Gas cooktop plus electric oven under $1,500. COSMO built the dual-fuel range most home cooks couldn't afford before — here's what the tradeoffs actually look like.
Last tested: March 2026
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COSMO built something unusual here: a dual-fuel range under $1,500. Gas cooktop with electric oven is the combination serious home cooks prefer, and COSMO delivers it at a price that undercuts most competitors by $500 or more. The tradeoffs are real — the oven is smaller than similarly priced all-electric ranges, there are no smart features, and installation requires both a gas line and a 240V circuit. But if you have both utilities available and want gas cooking with electric baking precision, nothing else at this price comes close.
| Fuel Type | Dual Fuel (gas cooktop / electric oven) |
| Oven Capacity | 3.8 cu. ft. |
| Number of Burners | 5 sealed gas burners |
| Max Burner Output | 18,000 BTU (power burner) |
| Convection | True European convection (third element + fan) |
| Grates | Cast iron, continuous |
| Self-Clean | Yes |
| Smart Features | None |
| Dimensions | 29.5" W x 36.5" H x 26" D |
| Finish | Black Stainless |
| Connections Required | Natural gas or LP + 240V/40A electrical |
We ran this range through our standard testing protocol over several weeks, with a particular focus on both cooktop output and oven baking consistency — the two things that make dual-fuel worth the installation complexity.
The 18,000 BTU power burner brings a large pot of water to a rolling boil in about 7 minutes — that's genuinely fast and matches what you'd expect from a professional-style range. We cooked a batch of pasta, a large soup, and ran a sear test on a 10-inch carbon steel pan. The high-heat performance is real. The lower burners control down to a steady low simmer with no flameout issues during our testing, which is the other thing you need from a gas cooktop. Continuous cast iron grates let you slide a heavy Dutch oven from one burner to another without lifting it — a small thing that makes daily cooking noticeably easier.
The oven uses a third heating element wrapped around the convection fan, not just a fan redistributing air from a single element. The difference shows up clearly in baking. We ran a cookie test across two racks simultaneously and the results were even from front to back and top to bottom. A standard-convection oven at this price typically shows a 10 to 15 percent variance in browning between rack positions. The COSMO's true convection reduced that to a near-invisible level. Roasting performance was similarly solid.
At 3.8 cu. ft., this oven is notably smaller than the Samsung at 6.3 cu. ft. and smaller than most 30-inch all-electric ranges in this price range. A turkey up to about 20 pounds fits without difficulty. A 26-pound bird will be tight. Two standard sheet pans won't fit side by side on a single rack. If high-volume cooking or large holiday roasts are a regular part of your kitchen routine, this is a genuine constraint worth weighing against the dual-fuel advantage.
The case for dual fuel is straightforward: gas burners give you immediate, visual heat control and fast response to adjustments. An electric oven provides drier, more even heat than a gas oven and eliminates the moisture that gas combustion naturally produces. Serious home bakers prefer electric ovens for this reason. Combining both in a single range is something that typically costs $2,500 or more. COSMO brings it under $1,500. That's the core value proposition, and it's a real one.
The front right power burner outputs 18,000 BTU, which is comparable to what you'd find on professional-style ranges costing two or three times as much. For tasks that require fast, intense heat — searing, wok cooking, boiling pasta water for a large batch — this burner performs at a level that most home cooks won't hit a ceiling on.
Heavy cast iron grates span the full width of the cooktop without gaps between burners. They retain heat well, which helps maintain temperature when you add cold ingredients to a hot pan. They're more substantial than the stamped steel grates you find on lower-tier ranges, and the continuous design makes sliding cookware across burners genuinely smooth.
There's no WiFi, no app, no voice assistant integration. For home cooks who have spent any time troubleshooting connected appliance apps or dealing with software update issues, this is a straightforward benefit. You turn a knob and something happens. No Samsung account required.
The black stainless finish is genuinely attractive in a dark kitchen and holds up well to fingerprints better than standard stainless. The knobs feel solid and turn with a satisfying resistance — nothing rattles or feels undersized for the range's proportions. The oven window is smaller than we'd prefer, making it harder to check on food without opening the door.
At first glance, nothing about this range looks budget. The proportions are right, the finish is premium in appearance, and the cast iron grates read as a step above what you'd expect at this price. Up close, fit and finish details show where costs were reduced. The interior oven wall coating is thinner than premium brands, and the door seal is functional rather than impressive. These aren't deal-breakers, but they're the tangible differences between $1,300 and $2,500.
Operating the COSMO is simple. Burner knobs control gas flow directly, and the oven has clear mode controls for bake, convection bake, broil, and self-clean. There's no learning curve and no manual needed after the first cook.
Installation is the real complexity. You need both a gas line with a proper shutoff valve within 6 feet of the range location and a 240V/40-amp dedicated electrical circuit. If your kitchen has both already from a previous dual-fuel range, installation is straightforward. If you're upgrading from an all-electric range, you'll need a plumber and possibly an electrician — budget $400 to $800 for dual-utility installation. Factor that into your total cost comparison against an all-electric range.
If dual-fuel is what you want, COSMO is essentially the only realistic option under $1,500. The next closest competitor with a comparable configuration starts around $2,200. The tradeoffs are a smaller oven, no smart features, and mixed customer service reviews for COSMO as a brand. If you can accept those limitations, the value is genuine and the cooking performance justifies the price.
If dual fuel isn't a hard requirement, the Samsung NE63A6511SS at $899 offers a larger oven, smart features, and a lower installation cost. Our full comparison of the Samsung vs. COSMO lays out the decision in detail.
This range is for home cooks who know they want gas burners and electric oven performance, and who have both utilities available at their range location. If you're someone who sears proteins on the stovetop, bakes regularly, and has been priced out of dual-fuel ranges before, the COSMO finally makes that configuration accessible. It's also a good fit for anyone who finds connected appliances more trouble than they're worth and prefers straightforward, manual controls.
Renters or anyone in a home without both gas and 240V available at the range location should look elsewhere — the dual installation cost will push your total spend well past the all-electric competition. If you regularly cook large meals and need to fit a 26-pound turkey or two full sheet pans simultaneously, the 3.8 cu. ft. oven will frustrate you. And if you want smart home integration, the Samsung NE63A6511SS is the better choice at a lower price.
The COSMO COS-ERD304K-BK makes the dual-fuel configuration genuinely accessible for the first time at this price point. Gas cooktop performance is legitimately strong, true European convection bakes evenly, and the cast iron grates make daily stovetop cooking satisfying. The oven being nearly 40 percent smaller than comparably priced all-electric ranges is a real limitation that will matter for some buyers. Go in knowing that, and this is an excellent range for its price.
Also consider: Samsung NE63A6511SS review or compare both ranges side by side
The COSMO ERD304K-BK requires both a natural gas or LP gas line connection for the cooktop and a 240V/40-amp dedicated electrical circuit for the oven. This dual-connection requirement means installation costs are higher than a standard electric range. Budget $300 to $600 for professional installation if both utilities are not already present at the range location.
True European convection adds a dedicated heating element wrapped around the convection fan, so the heat circulating through the oven cavity is generated right at the fan rather than borrowed from the main bake element. The result is more even heat distribution, particularly noticeable in multi-rack baking. Standard fan convection just moves air from an existing element around the cavity, which is better than no convection but not as consistent.
A turkey up to about 20 pounds will fit, but a 26-pound bird will be tight. The 3.8 cu. ft. oven is on the smaller side for a 30-inch range. If you regularly cook large whole birds or need to run multiple sheet pans simultaneously, the smaller cavity is a real limitation. The Samsung NE63A6511SS at 6.3 cu. ft. is a better choice for high-volume cooking.
No. The COSMO ERD304K-BK has no WiFi connectivity or app integration. It's a fully manual range with physical controls for every function. For many cooks, especially those who don't want the overhead of app setup and account management, this is a feature rather than a limitation.
Yes, the COSMO ERD304K-BK is LP convertible with the included conversion kit. The conversion requires adjusting the burner orifices and setting the low-flame adjustment screws. COSMO recommends professional installation for the gas conversion.