Joybuy Insights

Gas Hobs Buying Guide: How to Choose the Right Size, Burners and Safety Features

Choosing a built-in gas hob involves more than matching the finish to your worktops. UK kitchens vary considerably in available space, gas supply and ventilation, while burner layouts can affect how easily you prepare several dishes at once.

Marketing descriptions can also make similar models appear very different. Before buying, focus on the details that affect daily cooking: cut-out dimensions, burner configuration, pan support material, ignition and flame safety.

Common gas hob buying pitfalls

1. Confusing product width with cut-out size

A hob advertised as a 60cm gas hob may be approximately 590–600mm wide, but its required worktop opening can be closer to 560mm by 480mm. A 75cm gas hob may also use a cut-out width around 560mm, depending on the model.

Never assume a replacement hob will fit simply because it has the same advertised width. Check the product’s installation diagram against your existing opening, worktop thickness and surrounding cabinetry.

2. Paying for burner numbers without checking the layout

A 5 burner gas hob is not automatically more practical than a 4 burner gas hob. The positions and power ratings matter. Closely grouped burners may make it difficult to use several large pans, while a central wok burner can be useful for high-heat cooking.

For regular family meals, look for a combination of auxiliary, semi-rapid and rapid burners. If you frequently stir-fry or use large stockpots, check whether the wok burner has sufficient output and enough surrounding clearance.

3. Treating easy-clean claims as maintenance-free

A gas on glass hob can offer a smooth, wipeable surface, but the glass, burner caps and pan supports still need appropriate care. Cast iron supports provide stability but can be heavy and may require drying thoroughly after washing. Stainless steel is practical and durable, although marks and spills may be more visible between cleans.

Also check whether supports and burner caps are removable, and follow the supplied cleaning instructions. Abrasive products or sudden temperature changes can damage some surfaces.

Core specifications to check before buying

Hob size and available workspace

  • 60cm gas hob: A common choice for smaller kitchens, flats and standard worktops. Four burners are typical, offering a sensible balance between capacity and footprint.
  • 70cm or 75cm gas hob: Gives additional room around the burners and often includes five zones. This can help when cooking several components together without moving pans constantly.
  • 90cm gas hob: Suited to larger kitchens, keen home cooks and households that regularly use several large pans. Measure the surrounding worktop carefully before ordering.

Product dimensions and recess dimensions are not interchangeable. For example, the Haier HAVG6BF4TBPB is listed at 590mm wide with a 560mm by 480mm cut-out, while its 75cm counterpart is 745mm wide but also lists a 560mm by 480mm recess. Always use the exact model specification rather than relying on category descriptions.

Burner configuration and heat control

Consider the tasks you perform most often:

  • Auxiliary burners, around 1kW, are suitable for gentle heating and smaller pans.
  • Semi-rapid burners provide a useful everyday setting for sauces, vegetables and moderate boiling.
  • Rapid burners are more suitable for larger pans and faster heating.
  • A wok burner hob with a double- or triple-ring flame can distribute higher heat across a suitably sized wok or pan.

Some models offer defined flame steps. The Haier gas-on-glass models listed here use Preci Flame with nine power settings per burner, allowing more repeatable adjustment between simmering and boiling. This does not remove the need to supervise cooking, but it can make dial selection more consistent.

Safety, ignition and installation

Look for a flame failure safety device on every burner. This system is designed to stop the gas supply if the flame is extinguished, but it is a safety backup rather than a substitute for supervision.

An automatic ignition gas hob lights through an integrated spark system, avoiding the need for matches. Check the electrical connection requirements: ignition and safety systems may require a suitable UK electrical connection, such as a fused spur or plug, according to the model.

Gas connection and conversion must be handled by a Gas Safe registered engineer in the UK. If you use bottled gas, confirm that the appliance is an LPG convertible gas hob and check whether the conversion kit is included or sold separately. The engineer should also verify ventilation, clearances and the hob-to-hood distance stated in the installation manual.

Our Top Recommendations by household profile

MATCH FOR: Budget-Conscious Starters
Haier HAVG6BF4TBPB Series 4 60cm Gas on Glass Hob with Preci Flame - Black

Haier HAVG6BF4TBPB Series 4 60cm Gas on Glass Hob with Preci Flame - Black

Why This Suits Their Persona: Its standard-width format suits many UK kitchen layouts, tenants replacing an existing built-in hob and households that mainly cook with up to four pans.

How It Avoids the Trap

The specification clearly states four burners, a 560mm by 480mm cut-out and an FFD on each burner, helping buyers check fit and safety rather than relying on appearance alone.

Key Advantage & Pros

Tempered black glass surface, cast iron pan supports, automatic ignition and nine stated flame settings per burner.

MATCH FOR: Premium Quality Seekers
Haier HAVG75TBBP 75cm Gas on Glass Hob with Preci Flame - Black

Haier HAVG75TBBP 75cm Gas on Glass Hob with Preci Flame - Black

Why This Suits Their Persona: It suits kitchen renovators wanting a contemporary black finish, five burners and more room for multi-pan family cooking.

How It Avoids the Trap

Its stated burner mix includes a 5kW double-ring wok burner, two rapid burners, a semi-rapid burner and an auxiliary burner, rather than five identical zones.

Key Advantage & Pros

745mm width, front rotary controls, dishwasher-safe cast iron supports and LPG conversion option with a separate kit.

MATCH FOR: Specific Use Case/Heavy Users
CDA HG9351SS 90cm Five Burner Gas Hob, Stainless Steel

CDA HG9351SS 90cm Five Burner Gas Hob, Stainless Steel

Why This Suits Their Persona: The 90cm format is designed for larger worktops, frequent entertaining and cooks who regularly operate several large pans at once.

How It Avoids the Trap

The listed 86cm by 48cm cut-out and 90cm product width make the installation footprint clear. Its burner arrangement also specifies one wok, two rapid, one medium and one simmer burner.

Key Advantage & Pros

Stainless steel surface, enamelled cast iron pan supports, electronic ignition, all-burner flame failure devices and an included LPG conversion kit.

Looking for More Options?

We have compiled a complete, real-time list of products that fully satisfy these strict selection criteria and UK safety regulations.

Useful accessories and cookware

A hob is only as practical as the cookware used on it. Choose flat-bottomed pans that sit securely on the supports and match the burner size. A 30cm stainless steel wok, such as the Ochama Honeycomb Non-Stick Wok, can suit stir-frying on a dedicated wok burner. For general cooking, the Swan 14 Piece Pan and Tool Set is listed as compatible with gas hobs, while the Tower Precision five-piece set is specified for all hob types.

Avoid placing oversized pans where they may extend over the controls or cause uneven heating. Allow the pan and supports to cool before cleaning.

Gas hob FAQs

Does a gas hob need a qualified installer in the UK?

Yes. Gas connection, conversion and servicing should be completed by a Gas Safe registered engineer. The installer should follow the appliance manual and check ventilation, electrical requirements and clearances.

Are gas-on-glass hobs difficult to clean?

They can be straightforward to wipe after spills, but burner caps and supports still need separate cleaning. Use the manufacturer’s recommended products and avoid impacts, abrasive pads and cold water on a hot glass surface.

Does a larger gas hob cost more to run?

Running cost depends on burner power, cooking time, household habits and your gas tariff. A 90cm model may offer more cooking space, but using multiple high-output burners can consume more gas than using one or two smaller burners. Compare the stated kW ratings and choose a size that matches how you cook.