Built-in hob installation and care: burners, ignition and a clean glass top

A built-in hob sits flush in the countertop, which gives the kitchen a clean, continuous look and makes the surface easier to wipe down. Because it is fixed into the counter and connected to gas or power, a built-in hob depends on getting the installation right, and on a few simple habits afterwards to keep every burner lighting cleanly.

Understanding your built-in hob

Built-in gas hobs have burners set into a toughened glass or steel top, with knobs on the front or top surface. Most use auto-ignition, which creates a spark when you turn and press the knob. Underneath the counter sit the gas connection and, for auto-ignition, a power connection.

Because the hob is cut into the counter, the opening has to match the model's cut-out size, and there must be room below for the gas pipe and ventilation.

Common uses and benefits

• A flush, modern countertop that is easy to keep clean
• Multiple burner sizes for different vessels and cooking styles
• Auto-ignition that removes the need for a separate lighter
• Works well under a matching chimney for a coordinated cooking zone

Features and things to consider

• Cut-out size: the counter opening must match the dimensions in the hob's manual. Cutting granite or quartz is not easily undone, so measure carefully.
• Gas connection: the hose or pipe should be suitable for the gas type, not stretched or kinked, and easy to inspect.
• Power point: auto-ignition hobs need a power point within reach below the counter.
• Clearance: leave the clearances recommended by the manufacturer from walls, cabinets and the chimney above.
• Leak check: every new connection should be checked for leaks before the hob is used.

Common built-in hob problems

Burner will not light

Often a damp or dirty ignition electrode, a misaligned burner cap or blocked burner holes.

Yellow or uneven flame

Blocked burner ports or a burner cap that is not seated properly; a flame that stays yellow should be checked.

Clicking that does not stop

Moisture around the igniter or a fault in the ignition switch.

Knob stiff or loose

Grease build-up around the spindle or a worn knob.

Cleaning and care tips

• Let the hob cool completely before cleaning.
• Lift off pan supports and burner caps and wash them in warm soapy water. Dry them fully before refitting.
• Clear blocked burner holes gently with a soft brush or a pin; never enlarge the holes.
• Wipe the glass top with a soft cloth and a mild cleaner made for glass. Avoid steel wool and harsh scrubbers that can scratch.
• Wipe up spills as soon as the surface is safe to touch, before they bake on.
• Make sure burner caps sit flat and centred so the flame spreads evenly.

When to call a professional

• You smell gas. Turn off the gas supply, open windows, avoid switches and flames, and call your gas supplier's emergency line first.
• A burner still will not light after cleaning and drying
• The glass top is cracked or chipped
• You are installing a new hob or changing the counter cut-out
• The ignition keeps clicking after the knob is released