Switching From Electric To Induction Hob: A Diy Guide

how to change electric hob to induction

If you're looking to replace your electric hob with an induction hob, there are a few things to consider. First, you'll need to ensure that the power supply to your new hob is sufficient, and you may need to run a new supply out to the hob's location. You'll also need to install an isolating switch, such as a cooker point type switch, and feed the supply via an RCD or RCBO at the fuse board. If your cooker switch plate is a 1-gang size, you can replace it with a switch fuse spur to give you the required 13A protection. Additionally, check that your pans are compatible with induction hobs – these hobs require ferrous (iron/steel) pans, so a magnet should stick to the base of your pan. Lastly, you may need to consult an electrician, especially if you're unsure about any of the electrical requirements or specifications.

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Ensure the power supply is sufficient for the new induction hob

When changing from an electric hob to an induction hob, it is important to ensure that your power supply is sufficient for the new appliance. Here are some detailed steps and considerations to help you achieve this:

Firstly, it is recommended to consult an electrician before fitting an induction hob. They will be able to assess your current electrical setup and advise on any necessary adjustments. It is also important to refer to the technical specifications of the induction hob you plan to install, as different models may have varying power requirements.

In some cases, you may need to run a new power supply to the position of the new hob. This could involve installing a new circuit, especially if your current one cannot handle the demands of an induction hob. Induction hobs require a special power supply, and you may need to upgrade your cooker socket or install a new cable run from the fuse box to the hob.

When it comes to circuit breakers, induction hobs typically require a higher amperage. A 32-amp circuit breaker is commonly recommended, but some hobs may require a 40-amp breaker. It is important to ensure that the cable supplying the hob is appropriately sized for the breaker.

Additionally, consider the number of appliances connected to the same circuit as the hob. If your oven is also connected to the same circuit, it will increase the load. In some cases, it may be advisable to have separate circuits for the hob and oven to ensure sufficient power supply.

Lastly, pay attention to the kilowatt (kW) rating of your new induction hob. A higher kW rating will require a higher-capacity power supply. By comparing the kW rating of your new hob with that of your previous electric hob, you can determine if your existing supply is sufficient or if upgrades are necessary.

By carefully considering these factors and seeking professional advice where needed, you can ensure that your power supply is sufficient for your new induction hob.

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Check if rewiring is required

When replacing an electric hob with an induction hob, it is important to check whether any rewiring is required. Induction hobs have higher power requirements than electric hobs, so it is crucial to ensure that your electrical setup can handle the increased load.

First, consult the user manual for your chosen induction hob model. It will specify the power requirements, including the current rating, which is typically higher for induction hobs. For instance, the Bosch hob model PIA611B68B comes with a 13 amp plug. If your current setup cannot accommodate the required amperage, you may need to install a switch fuse spur to provide the necessary protection.

Next, consider the circuit your hob is connected to. If your oven is also connected to the same circuit, the combined load of both appliances may exceed the circuit's capacity. In such cases, it is advisable to install a separate spur for the hob to ensure it has a dedicated power supply. This is especially important if you opt for a more powerful induction hob, as they typically require more than 30A, and a standard 32A rated spur may not be sufficient.

Additionally, check the type of connection your current hob uses. If it is single-phase, you must choose an induction hob that supports single-phase power. Most induction hobs marketed in the UK support single-phase, but it is crucial to verify this before making the switch.

Finally, consult a qualified electrician to assess your current electrical setup and advise on any necessary rewiring. They can ensure that your home's electrical system can safely handle the power requirements of an induction hob and perform any required upgrades or installations.

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Choose the correct type of pans for the induction hob

Induction hobs use electromagnetic fields to generate heat directly in the pan, so not all materials are suitable. To cook effectively on an induction hob, the cookware must have magnetic properties.

To test if your existing cookware is compatible with an induction hob, use a magnet. If the magnet sticks to the bottom of the pan, it should work. If the magnet doesn't stick, the cookware isn't suitable. Some manufacturers produce cookware explicitly designed for induction cooking, which will have a label or symbol indicating its compatibility.

Cast iron pans are a top choice for induction cooking. They are highly magnetic and have excellent heat retention and even heating. Carbon steel pans are also highly magnetic and work well on induction hobs. They are lighter than cast iron but still offer excellent heat retention and distribution. Stainless steel pans may also be compatible with induction hobs, depending on whether they contain enough iron to create a magnetic reaction.

Aluminium pans can work on induction hobs, but only if they have an iron or steel insert in the base that reacts to the magnetic coils in the hob. Pans made from non-magnetic materials such as copper or glass will not work on induction hobs unless they have a special magnetic layer added to the base.

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Disconnect the old hob cable and remove it

Disconnecting and removing your old hob is a crucial step in installing your new induction hob. Here is a detailed guide to help you through the process:

Before beginning any work, ensure you have turned off the power supply to your old hob at the mains. This is an essential safety precaution. Once the power is off, you can start by removing the old hob's control panel. This will give you access to the electrical connections and cables. It is important to take your time and be gentle during this process to avoid damaging any surrounding surfaces or cabinetry.

The next step is to locate the electrical cable connected to your old hob. It is usually attached to the back or side of the unit. Carefully disconnect the cable from the hob by loosening any clamps or connectors that secure it in place. Depending on your setup, you may need to remove the cable from a junction box or directly from the hob itself. Ensure that you have enough slack in the cable to work with.

After disconnecting the cable, you will need to release the hob from its mounting. This typically involves removing any screws, brackets, or fasteners that hold the hob in place. Be sure to keep track of the screws and hardware as you remove them, as you may need them again when installing your new induction hob. With the screws removed, you should now be able to carefully lift and remove the old hob from its cut-out.

Now that the old hob is removed, take the opportunity to clean the area thoroughly. This includes the surrounding countertops, cabinetry, and the cut-out itself. Use a mild cleaning solution and a soft cloth to wipe away any dirt, grease, or residue that may have accumulated over time. Ensuring a clean and debris-free environment will help make the installation of your new induction hob easier and reduce the risk of any contaminants affecting its performance.

Finally, carefully coil or wrap the disconnected cable and secure it safely out of the way. This will ensure that it does not interfere with the installation of your new induction hob. At this point, you may also want to refer to the user manual or installation guide for your new induction hob to ensure that you have all the necessary tools, hardware, and knowledge to complete the installation process successfully.

Remember, if you are uncomfortable or unfamiliar with electrical work, it is always best to consult a qualified electrician to assist you in disconnecting and removing your old hob and installing the new one.

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Install an isolating switch for the new hob

When changing from a gas hob to an induction hob, the first step is to ensure that the gas connection is made safe by capping it off with the help of a gas safety engineer. Induction hobs require more electricity than standard electric hobs, so it is important to ensure that your circuit can handle the increased load. You may need to install a separate spur for the hob to ensure it receives sufficient power.

In terms of installing an isolating switch for the new induction hob, opinions vary. Some sources state that local isolation switches are not required for hobs, even though they are often fitted. However, other sources recommend installing an isolating switch for added safety and convenience. This is especially true if you have children, as it ensures you can make certain that the hob is turned off when not in use.

The isolating switch can be situated in a cupboard next to the hob to avoid interfering with any tiling. It is worth noting that in Scotland, local isolation switches above the worktop are required.

Before installing an induction hob, it is always best to consult an electrician to ensure that your circuit can handle the load and to determine if an isolating switch is necessary for your specific setup.

Frequently asked questions

You will need to ensure that the spur to your hob is rated for sufficient current for the induction hob. If your ceramic hob is single-phase, you will need to get an induction hob that supports single-phase. You may need to install a separate spur for the hob.

Induction hobs will only work with ferrous (iron/steel) pans. You can test if a pan will work on an induction hob by seeing if a magnet sticks to it.

If your cooker switch plate is 1 gang size, you can replace it with a switch fuse spur to give you the required 13A protection.

Induction hobs are controllable, quick to heat up, and easy to clean.

Yes, it is recommended to consult an electrician before fitting an induction hob.

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