COSMO 640STX-E 24 in Gas Cooktop with 4 Sealed Burners - Compact Power

In this review the COSMO 640STX-E 24 in gas cooktop is presented as a compact, performance-focused option for kitchens where space is limited but cooking versatility is still required. The single biggest reason to consider this cooktop is the combination of four sealed burners, including a powerful 16,000 BTU burner, in a slim drop-in footprint that fits smaller counters while offering professional-style heat control. The review notes the stainless steel surface and cast iron grates as durable touches that make it suitable for frequent home cooks who need reliable flame range and easy cleanup.

Key Features

• Four sealed burners: Offers a range from a 16,000 BTU high-power burner to lower 5,000 BTU output for precise simmering and varied cooking tasks.
• Compact drop-in design: The 24 in profile and shallow 3.36 in height let this cooktop fit into smaller counters without sacrificing the ability to cook multiple dishes at once.
• 304-grade stainless steel surface: Provides a corrosion-resistant, easy-to-wipe finish that keeps the unit looking clean after regular use.
• Heavy-duty cast iron grates: Flat cooking grates give stable support for pots and distribute heat for confident searing and boiling.
• Electronic ignition safety: Built-in electronic ignition improves safety and reliable startup compared with manual lighting.
• Metal control knobs: Front metal-constructed knobs are built to withstand frequent adjustments and give a consistent control feel.

Who It's For

The COSMO 640STX-E is best for apartment dwellers, small households, or secondary kitchens that need a true gas cooking experience without a full-range footprint. It suits cooks who value a strong main burner for rapid boiling and searing plus lower burners for sauces and simmering.

Those who should look elsewhere include buyers requiring built-in propane conversion out of the box (a conversion kit is sold separately) or purchasers seeking a larger cooktop surface with more than four burners. If an exact match for long-term heavy commercial use is needed, a commercial-grade range may be more appropriate.

Pros & Cons

Pros

• Powerful 16,000 BTU burner alongside two mid-level and one low simmer burner for flexible cooking.
• Stainless steel construction and cast iron grates make cleaning straightforward and enhance durability.
• Electronic ignition and metal knobs improve safety and user experience during frequent adjustments.

Cons

• Some customers report mixed experiences with burner flame stability and long-term durability on a minority of units, so occasional service checks may be needed.
• Liquid propane conversion requires a separately purchased kit, adding cost for LP setups.

Specifications

Our Verdict

The COSMO 640STX-E is a sensible buy for small kitchens and cooks who want a capable gas cooktop with varied burner power and a durable stainless surface at a reasonable price. It delivers strong value when compact size, reliable ignition, and heavy-duty grates matter most, though buyers should budget for a propane conversion kit if needed and be aware of isolated reports of burner issues.

Frequently Asked Questions

Does this cooktop support propane?
Yes, it can be converted to liquid propane but the conversion kit is sold separately and must be installed per instructions.

How large is the unit?
The cooktop measures about 22.81 in wide by 20 in deep and is 3.36 in high for a low-profile drop-in installation.

Is the surface easy to clean?
The 304-grade stainless steel surface and removable cast iron grates make routine cleaning straightforward with a damp cloth and mild cleaner.