Kostch KOS-24DWH06H Dishwasher Review

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Last updated October 31, 2026

The Kostch KOS-24DWH06H is a good buy for a kitchen that wants a full-size, quiet, top-control built-in with a colored enamel door and a long warranty, and whose owner is comfortable with a newer name on the front. It brings 15 place settings, a stainless tub, three racks, eight programs, automatic door-open drying and 3 years of parts-and-labor coverage.

Look elsewhere if you want a brand with a deep review history, or if you need features this machine does not list, such as app control or a heated forced-air dry. The third rack, stainless interior, door-release finish and 3-year coverage are what justify its place on the shelf.

Where the KOS-24DWH06H earns its keep

The machine is built around a full-size load. It holds 15 place settings in a stainless steel tub with a stainless inner door, and the three racks include an adjustable upper rack, fold-down tines, stemware holders and a removable cutlery basket. A tall stockpot and a row of wine glasses can share a cycle without one crowding out the other.

Quiet enough for an open kitchen

The noise level is 45 dB, which sits in the very-quiet band for a full-size built-in. In a room where the kitchen opens onto the living area, that is a dishwasher you can run during dinner: conversation carries and the TV stays at its normal volume.

Eight programs and three spray arms

The cycle list covers Auto, Heavy, Eco, Normal, Express, Rinse, Delicate and Lightning. Auto reads the load and picks the settings, Heavy takes baked-on pans, Eco is the long low-energy run, Express is for a quick turnaround, Rinse holds a partial load until you fill it, Delicate handles glassware and thin plastics, and Lightning is the fast cycle. Three spray arms, top, upper and lower, reach the whole tub rather than one zone.

Options that change how you load it

  • Delay Start pushes the cycle to a later hour, so it can run while you are out or asleep.
  • Hi-Temp raises the wash temperature for greasy or soiled loads.
  • Half Load runs a smaller wash when the racks are not full.
  • Open Dry releases the door at the end of the cycle so moist air escapes instead of settling back on the dishes.

How it dries

Drying is condensation plus fan assistance, finished by the door release. Open Dry lets moist air escape instead of settling back on the dishes, so the load comes out drier.

Energy and water use

The machine is ENERGY STAR, UL and DOE certified, with 3.2 gallons per cycle and 220 kWh per year. The water figure is low for a 15-setting machine, which matters if you run it most days.

A door you can match to the room

The enamel-coated door comes in white on this listing, with other colors in the line. In a kitchen that is not built around stainless, that is a real reason to pick this machine over a steel-front box.

Three years of coverage

The warranty runs 3 years on parts and labor, longer than the one-year coverage common in this class. On a newer name, that longer window is the assurance you get in place of a long track record.

Its limits

Delay Start is the full extent of the automation. No app, Wi-Fi or remote control is listed, so scheduling a cycle is done at the panel and nowhere else.

Drying relies on condensation, fan assistance and the door-release finish rather than a heated forced-air element.

The controls sit on the top edge of the door.

The box holds the cutlery basket, the drain hose and the user manual. A power cord and fill hose are not in the included list, so plan for both at install.

There are no customer reviews yet, which means no owner-reported track record to lean on. The warranty and the specifications are the assurance this machine offers.

With the door open 90 degrees the machine reaches 47.25 inches from the cabinet face.

The product in this review

⭐ The product in this review Built-in dishwasher front view with top digital control panel and a long horizontal handle

Kostch KOS-24DWH06H dishwasher

$999.00 as of 10/31 ★ 5.0 (3 ratings)
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What the KOS-24DWH06H numbers tell you

Size and fitFigure
Width23.875 in
Height33.875 in, adjustable to 35.5 in
Depth of body22.6 in
Cut-out24 in wide, 23 in deep, 35 in high
Depth with door open 90 degrees47.25 in
Weight82.7 lb
CapacityFigure
Place settings15
Racks3, upper rack adjustable
TubStainless steel
PerformanceFigure
Noise level45 dB
Wash programs8
Spray arms3 (top, upper, lower)
OptionsDelay Start, Hi-Temp, Half Load, Open Dry
Energy and waterFigure
Energy use220 kWh per year
Water use3.2 gallons per cycle
CertificationsENERGY STAR, UL, DOE
Electrical and plumbingFigure
Voltage120 V
Drain hose59 in
Power cord and fill hoseNot included
WarrantyFigure
Parts and labor3 years

The cut-out is a standard 24-inch opening, and the height adjusts to slide under a 35-inch counter. The door swing is the number people forget: 47.25 inches of clear floor in front of the machine, measured along the walkway, decides whether the door can drop without hitting a chair, a drawer bank or an island.

The Kostch KOS-24DWH06H has a strong specification sheet for a full-size top-control built-in: 15 place settings, 45 dB, a third rack, door-release drying, low water use and a 3-year warranty. It suits a buyer who wants those features and a colored enamel door more than a long brand history.

Before delivery, measure the cut-out and allow for the 47.25-inch door swing.

Frequently asked questions

Most of the satisfaction with a built-in dishwasher comes down to the cut-out, the door swing and what ships in the box.

Will the Kostch KOS-24DWH06H fit in a standard 24-inch cabinet opening?

The body is 23.875 inches wide, so a cut-out 24 inches wide, 23 inches deep and 35 inches high accepts it. Height begins at 33.875 inches and can be raised to 35.5 inches, so the adjustable feet take up the slack under a 35-inch counter.

Does the Kostch 24-in dishwasher come in colors other than white?

White is the finish shown for the KOS-24DWH06H, and the same enamel-coated door is also offered in black and red within the Kostch line. Every version carries the smooth, glossy, scratch-resistant surface and the bar handle.

What do the side lights and floor light on the Kostch KOS-24DWH06H do?

Side lights and a floor light brighten the tub and the floor area in front of the machine, which helps when you load or unload in a dim kitchen. They are listed among this model's features next to the touch controls and digital display.

How far does the Kostch KOS-24DWH06H project once its door is shut?

With the door shut, you get 25.125 inches of projection with the bar handle and 22.625 inches without it. The body behind the door measures 22.6 inches deep.