Cooktop - Built-In Kitchen Cooking Surface Basics Guide

A cooktop is a built-in kitchen appliance with surface burners or heating elements installed into the countertop without a full oven below.

Cooktop diagram — labeled parts, dimensions, and installation context

What It Is

A cooktop provides a dedicated surface for cooking while allowing the oven to be located elsewhere or omitted entirely. It is common in modern kitchens, islands, and layouts where separate wall ovens are preferred.

Cooktops can be gas, electric resistance, or induction. The installation details matter because they involve countertop cutouts, clearances, ventilation considerations, and either gas piping or dedicated electrical circuits.

Types

Gas cooktops use open or sealed burners. Electric smooth-top models use radiant heat under glass or ceramic surfaces. Induction cooktops use electromagnetic fields to heat compatible cookware directly.

Where It Is Used

Cooktops are used in residential kitchens, kitchen islands, wet bars, accessory dwelling units, and remodels where homeowners want more flexible appliance layouts. They are usually mounted in base cabinets below the counter surface.

How to Identify One

A cooktop is the flat cooking appliance set into the countertop with burners or heating zones on top and controls on the unit surface or front edge. Unlike a freestanding range, it does not include a full-height oven body.

Replacement

Replacement is needed when burners fail, the glass top cracks, ignition problems persist, or the appliance no longer fits the kitchen layout. Because replacement may involve gas, electrical, and countertop fit issues, measurements and utility compatibility matter.

Cooktop — FAQ

What is the difference between a cooktop and a range?

A cooktop only provides the upper cooking surface. A range combines a cooktop and oven in one freestanding appliance.

Can I replace a gas cooktop with an induction cooktop?

Sometimes, but it depends on having the right electrical service and countertop opening. Switching fuel types usually means changes beyond the appliance itself.

Why is my glass cooktop cracked?

Common causes include impact, thermal shock, cookware damage, or stress from poor installation support. A cracked glass surface is usually a replacement or major repair issue.

Do cooktops need a dedicated circuit or gas connection?

Yes. Electric and induction units need properly sized electrical circuits, while gas cooktops need a gas supply and ignition power. The exact requirements depend on the model.