

What determines the power of the hob?

The pow­er of the hob is an impor­tant para­me­ter for choos­ing an appli­ance for three main rea­sons:

  • The speed with which your dish­es under­go heat treat­ment depends on the pow­er. Agree that it is bet­ter when there is an oppor­tu­ni­ty to cook dish­es as quick­ly as pos­si­ble.
  • Mod­ern stoves have burn­ers of dif­fer­ent capac­i­ties, and this is very con­ve­nient. If you only need a small amount of heat, why waste extra gas or elec­tric­i­ty on use­less air heat­ing in the kitchen. How­ev­er, the reverse side of the issue should also be tak­en into account — the pow­er of the largest burn­er should also be suf­fi­cient to quick­ly cook a large pot of soup.
  • In mod­ern kitchens, air con­di­tion­ers are often installed. When heat ener­gy is released in too large quan­ti­ties, the load on the air con­di­tion­er increas­es accord­ing­ly. At the same time, the extra costs for both heat­ing the air and cool­ing it are com­plete­ly unjus­ti­fied.

So, it is worth choos­ing a hob with such pow­er that the cook­ing time is fast, but the heat gen­er­at­ed is opti­mal.

Electric hob

An elec­tri­cal appli­ance of tra­di­tion­al design con­sumes the great­est elec­tri­cal pow­er of all the types con­sid­ered, so we will start the review with this option.

The most wide­spread on the mar­ket in our time have received stoves with four burn­ers. Thus, the stan­dard num­ber of heat­ing points has not changed over the decades of the exis­tence of home stoves. The con­nec­tion is also sim­i­lar. How­ev­er, man­u­fac­tur­ers went to mod­ern­ize the places of heat­ing, so they have dif­fer­ent capac­i­ties:

  • the first burn­er has the small­est pow­er — 0.4–1 kW;
  • two burn­ers have an aver­age pow­er of approx­i­mate­ly 1.5 kW;
  • the fourth burn­er has the high­est pow­er — up to 3 kW.

Electric hob

Thus, the total pow­er con­sump­tion reach­es 7 kW. How­ev­er, there are elec­tri­cal sur­faces with addi­tion­al prop­er­ties, includ­ing:

  • with the pos­si­bil­i­ty of an adjustable increase in the total heat­ing area for each point — addi­tion­al rings around the disks;
  • with the option of com­bin­ing two adja­cent burn­ers to work with dish­es of non-stan­dard oblong shape — goose-cook­ers and the like;
  • with a large num­ber of heat­ing points, that is, not four, but more, for exam­ple, six.

Accord­ing­ly, the total pow­er can increase up to 10 kW.

Of course, with such indi­ca­tors, it is nec­es­sary to think in advance how such ener­gy-demand­ing equip­ment will be pow­ered, oth­er­wise the wires in the wall may sud­den­ly burn out dur­ing oper­a­tion of the pan­el. To restore, you will have to look for the place of the break, open the wall, con­nect the wires and close the wall again. This can be a big prob­lem, so talk to a pro­fes­sion­al about your pow­er grid’s capa­bil­i­ties.

For apart­ments in old Sovi­et-built hous­es, it is not rec­om­mend­ed to pur­chase elec­tric stoves with a total pow­er of more than 3.5–4 kW. In hous­es of mod­ern con­struc­tion, it is allowed to install elec­tri­cal equip­ment with an ener­gy con­sump­tion of up to 10 kW.

Also, do not dis­count oth­er elec­tri­cal equip­ment that cre­ates a load on your home net­work. These include a boil­er for heat­ing water, a wash­ing machine, an iron, an elec­tric ket­tle, a microwave, a laser print­er. Each of them either con­sumes a large amount of elec­tric­i­ty for a long time, or cre­ates a short-term, but tan­gi­ble peak load, or both at once. Try not to run your new elec­tric stove at the same time as oth­er pow­er­ful con­sumers.

Many mod­ern elec­tric hobs have burn­er heat sen­sors that warn you of a burn haz­ard if you touch the sur­face of the hob. If you have such an oppor­tu­ni­ty, try to pur­chase just such a mod­el. First­ly, this will increase the safe­ty of work­ing at the stove, and sec­ond­ly, know­ing in advance that the disk is still hot, you can put oth­er dish­es on it and save on elec­tric­i­ty.

induction hob

The induc­tion hob is the most mod­ern type of equip­ment for heat­ing food in the kitchen. Its aver­age pow­er is about 7 kW. How­ev­er, please note that this is the con­sol­i­dat­ed pow­er of the device.

Due to the fact that cook­ing on the induc­tion sur­face takes a min­i­mum of time, the simul­ta­ne­ous oper­a­tion of all discs almost does not occur. And even if this hap­pens, a short peri­od of peak ener­gy con­sump­tion is quick­ly replaced by inac­tiv­i­ty, as the cook­ing is already over — the soup is cooked, the fish is fried, the ket­tle is boiled.

induction hob

Thus, although the pow­er of an induc­tion cook­er is equal to the pow­er of a con­ven­tion­al elec­tric stove, by heat­ing only the bot­tom and bot­tom of the cook­ware (and not the air below it), elec­tric­i­ty is con­sumed only for the heat treat­ment of prod­ucts. It is impor­tant to note that sav­ing ener­gy requires the use of spe­cial dish­es in cook­ing.

Induc­tion hobs are the most eco­nom­i­cal type of kitchen equip­ment avail­able today, although they are expen­sive.

Gas hob

It is not easy to find a spe­cial pow­er meter for deter­min­ing this para­me­ter near a house­hold gas stove, since gas is not elec­tric­i­ty, and it is impos­si­ble to direct­ly mea­sure the amount of ener­gy spent (or received) in the process of burn­ing hydro­car­bon fuels at home.

So, in order to estab­lish the pow­er of such a pan­el, direct count­ing can be replaced by anoth­er method, for exam­ple, by the amount of gas that has passed through the meter. The calorif­ic val­ue of nat­ur­al gas is 8–11 kW per hour/m. cube It is pos­si­ble to eval­u­ate the qual­i­ty of gas in the kitchen only sub­jec­tive­ly, but it is still real­is­tic to deter­mine the min­i­mum and max­i­mum val­ues, based on the fol­low­ing para­me­ters:

  • the approx­i­mate pow­er of one burn­er of a stan­dard house­hold gas hob is esti­mat­ed at about 2–2.5 kW;
  • the total calorif­ic val­ue of the entire gas appli­ance for 4 burn­ers is approx­i­mate­ly 8–10 kW.

The reduced pow­er of the small­er burn­ers is com­pen­sat­ed for by the increased heat dis­si­pa­tion of the largest burn­er.

At the same time, the pow­er of the burn­er depends on its diam­e­ter, which can be seen from the table (the data are giv­en for the state when the burn­er gas valve is ful­ly open):

Burn­er diam­e­ter, mm fifty 75 130
pow­er, kWt one 2 3.5

For the most com­mon option (one place for 50 mm, two for 75 mm and one for 130 mm), the total pow­er will be 8.5 kW.

Giv­en such a para­me­ter as pow­er, you can make a com­pe­tent choice of the hob. Since the mar­ket offers var­i­ous options, every­one can choose the best mod­el for them­selves. At the same time, it should be borne in mind that by over­pay­ing for the pur­chase of an ener­gy-sav­ing unit, in the future you can save on ener­gy for many years.


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