# The Kitchen Hob Mistakes Worth Avoiding Before You Buy

**By Joy David** · 2026-06-16

![Two-burner black glass kitchen hob with a slim hood in a compact Singapore HDB kitchen for everyday cooking.](https://cdn.shopify.com/s/files/1/1805/8667/files/megafurniture-kitchen-hob-buying-mistakes-hdb.jpg?v=1781576795)

The most common kitchen hob regret in Singapore has nothing to do with the brand you chose. It is the cutout that does not match, the circuit that cannot handle the load, or the induction hob sitting in the kitchen while every pot you own is aluminium. All three are checkable in an afternoon, before you buy anything.

This guide runs through the mistakes that lead to costly reworks, delayed renovations, and quiet buyer regret, and tells you exactly what to measure, confirm, and ask before your hob arrives.

**Quick answer:** Measure your existing or planned countertop cutout, confirm your kitchen circuit capacity with a licenced electrician, and check whether your cookware is magnetic. Get those three right and you have avoided the majority of hob installation headaches in Singapore homes.

## Why Hob Mistakes Are More Expensive Here Than You Think

Replacing a hob is not just the cost of the appliance. A wrong-sized cutout means countertop work, which in stone or sintered stone surfaces runs into real money. A circuit that cannot handle an induction hob means calling a licenced electrician back for a dedicated line, a cost that rarely makes it into the original renovation quote. Returning a hob after it has been cut into a countertop is, to put it plainly, not a straightforward conversation.

The good news: every mistake below has a specific thing you can check or ask. None of them require technical expertise. They just require doing the check before the hob is ordered.

## Mistake 1: Getting the Cutout Dimensions Wrong

Hob cutout widths are not standardised across all models even within the same nominal size. A "60 cm hob" refers to the overall width of the appliance, but the cutout opening required in your countertop will be smaller and varies by model, sometimes by a few centimetres between brands.

Common cutout widths in the Singapore market run roughly 30 cm for a domino-style single zone, around 56-58 cm for a standard two or four-zone 60 cm hob, and wider for 75-90 cm models. Always pull the exact cutout dimensions from the product specification sheet, not from the appliance's overall body width.

If you are replacing an existing hob, measure the current cutout opening before you shop. Buying a hob with a larger cutout requirement means countertop modification; a smaller cutout can sometimes be filled, but rarely neatly.

### What to do

Download the installation guide, not just the product brochure, for any hob you are seriously considering. The cutout drawing is almost always on page one. Match it against your countertop opening or share it with your ID or contractor before confirming the order.

## Mistake 2: Ignoring Circuit Capacity

This is the one that catches the most buyers off guard. Singapore's standard 13A wall socket supplies roughly up to 3,000W. A portable single-zone induction hob stays within that range, around 2,000W, and plugs in without issue. A built-in two-zone induction hob typically draws 3,000-3,500W total. A 60 cm four-zone induction hob, the kind that looks impressive in showrooms and works brilliantly for big family cooking, often pulls 7,000W or more at full load. It is not a plug-in appliance.

Here is the part that often gets left out of the appliance conversation: upgrading to a high-output induction hob almost always requires a dedicated higher-rated circuit installed by a licenced electrician. It is not optional, and it is not covered in the hob's purchase price. Budget for it. Ask your electrician during the renovation phase, not after the hob arrives.

Gas hobs connect to a piped gas or LPG supply and have their own installation requirements, but do not draw from your electrical circuit the same way. The tradeoff is that gas installations in newer HDB flats are governed by HDB's own guidelines, worth confirming with your renovation contractor.

### What to confirm before buying

Ask the supplier for the hob's maximum power draw in watts. Then ask your licenced electrician whether your kitchen circuit can handle it. If it cannot, get a quote for a dedicated circuit at the same time. Knowing the full installed cost upfront saves the unpleasant surprise of a second contractor visit.

![Modern Singapore home kitchen with black glass hob, slim hood, organized cookware, and clear counter space.](https://cdn.shopify.com/s/files/1/1805/8667/files/megafurniture-kitchen-hob-mistakes-storage.jpg?v=1781576795)

## Mistake 3: Buying an Induction Hob With the Wrong Cookware

Induction hobs work by generating a magnetic field that heats the pan directly. If your cookware is not magnetic, or ferrous, nothing happens. The hob is not broken; the pot simply does not work with it.

Aluminium pans, most copper cookware, and older stainless steel pots without a magnetic base are all incompatible. Cast iron and most modern stainless steel with a ferrous base work well. The quick test: hold a fridge magnet to the base of the pot. If it sticks firmly, the cookware will work on induction. If it slides off, it will not.

This matters because many households in Singapore have a mix of cookware accumulated over years, and not all of it will make the switch. Factor in the cost of replacing incompatible pieces when you budget for an induction hob. [Browsing induction-compatible cookware](/collections/cookware) at the same time as your hob makes sense, as it avoids the delayed realisation on the first night of cooking in your new kitchen.

## Mistake 4: Choosing a Hob Type That Does Not Match How You Actually Cook

Showroom demos favour induction. The glass surface is clean, the zone rings light up satisfyingly, and the heat-up speed is genuinely fast. But the right hob type depends on what you cook, not what looks good in a renovation mood board.

If your household does a lot of high-heat wok cooking, a gas hob still has a practical edge for that specific use case: the open flame wraps around a wok base in a way that flat induction zones simply do not replicate for traditional stir-fry technique. A two-burner gas hob with a high-output wok burner serves that need directly.

Induction, on the other hand, excels at precise, controllable heat for sauces, soups, and braises, and the flat surface is genuinely easier to clean. Hybrid hobs, typically one gas burner alongside one or two induction zones, exist precisely for households that want both. The mistake is not choosing induction or gas, it is choosing without honestly accounting for what your household cooks most.

### A condition-specific guide

-   **Frequent high-heat wok cooking:** gas or a hybrid hob with a high-output gas burner.
-   **Household that prioritises easy cleaning and precise simmering:** induction, with compatible cookware budgeted in.
-   **Kitchen with limited ventilation and no gas piping:** induction is the pragmatic choice, but confirm the circuit first.
-   **Household split between these preferences:** hybrid two-plus-one configuration is worth the slightly higher price.

## Mistake 5: Overlooking Ventilation and HDB Renovation Rules

A hob without adequate ventilation is a long-term problem. Cooking fumes, grease, and heat need to go somewhere. A hood that is undersized for the hob's output, or positioned too far above the cooking surface, will not capture efficiently. Check that the hood's recommended extraction capacity matches the hob's cooking power, and follow the hood manufacturer's recommended distance between hob surface and hood base. This varies by model and is specified in the installation guide.

For HDB flats specifically, renovation works involving hacking, gas, and electrical changes require permits and must follow HDB's renovation guidelines, including noise hour restrictions. These rules exist and are enforced. Your renovation contractor should be handling permit applications, but it is your home, so confirm it with them rather than assuming it is covered.

One detail that catches some buyers: if you are reconfiguring the kitchen layout and shifting the hob location, you may be moving electrical points and possibly gas piping. Both require licenced work and, in HDB flats, may require advance approval. Plan this before finalising your hob selection, not after.

## Making the Final Decision: The Three-Check Method

Before confirming any hob purchase, run these three checks in order:

1.  **Cutout match:** Pull the installation guide, compare the cutout drawing to your countertop opening. If they do not match, find out whether the countertop can be modified and what it costs.
2.  **Circuit capacity:** Share the hob's maximum wattage with your electrician. Get a clear yes or no on whether the existing circuit handles it, and a quote for a dedicated circuit if it does not.
3.  **Cookware compatibility:** Do the fridge-magnet test on every pot and pan you plan to keep. Know what you will need to replace before you buy the hob.

If all three clear, you are in a much better position than most buyers. If any of them surface an issue, you have found it at the right time. [Browse the kitchen appliances range](/collections/kitchen-appliances) with Singapore delivery and professional installation on qualifying orders, or visit the Megafurniture Prestige showroom at 134 Joo Seng Road to see models set up and ask the specifics in person.

![Product-focused Singapore kitchen layout showing a black glass two-burner hob and slim hood with practical clearance.](https://cdn.shopify.com/s/files/1/1805/8667/files/megafurniture-kitchen-hob-guide-singapore.jpg?v=1781576795)

## Frequently Asked Questions

### Can I replace a gas hob with an induction hob in an HDB flat?

Yes, but it requires electrical work. An induction hob with meaningful output needs a dedicated higher-rated circuit, which a licenced electrician must install. You should also cap the gas point properly if it is no longer in use. Confirm the scope of works with your contractor and check whether a renovation permit is required under current HDB guidelines before starting.

### What is the difference between a 60 cm and a 75-90 cm hob, and which suits a Singapore kitchen?

The key difference is the number of cooking zones and the countertop footprint. A 60 cm four-zone hob fits most standard Singapore kitchen counters and suits families of three to five. A 75-90 cm hob gives more zone spacing and is better suited to larger kitchens or frequent multi-dish cooking. Always check the cutout dimensions against your specific countertop before deciding on width.

### Is induction really more energy-efficient than gas?

Induction transfers heat more directly to the cookware, so less energy is wasted compared to gas at equivalent cooking tasks. However, a four-zone induction hob at full load draws 7,000W or more, which is high peak demand. In practice, most households rarely run all zones at full power simultaneously. For everyday cooking, induction tends to be more efficient; for occasional high-heat wok cooking, the comparison is closer than marketing usually suggests.

### Do I need to buy a new hood when I change my hob?

Not necessarily, but check two things: whether the hood's extraction capacity is adequate for the new hob's output, and whether the hood is positioned at the manufacturer's recommended height above the new hob surface. A mismatched hood is a common source of persistent cooking odours. If you are switching from gas to induction, the thermal dynamics are slightly different, and a hood review is worth doing at the same time.

### What cookware works with induction hobs?

Any cookware with a ferrous, or magnetic, base: cast iron, carbon steel, and most modern stainless steel pots with a magnetic base layer. Aluminium, copper, and older non-magnetic stainless steel will not work. The fridge-magnet test is a reliable quick check. If the magnet sticks firmly to the base of the pot, it will work on induction. If it does not, that piece will need replacing.

## Buy Informed, Not Twice

The mistakes covered here are not obscure edge cases. They are the reasons people end up calling contractors back, modifying countertops they just paid to install, or standing in a new kitchen with pots that will not heat. None of them are hard to avoid. They just require checking three specific things before the purchase is confirmed, rather than after.

Megafurniture.sg carries a range of kitchen hobs and appliances with complimentary delivery and professional installation on qualifying orders. The Prestige showroom at Joo Seng Road is open daily from 11:30am to 9pm if you want to compare models in person before deciding. For questions, reach the team at +65 6950-2657, Monday to Friday, 9am to 6pm, or enquiry@megafurniture.sg.

The appliances stocked come from established brands, but the service around them is Megafurniture's own: delivery, professional installation, and after-sales support handled in Singapore. Across its furniture range, a growing proportion is now produced in the company's owned factories in Batu Pahat, Malaysia and Foshan, China, part of an ongoing effort to keep quality control and pricing under one roof, expanding through 2028.

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> Source: [Megafurniture](megafurniture.sg/blogs/articles/the-kitchen-hob-mistakes-worth-avoiding-before-you-buy)