Questions about choosing and placing kitchen appliances

Appliances are the one part of a kitchen remodel that arrives in a box with its own rules. Each one has an installation sheet, a required opening, a clearance, an electrical or gas connection and a ventilation need, and the cabinets around it have to be built to those numbers. The questions below come up on nearly every kitchen job in Scottsdale, AZ, and the answers decide where things go before a single cabinet is ordered.

Should the oven be a range or a wall oven with a separate cooktop?

A freestanding or slide-in range puts the oven and the burners in one unit, takes up one section of the wall and needs one set of connections. A wall oven and a separate cooktop split the two apart, which frees the cooktop to sit on an island and lets the oven rise to a comfortable height. The split uses more floor and cabinet space, because the wall oven needs a tall cabinet and the cooktop needs a base cabinet with its own depth and clearance below.

The choice is not just about looks. A wall oven needs a dedicated circuit and a cabinet that supports its weight, with a ventilation gap that the manufacturer specifies. A cooktop needs its own circuit or gas line, a hood above it and a clear area on either side for landing hot pans. A range is simpler, and in a small kitchen it is often the better answer. In a large open kitchen, which is common across Scottsdale, the split layout earns its space.

Where should the microwave go?

Over the range is the traditional spot, and it saves counter space, but it puts hot steam and a heavy door at head height above the burners. A drawer-style microwave built into an island or a base cabinet sits at a comfortable height for everyone, and it clears the wall for a proper ducted hood. A shelf in a pantry or a tall cabinet keeps it off the counter entirely.

Whatever the location, the microwave needs its own circuit under the adopted code, and the cabinet around it needs ventilation as specified in the guide. Built-in trim kits close the gap between the unit and the cabinet opening, and they are chosen by model number, so the model has to be known before the cabinet maker draws the opening.

How much clearance does a cooktop need?

Clearance has two parts: what is above and what is beside. Above the cooktop, the manufacturer of the hood and the cooktop both state a minimum and often a maximum height. Too close is a fire concern, and too far is a capture problem, because the hood stops pulling the plume. Beside the cooktop, combustible cabinets need a minimum gap or a heat shield, and landing space for a pot is a practical need that has nothing to do with code.

A table of the common clearances worth confirming against the installation sheet:

ItemWhat to confirm
Cooktop to hoodMinimum and maximum height from the cooking surface
Cooktop to side wall or cabinetGap to combustible material
Wall oven cabinetOpening size, ventilation gap and weight support
Microwave drawerCut-out width, depth and trim kit
Warming drawerCircuit, cut-out and clearance beneath
Beverage refrigeratorFront or rear venting, door swing

Those are the numbers an inspector and an installer will ask about, and they live on the sheet that comes in the box or on the manufacturer's website.

Do built-in appliances need ventilation behind them?

Yes. An oven is insulated, but it still sheds heat through its top and sides, and the cabinet around it is built with a gap for that heat to escape. Wall oven cabinets typically have a vent opening at the top or the back. A refrigerator has grilles at the base or the top, and a beverage cooler has either front venting for built-in use or rear venting for freestanding use. Putting a freestanding cooler into a tight cabinet is a common mistake, and it works until the first hot afternoon in the Phoenix metropolitan area, when the compressor runs without stopping.

Heat is more than a comfort question in the Sonoran Desert. Cabinets near an oven see higher temperatures than they would elsewhere, and a hot kitchen makes every appliance work harder. Leaving the specified gaps and keeping them clear protects the whole room.

What about gas versus electric?

Gas gives instant visible heat and works during a power cut. Electric radiant and induction cooktops are smoother to clean, and induction is far more responsive than radiant, with very little waste heat released into the room. Ovens are a separate choice: many cooks pair a gas cooktop with an electric oven, a combination that needs both a gas line and a heavy circuit. Houses around Maricopa County built before the 1980s often have gas to the kitchen, and the gas stays in the plan until someone decides to cap it.

The deciding facts are what the house already has, what the panel can carry and what the cook prefers. A gas line that is already there is worth keeping, and a panel with no spare capacity is a strong reason to think twice about adding another large electric load.

When should appliances be ordered?

Before the cabinets. The cabinet maker needs exact dimensions, and those come from the appliance specification, not from a showroom display. Lead times vary by brand and season, and some models are back ordered for weeks. The safe approach is to choose the appliances early, order them, and have them delivered to a dry indoor space before the install date. Unboxing them on the day they are needed is how a kitchen ends up with a missing refrigerator for a month.

When a model is discontinued after the cabinets are built, the replacement may differ by a fraction of an inch, and a fraction of an inch is enough to leave a gap or a door that will not close. Keep the original specification sheets in a folder with the plans.

Delivery access is part of the same plan. A wide refrigerator or a tall wall oven has to get through the front door, down the hall and past the island, and a measuring tape run along that path before ordering saves a hard afternoon. Houses near Camelback Mountain with narrow side gates or stepped entries are the usual trouble spots, and the delivery crew will not take a unit apart to fit it through.

Who connects the appliances?

The licensed trades connect them. An electrician makes the hardwired and plug connections and checks them against the nameplate, a plumber connects the water line and drain for the dishwasher and any water line for an ice maker, and a gas fitter handles any gas appliance. The permit and final inspection cover those connections, and the inspector expects to see the appliances set and running. A dishwasher with a loose drain, or an oven on a circuit that is a size too small, fails there.

Final note

Appliance choices belong at the start of a kitchen plan, because every cabinet and every connection follows from them. Pick them, read the sheets, and then draw the room around them.