The KoolMore KM-WO30D-SS is a high-wattage electric convection double wall oven with 10.0 cu ft of combined capacity and an 8,500W draw, priced at $2,204 with a 4.2-star average across 30 reviews, a credible showing for a lesser-known brand at this capacity.
Budget-conscious buyers who want a large-capacity double wall oven with serious heating power and can accept a narrower 23.5-inch footprint. It suits kitchens with non-standard cutout widths or renovation projects with flexible cabinetry.
Skip if
Anyone remodeling around an existing 30-inch cutout should skip this unit, at 23.5 inches wide it will not fill a standard 30-inch opening without a custom surround. Those who prioritize brand longevity or established service networks should also look at Frigidaire or Electrolux alternatives.
Capacity 10.0 cu ft
Fuel type Electric
Heating Convection
Wattage 8500 W
Installation Built-In
Width 23.5 in
Priced 32% below the category median ($3,239.99 across 44 tracked models)
Wattage of 8500 W - higher than 64% of the 44 models we track
Width of 23.5 in - narrower than 100% of the 44 models we track
Our scorecard
4.1/5overall
Owner rating4.2/5
4.2 average across 30 owner ratings
Value for money3.8/5
$220 per cubic foot, below the category median
Popularity4.9/5
30 owner reviews, more than most models here
Storage space4.5/5
10.0 cu ft, roomy for this category
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other kitchen ranges, cooktops, wall ovens, range hoods and microwaves we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
The KM-WO30D-SS stands out mainly for two numbers: 10.0 cu ft of combined electric convection capacity and 8,500W of rated power, paired with a stainless steel finish and a $2,204 price. For a brand without decades of track record, that wattage spec is notable, it matches the output of some far more expensive competitors.
The 23.5-inch width is the defining constraint here. Built-in installation in a 23.5-inch cabinet cutout is less common in American kitchens, where 27-inch and 30-inch openings dominate. The unit dimensions are 23.5 x 23.5 x 51.2 in and it weighs 230 lb, placing it in the mid-range for installation effort.
Thirty reviews averaging 4.2 stars gives KoolMore more credibility here than several competitors at similar prices. That said, 30 reviews is still a modest pool for a major appliance purchase, and prospective buyers should research the warranty and service pathway before committing.
Pros
8,500W rated power matches premium-tier competitors in heating output
10.0 cu ft combined capacity handles large cooking loads across both cavities
4.2-star average from 30 reviews provides more buyer validation than many rivals in this price band
Stainless steel finish in silver suits most kitchen aesthetics
Built-in installation type is straightforward for compatible cutouts
Cons
23.5-inch width is narrower than the standard 30-inch cutout found in most American kitchens
KoolMore has a shorter service history than established brands like Frigidaire or GE
30 reviews is still a limited dataset for a $2,200 purchase
Specifications
Capacity
10.0 cu ft
Fuel type
Electric
Heating
Convection
Wattage
8500 W
Installation
Built-In
Width
23.5 in
Finish
Stainless Steel
Color
Silver
Dimensions
23.5 X 23.5 X 51.2 In
Weight
230.0 lb
Voltage
240 Volts
Performance notes
At 8,500W on a 240V circuit the KM-WO30D-SS has the electrical draw to preheat quickly and sustain high temperatures across convection cycles in both cavities. The 10.0 cu ft combined space means both ovens offer meaningful usable volume. The 23.5-inch width means this is a purpose-fit unit, it will work well in a matching cutout but requires planning if you are replacing a 27- or 30-inch oven.
What buyers say
Thirty buyers giving a 4.2-star average is a positive signal for a brand that does not have Frigidaire or GE recognition. It suggests that buyers who fit the right cutout size are generally satisfied with the performance relative to the price. The narrower width appears to be a known limitation rather than a surprise.
Will the KoolMore KM-WO30D-SS fit a standard 30-inch wall oven cutout?
No. This model is 23.5 inches wide and is designed for a 23.5-inch cutout. Fitting it in a standard 30-inch opening would leave visible gaps on each side and require a custom filler or surround. Measure your existing opening before purchasing.
What is the wattage of this double wall oven?
The KM-WO30D-SS is rated at 8,500W and requires a 240V dedicated circuit. That output is competitive with premium brands and supports rapid preheating and steady convection performance across both cavities.
How reliable is KoolMore as a brand for a major appliance?
KoolMore is a smaller, newer brand compared to Frigidaire or GE. The 4.2-star average from 30 buyers is a reasonable early vote of confidence, but a shorter track record means less certainty about long-term parts availability and service coverage. Verify warranty terms and service options in your area before purchasing.
We use necessary cookies to keep the site working. With your permission, we also use functional, analytics, and marketing cookies. Read our Cookie Policy.
