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how does an electric cooktop work

by Demond Bosco Published 3 years ago Updated 2 years ago
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Here’s how it works:

  1. Beneath the glass-ceramic surface, electrical current flows through a unique metal coil. ...
  2. Because of glass-ceramic’s low thermal expansion and infrared transmission and emission characteristics, the pot or pan on the cooking zone is warmed evenly by the energy transmitted through the ...
  3. Food is cooked by the transfer of heat from the cookware. ...

More items...

In a smoothtop electric cooktop, the coils are placed under a single sheet of heat-tempered glass-ceramic material that covers the cooktop. The electric coils heat in the same way, radiating heat into the glass, which radiates it into pots and pans.

Full Answer

How does a ceramic cooktop work?

The coils are covered by a sheet of ceramic glass, which insulates the coil and allows it to get hot very quickly. The heat is then transferred to the cooking vessel you place on the ceramic glass top, which in turn transfers the heat to the food inside the pan.

How does an electric stove work?

If your stove has coils, the heat transfers directly from these coils to your cookware. If your stove has a glass or ceramic top, the heat emanates to this cover and then transfers to your pots and skillets. Each heating element on your electric stove (typically four or five in total) connects to its own control switch.

How does a smoothtop electric cooktop work?

In a smoothtop electric cooktop, the coils are placed under a single sheet of heat-tempered glass-ceramic material that covers the cooktop. The electric coils heat in the same way, radiating heat into the glass, which radiates it into pots and pans.

How does a radiant cooktop work?

Radiant Coils. Radiant heat cooktops use metal coils heated by electricity. The coils are covered by a sheet of ceramic glass, which insulates the coil and allows it to get hot very quickly. The heat is then transferred to the cooking vessel you place on the ceramic glass top, which in turn transfers the heat to the food inside the pan.

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What is the difference between induction and electric cooktops?

Electric cooktops are made up of coiled metal elements that sit below a ceramic surface, which heats the surface electronically to the desired temperature. The heat produced heats the pan ready for cooking. Induction cooktops use electromagnets instead of metal coils, which directly heat the pan, and not the surface.

How does a cooktop work?

0:062:59How Does a Gas Cooktop Work? — Appliance Repair & Tips - YouTubeYouTubeStart of suggested clipEnd of suggested clipNot all stovetops look the same. But they operate on similar principles. In this video we willMoreNot all stovetops look the same. But they operate on similar principles. In this video we will address how a gas stove top operates as well as potential problems you may encounter. Each surface burner

What is needed for an electric cooktop?

Electric stoves require two hot wires, one neutral and one ground, that need their own joined breakers. Wiring these appliances requires a 50-amp circuit compatible with 240 volts and a 6-gauge wire. You want to shut down all of the power in your home before installing this type of outlet.

Do electric cooktops use a lot of electricity?

Most electric ovens draw between 2,000 and 5,000 watts, with the average electric stove wattage coming in at around 3,000 watts. So how much energy does an electric stove use per hour? Assuming an electricity rate of 12 cents per kilowatt-hour (kWh), a 3000-watt oven will cost you about 36 cents per hour at high heat.

How do I know if my cooktop is induction?

One of the easiest ways to see if you have an induction hob is to place a magnetic pan on top of the stove. Power on the induction cooktop, and if the pan heats up, you likely have an induction hob rather than ceramic hobs.

What are the pros and cons of induction cooktops?

Pros and Cons of Induction CookingWhat is induction cooking? ... Pro: The Surface of an Induction Cooktop is Cool to the Touch. ... Con: You Need to Be Careful About Leaving it On. ... Pro: Induction Cooking is Faster. ... Con: You Need Induction Ready Cookware. ... Pro: Precise Cooking and Temperature Control.More items...•

How do you install an electric cooktop?

Step 1: Disconnect and check the fuel source. ... Step 2: Remove old cooktop. ... Step 3: Measure countertop opening and check cooktop dimensions. ... Step 4: Remove cooktop and detachable pieces from packaging. ... Step 5: Install clips and brackets to hold cooktop. ... Step 6: Lower cooktop into place. ... Step 7: Connect cooktop to fuel source.More items...

Do electric cooktops need 220?

Typical Electric Ranges The majority of electric ranges for a home require a 220- to 240-volt circuit with a 40 or 50 amp breaker. Generally these ranges have four or more working burners, in addition to a stove.

How is a cooktop wired?

Drop-in cooktops or wall ovens are usually hardwired, with the circuit wiring connected directly into the appliance connection panel, without the benefit of a plug-in cord and receptacle.

Do chefs prefer gas or electric stoves?

Chefs prefer gas stoves because when compared to electric ovens or induction stovetops, they can control the heat of a gas stove more easily with different knobs and dials. Gas stovetops offer more precise heat output, so it's easy to get the perfect temperature for cooking various dishes.

What uses the most electricity in a home?

What Uses the Most Energy in Your Home?Cooling and heating: 47% of energy use.Water heater: 14% of energy use.Washer and dryer: 13% of energy use.Lighting: 12% of energy use.Refrigerator: 4% of energy use.Electric oven: 3-4% of energy use.TV, DVD, cable box: 3% of energy use.Dishwasher: 2% of energy use.More items...•

Is gas or electric cooktop better?

In the end, neither gas nor electric cooktops are an inherently superior choice. The type of cooktop you should install in your kitchen depends completely on your individual needs and cooking priorities. If heat accuracy and response time or if cooking with a wok is your top concern, you'll likely want to go with gas.

How does a gas cooktop work?

A gas pilot light or electric pilot sits to one side of the burner and sends a small flame or spark to ignite the oxygen-gas mixture as it flows through the holes in the burner. By turning the knob to a higher heat setting, you increase the flow of gas and air, and the flame gets larger.

What's the difference between a range and a cooktop?

A range is the common kitchen appliance you'll find in most American kitchens. It combines a stovetop, also called a cooktop, and an oven. A cooktop is the flat, open surface you sear and saute on that does not have an oven below it, but instead integrates into countertops.

What are the disadvantages of induction cooker?

Induction Cooktops and Ranges: the ConsIt feels very different from cooking with gas. ... It can get expensive when you convert from gas to electric. ... You need the right cookware. ... It might emit a sound. ... You may need an analog thermometer.More items...•

How do you use a gas cooktop?

1:063:59How to Use Your Gas Cooktop - YouTubeYouTubeStart of suggested clipEnd of suggested clipOnce lit push the control knob in and turn it counterclockwise to your desired flame. Size adjustMoreOnce lit push the control knob in and turn it counterclockwise to your desired flame. Size adjust the flame as needed using the knob markings.

How do Induction Cooktops Work?

Induction cooktops turn pots and pans into their own heat source by creating electromagnetic energy through copper coils that directly interacts wi...

What Kind of Dishes Can You Use on an Induction Cooktop?

Only ferromagnetic pots and pans are compatible with induction cooking. Ferromagnetic cookware either contains a layer or is entirely made of magne...

Benefits of Induction Cooktops

Induction cooktops offer unique benefits to help make cooking for your family easier. Some benefits of induction stovetops include:Temperature cont...

How do Electric Cooktops Work?

Induction cooktops are one of three basic types of electric cooktops. The other types of electric cooktops – coil and radiant – feature metal coils...

Benefits of Electric Cooktops

When you’re shopping for a new cooktop, you have to weigh the pros and cons of each option to find the right model for your kitchen. Select electri...

Is an Induction Cooktop Better Than Electric?

Whether an induction or electric cooktop is the better option for your kitchen depends on your personal cooking needs and preferences. If you’re lo...

Are all Glass Top Stoves Induction Cooktops?

No. All induction cooktops have a glass stovetop, but not all glass stovetops use the induction process to generate heat. Many radiant electric coo...

How do induction cooktops work?

Let's summarize all this quickly and simply: 1 An induction cooker looks much the same as any other ceramic cooktop, usually with distinct zones where you can place your pots and pans. The cooking surface is usually made from tough, heat-resistant glass-ceramic such as Schott CERAN®. 2 Inside each cooking zone, there's a tightly wound coil of metal. When you turn on the power, an alternating current flows through the coil and produces an invisible, high-frequency, alternating magnetic field all around it. Unless there's a pan on the cooking zone, no heat is produced: the cooking zone remains cold. You might be wondering why we need a high frequency. Although your home power supply alternates at about 50–60Hz (50–60 times per second), an induction cooktop boosts this by about 500–1000 times (typically to 20–40kHz). Since that's well above the range most of us can hear, it stops any annoying, audible buzzing. No less importantly, it prevents magnetic forces from shifting the pan around on the cooktop. 3 Place a pan on the cooking zone and the magnetic field produced by the coil (shown here with blue lines) penetrates the iron inside it. 4 The magnetic field induces whirling electrical (eddy) currents inside the pan, turning into a heater (shown here in orange). 5 Heat from the pan flows directly into the food or water inside it (by conduction).

Why use an induction cooktop?

Photo: Gas burners are easy to control, but waste energy by heating the surrounding air and the cooktop as well as the food in the pan. Since they're naked flames, they're more likely to cause a fire than any electric method of cooking.

What is induction?

And the first thing you need to know is that "induction" is a shortened way of saying "electromagnetic induction." In a nutshell, induction means generating electricity using magnetism. It stems from the simple fact that electricity and magnetism aren't separate, unconnected things (as we originally learn in school) but two different aspects of the same underlying phenomenon: electromagnetism.

What is the science behind electromagnetism?

So far, the emerging science of electromagnetism was completely theoretical: very interesting, but not much use. Things took a much more practical twist when the brilliant English physicist and chemist Michael Faraday figured out how he could use electricity and magnetism to develop a very primitive electric motor, also in 1821. He placed a magnet near a piece of wire into which he fed an electric current. As the current flowed through the wire, it generated a magnetic field around it (in the way Oersted had found), pushing itself away from the magnetic field that the permanent magnet generated. Other inventors (notably Englishman William Sturgeon and American Joseph Henry) went on to develop practical electric motors, while Faraday continued to experiment with the science. In 1831, he pulled off the opposite trick: he showed how rotating a coil of wire through a magnetic field would make an electric current flow through it—inventing the electricity generator that would soon (in the hands of pioneers such as Thomas Edison) bring electric power to the world.

What is the difference between microwave and induction cooking?

One, the microwave oven, uses high-energy radio waves to heat food quickly and efficiently in a fraction of the time you need with a conventional stove. The other, induction cooking, uses electromagnetism to turn cooking pans into cookers (creating heat energy inside the pan itself, instead of firing it in from outside), which cooks food more quickly and safely with less energy. Everyone knows about microwaves these days, but induction cookers are much less well understood. Let's take a closer look at exactly what they are, how they work, and whether they're better or worse than more familiar forms of cookery.

How does induction work?

Let's summarize all this quickly and simply: An induction cooker looks much the same as any other ceramic cooktop, usually with distinct zones where you can place your pots and pans. The cooking surface is usually made from tough, heat-resistant glass-ceramic such as Schott CERAN®.

How does an electric toothbrush charge?

Photos: Electric toothbrushes charge by induction : electromagnetic induction allows energy to flow from the (white) charger to the battery in the (dark blue) brush even though there is no direct electrical connection between them.

How do electric cooktops work?

(European-style electric burners are built similarly except the wire is embedded in a solid metal disk.) In a smoothtop electric cooktop, the coils are placed under a single sheet of heat-tempered glass-ceramic material that covers the cooktop. The electric coils heat in the same way, radiating heat into the glass, which radiates it into pots and pans. Halogen electric cooktops are similar, except the heating elements are rings of halogen bulbs under the glass rather than electric coils.

How does a gas stove work?

A gas stove burner consists of a burner assembly attached to a small gas valve that is connected to the main gas line. When you turn the knob, the intake valve opens and gas flows through a venturi tube, a wide pipe that narrows in the middle. Gas enters through one of the wide ends, and as it passes into the narrowed section, ...

What are the pros and cons of induction cooktops?

Pros Induction cooktops offer instantaneous and precise heat control , even at very low temperatures. And unlike gas, induction is extremely heat e“fficient. Since the heat is generated in the pan itself, most of it (about 85 percent) stays in the pan, cooking food slightly faster than gas burners and much faster than electric burners. If you’re new to induction, you may find that pots boil over sooner, so watch closely. Relatively little heat is lost in the air, which means that induction cooktops won’t heat up your kitchen as gas or electric cooktops can—an advantage in the summertime or in a crowded kitchen. Plus, the cooktop itself stays cool, a nice safety bonus. If you put a magnetic pan over half of an induction element, the other half of the element stays cool to the touch.

Why does my cooktop make a noise?

And some lower-quality cookware with loose-fitting handles, lightweight lids, uneven bottoms, or poorly clad layers of metal can vibrate so much in the high-frequency oscillation of the cooktop’s magnetic field that they actually generate noise.

What causes a gas burner to turn blue?

Gas burners can work with either natural gas or propane. Both are hydrocarbon fuels, and their hydrogen content makes the gas flame appear blue. A yellow or orange flame indicates an excess of oxygen and a slightly cooler temperature. The orange color comes from unburned carbon. It’s natural for the tips of the flames on a gas burner to appear yellow-orange where the flame is cooler, but if the entire flame appears yellow, the ratio of gas to oxygen is too low, and the gas burner or intake valve may be clogged and need cleaning. A red flame is cooler still and typically causes soot (unburned carbon) to appear on the bottoms of pans.

How much energy does a Pros electric burner use?

Therefore, it conducts most of its energy (about 75 percent ) directly into the pan, rather than radiating it into the air as a gas flame would.

What is the least efficient fuel source for heat transfer?

Cons Gas is the least e‚ffcient fuel source at heat transference; up to 60 percent of the heat generated by a gas burner can escape into the air instead of going in the pan. Also, not all utility companies supply natural gas, although you can have propane regularly delivered to a tank on your property.

How Do Induction Cooktops Work?

In essence, induction cooktops are electric since they don’t use gas to create heat. However, induction cooktops provide heat through coils underneath the surface. Around 90% of the electricity consumed by an induction stove is used for cooking food. There’s no energy escaping, giving you instant heat and controlled temperature.

How Do Electric Cooktops Work?

Also known as radiant cooktops, electric cooktops offer centralized heat. Electric cooktops have an electrical current that flows through a metal coil underneath the glass or ceramic surface. The coil becomes hot and starts glowing due to the electrical resistance. It will transfer its heat through the glass using infrared energy.

Induction Cooktops

Induction cooktops are gaining popularity, especially as their prices decline. Many of its characteristics make it a popular choice for homeowners. Nonetheless, there are some disadvantages (mostly around its price) that are worth considering before making a decision.

Electric Cooktops

Electric cooktops have been around for decades, and most people feel very comfortable using them. The main difference with induction cooktops is that electrical cooktops have residual heat, even after the electrical current stops. Of course, electric cooktops also have a downside, mainly around the type of heat they produce.

Choosing The Right One

When choosing between an induction cooktop and an electric cooktop, the choice is very personal. It all depends on your preferences and priorities. If you prefer to use something that you’re already familiar with, stick with an electric cooktop.

What is the difference between ceramic and electric stoves?

All electric stoves use the same basic circuitry to produce heat. But, in the case of ceramic stove tops, the heating element is hidden under a smooth surface. Is there a significant difference between using conventional coils versus radiant heat? In terms of performance, the major difference is that conventional coils may heat up their surroundings, whereas a smooth-top stove is more efficient because it tends to heat just the pot.

How many volts does an electric stove use?

When this switch is turned on, it closes the circuit by connecting two "legs," each with 120 volts of alternating current. Electric current travels down each leg, and when this current collides in the heating element, heat is produced.

Why use radiant heating over electric?

Other reasons why people may decide to choose radiant heating versus an electric coil stove include ease of cleaning and aesthetics. However, conventional coils are much easier to access in order to replace or repair them, and they tend to be cheaper than ceramic or glass stove tops.

What causes a heating element to activate?

Instead, an electric current causes a heating element to activate. If your stove has coils, the heat transfers directly from these coils to your cookware. If your stove has a glass or ceramic top, the heat emanates to this cover and then transfers to your pots and skillets. Advertisement.

What is a temperature switch?

A temperature switch also exists as part of this circuit, which allows you to easily adjust the heat output for your electric stove top. When the specified temperature is reached, the circuit will open and current will no longer be supplied to the heating element. But, when the temperature cools down too much, the circuit will close again ...

Can you use a gas stove if the electricity goes out?

Another perk of a gas stove is that you can continue to use it by lighting the gas with a match if your electricity goes out. Not everyone feels comfortable having an open flame in the kitchen, though, and gas stove tops can be difficult to clean.

Can you heat a gas stove faster than an electric stove?

Truthfully, it comes down to personal preference. Direct flames from gas burners may heat your cookware faster than the heating elements in electric stoves, and it's easier to keep flames at a steady height and maintain a specific temperature.

Why do induction cooktops work?

Because the heat doesn't have to transfer through the cooking surface, induction cooktops can provide fast cooking, optimal temperature control and easy cleaning due to the fact that the glasstop surrounding the element stays cool. Learn more about induction cooktops vs gas or electric to find out if it’s the right choice for your home.

Why are electric cooktops not responsive?

Because it takes time for each of these surfaces to heat up and cool down, electric cooktops are not as responsive as induction cooktops. In addition, some heat loss might occur since electric cooktops heat the surface under and around cookware, rather than heating it directly. Cooking techniques.

How much water does a Whirlpool induction cooktop boil?

For example, this Whirlpool ® 30-inch Electric Induction Cooktop boils 12 cups of water on average 25% faster 1 with a Booster option. This does mean you may need to keep an eye on your recipes at first since they may cook faster than you may expect.

How to tell if a stove is induction or electric?

To check, turn on the stove or cooktop without any cookware on top. If the surface heats up significantly or begins to glow, it’s a traditional electric cooktop. If it doesn’t get hot or glow, or only warms slightly, it’s an induction cooktop. Induction cooktops may produce a small amount of heat without cookware, but not enough to cook food.

What is the difference between an electric stovetop and an induction stovetop?

What is the difference between an induction stovetop vs electric? There are three basic types of electric stovetops and induction is one of them. Induction cooktops use an electromagnetic charge to create heat directly within compatible cookware.

What is the difference between an induction cooktop and a gas cooktop?

Gas cooktops use propane or natural gas to produce an open flame that comes into direct contact with cookware. Induction cooktops do not radiate heat on their own , but create an electromagnetic charge that interacts with compatible cookware. This interaction causes the cookware itself to heat up.

What is the difference between a radiant and a coil?

Coil: Uses electricity to heat up a metal coil that comes into direct contact with cookware and heats from the bottom of the pot or pan . Radiant: Houses the heated coils beneath a ceramic-glass surface and radiates the heat through it to cookware sitting on top. Also heats cookware from the bottom.

How does a radiant heat cooktop work?

Radiant heat cooktops use metal coils heated by electricity. The coils are covered by a sheet of ceramic glass, which insulates the coil and allows it to get hot very quickly. The heat is then transferred to the cooking vessel you place on the ceramic glass top, which in turn transfers the heat to the food inside the pan. Though not as common, some radiant heat cooktops use gas flames instead of electric coils beneath the ceramic surface. No special cookware is needed for radiant-heat cooktops, but flat-bottomed pots and pans allow for better heat distribution.

What is a radiant cooktop?

Radiant cooktop stoves are commonly referred to as electric smooth tops or ceramic glass tops. These stoves utilize a smooth, flat surface with four or more radiant heat elements built underneath them. Radiant cooktops are not to be confused with induction stoves, which also have a smooth ceramic top, but use a very different method of heating food.

What is a ceramic cooktop?

A ceramic cooktop is any cooktop with a smooth surface made of tempered ceramic glass. Though you'll usually find all ceramic smoothtops lumped together on the sales floor, there are actually a few different options to pick from:

Why does an induction cooktop not heat up?

That's because it doesn't use a heat source to transfer heat to the pan like a traditional cooktop -- instead, the interaction between magnets and metal heats the pan directly, effectively turning the pan into a burner. That means that the cooktop won't heat up until you put a pan on it, even if the power is on!

Why are ceramic cooktops so popular?

Lots of ceramic cooktops include features that make cooking easier and safer too. Many have heat indicators that show when the stovetop is hot, and induction cooktops don't even heat until a pan has been placed on them. Some ceramic cooktops even turn off automatically after a set period of time -- which means curious kids are less likely to get hurt when helping out in the kitchen. Ceramic cooktops also eliminate the need to run potentially dangerous gas lines through your kitchen -- all you need is an electrical connection to make them work. The reduced risk of gas leaks can make your whole home much safer in the event of an earthquake, storm, flood, or fire.

What is the difference between halogen and radiant cooktops?

The practical differences between the first three are minor. Halogen bulbs light up right away, so you always know when the cooktop is on, and the heating elements tend to cool off a tiny bit faster compared to radiant cooktops. Other than that, they all cook the same and offer all the same conveniences.

Is ceramic cooktop a new technology?

Though they're not exactly a brand-new technology, these appliances get more convenient and more efficient every year. With faster heating than gas, more cooking power than electric coils, and a sleek, low-profile look, ceramic cooktops are the perfect balance of form and function. But what are ceramic cooktops, and how do they work? Before you upgrade your kitchen with one of these powerhouses, here’s the lowdown on the options available and how they can each make your life a little easier.

Can you use induction cooktops with magnets?

Induction isn' t perfect either though: only certain types of pots and pans (ferromagnetic iron, to be precise) will work with the magnet-based cooking technology. So if you're thinking about getting an induction cooktop, be aware that you may have to invest in some new cookware as well.

Can you clean a ceramic cooktop with a damp cloth?

Let's take these one at a time. First of all, cleaning is much simpler with a ceramic cooktop. The smooth, sealed heating elements make it easy to wipe up spills with just a damp cloth or soft sponge -- no more metal grates collecting oil!

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