If you’ve ever dealt with an uneven, slow, or unreliable stove, the COSMO COS-EPGR366 Gas Range feels like a dream upgrade.

This 36-inch stainless steel model from Cosmo’s Haven Collection brings professional power and precision into the home kitchen, combining six sealed burners, a 6.0-cubic-foot convection oven, and sleek LED-lit knobs for a truly modern experience.

Imagine cooking dinner without worrying about hot spots, burned sauces, or long preheating times. With powerful burners up to 18,000 BTUs and even heat circulation, this range makes everyday meals faster and more consistent — whether you’re boiling pasta or roasting a family-size turkey.

But beyond its looks and specs, the real question remains: Is the COSMO COS-EPGR366 worth it?

In this complete review, we’ll explore its design, features, real-world performance, and honest pros and cons, so you can decide confidently if this 36-inch powerhouse deserves a place in your kitchen.

Quick Summary — COSMO COS-EPGR366 36-Inch Gas Range

Who it’s for — and who it might not be for

See if the COSMO COS-EPGR366 fits your cooking style and home kitchen needs.

• Perfect for home chefs and large families who cook frequently and need extra cooktop space.
• Excellent for those upgrading from a 30-inch range and wanting a more professional, restaurant-style setup.
• Ideal for cooks who appreciate precision heat control and a spacious convection oven.
• A strong choice for kitchen remodels seeking a premium stainless centerpiece.

• Not ideal for people who prefer digital controls or self-cleaning ovens.
• Not recommended for LP-only homes unless you buy the separate propane conversion kit.

Everyday benefits that make a real difference

Practical advantages that simplify cooking and improve daily use.

• Six sealed burners deliver up to 78,000 BTU total for high-heat searing, simmering, or boiling.
• 6.0 cu ft convection oven cooks faster and more evenly than standard gas models.
• LED-illuminated knobs give instant visual feedback and modern style.
• Cool-touch handle and triple-glass door improve safety during long baking sessions.
• Removable backsplash allows freestanding or slide-in installation flexibility.
• Storage drawer offers convenient space for trays or pans, ideal for compact kitchens.
• Easy-clean black porcelain cooktop resists spills and wipes down quickly.

Real-world highlights from daily use

Key impressions and small details that users noticed during long-term use.

• Even heat distribution eliminates cold spots — baked goods cook evenly on all racks.
• Fast preheating saves time for weeknight dinners and busy households.
• Quiet convection fan and effective cooling system keep operation comfortable.
• Knobs may warm slightly during extended baking — not unsafe, but worth noting.
• Oven markings could be clearer under low lighting, especially for night cooks.
• Durable cast-iron grates hold up well over time, even with heavy cookware.
• Delivery and packaging quality vary by retailer — inspect on arrival.

Pro tip: run the oven at max heat for 30 minutes before first use to burn off factory residue and ensure clean performance from day one.

Key specs & final verdict

Width 36 in (91.4 cm)

Oven Capacity 6.0 cu ft

Burners 6 sealed (18k × 2 / 12k × 2 / 9k × 2 BTU)

Fuel Type Natural Gas / LP convertible

Oven Type Gas convection with 18,500 BTU bake / 10,000 BTU broil

Material Stainless steel with cast-iron grates

Dimensions (H × W × D) 35.6″–36.6″ × 36″ × 27.5″

Weight 235 lb (≈ 106 kg)

Certification CSA Certified (North America)

Warranty 1-Year Limited Parts & Labor

Average Rating ≈ 4.0 / 5 ⭐ (170+ reviews)

Quick verdict: The COSMO COS-EPGR366 Gas Range delivers the power, space, and quality feel of a professional model without the luxury-brand price tag.
Points of attention: manual-clean oven, no preheat chime, and knob warmth during long use.
Overall, it’s one of the best 36-inch gas ranges for value, durability, and real cooking performance in 2025 — a dependable centerpiece for any modern kitchen.

Design and Construction

When it comes to first impressions, the COSMO COS-EPGR366 Gas Range doesn’t just look professional — it feels professional.

From its heavy-duty stainless-steel construction to its mirror-finished control knobs and LED backlighting, this model stands out as one of the most elegant and solidly built options in its class.

Cosmo designed it as part of the Haven Collection, aiming to deliver the durability of commercial equipment with the style and usability that home cooks demand.

Premium Stainless Steel Build

At 36 inches wide and nearly 37 inches tall, the COSMO COS-EPGR366 commands attention in any kitchen. The full stainless-steel body resists corrosion, fingerprints, and daily wear, keeping its shine even after years of use.

Unlike thinner metal panels found on some budget ranges, this one has a reinforced industrial finish, giving the entire frame a sturdy, high-end feel that customers often compare to premium brands like Viking or Thor Kitchen.

One thing that stands out immediately is how solid everything feels. The cast-iron grates are heavy, stable, and designed to handle large pots and pans without wobbling.

Many users mention how reassuring it is to cook on a surface that doesn’t shift under pressure — you can slide a heavy Dutch oven from one burner to another without lifting it.

The black porcelain cooktop surrounding the burners not only looks refined but also helps hide stains and withstands direct heat with ease.

Professional Touches That Matter

The mirror-finished knobs aren’t just about looks — they’re designed for smooth rotation and precise control.

Each one has a blue LED ring that illuminates when the burners or oven are active, offering both a safety reminder and a modern design element that gives your kitchen a professional studio vibe, especially in low light.

One small but notable improvement over previous models is the cool-touch oven handle. Combined with triple-layer oven glass, it helps prevent burns when checking food.

Users appreciate this detail because, in real use, the oven can reach high temperatures — and having that layer of protection adds peace of mind.

The large oven window and dual interior lights are other thoughtful details. Instead of opening the door repeatedly to check your food (and losing heat each time), you can monitor progress clearly from the outside.

It’s a simple feature that helps maintain temperature stability — something home bakers will appreciate.

Storage Drawer and Installation Flexibility

Below the oven sits a built-in storage drawer, perfect for baking sheets, pans, or smaller accessories. It’s not just an afterthought; the drawer opens smoothly and feels solid, adding functional storage to your kitchen — especially useful in smaller spaces.

Another standout feature is the removable backsplash. This allows the range to fit both freestanding and slide-in installations, meaning it works just as well against a wall or built into a countertop island.

That versatility makes it a great choice for remodels or new builds where design flexibility matters.

Safety and Cooling Systems

While looks are important, safety is where this gas range truly earns its reputation. It’s equipped with a built-in cooling ventilation system that helps dissipate heat from the oven cavity, preventing overheating of the knobs and surrounding areas.

Some users did report that the knobs can warm up slightly during extended baking sessions — something to note if you often cook for long periods — but they also mentioned it’s manageable and not dangerously hot.

This model is CSA-certified, which means it meets rigorous North American standards for safety and performance.

The oven’s triple-layer glass door not only insulates heat but also provides a clear view inside without risking burns. Combined with a sturdy front handle and balanced door hinges, it delivers both safety and stability.

Real Feedback: Build Quality in Everyday Kitchens

From real-world experiences, the COSMO COS-EPGR366 Gas Range earns praise for its solid construction, premium materials, and professional appearance. Many users highlight that it “feels like a $5,000 appliance” despite costing far less.

They describe it as heavy, well-built, and easy to install — noting that the cast-iron grates and thick oven door give the impression of a true professional-grade range.

That said, a few users noted small details worth attention:

• Knobs can heat up slightly during long oven sessions — a result of the stainless-steel design retaining warmth.
• The oven temperature markings could be more visible, especially in lower lighting.
• And while most customers praised packaging and delivery, a few reported minor scuffs or issues caused by careless shipping — not by the product itself.

These aren’t deal-breakers, but they’re useful insights for anyone preparing to install a heavy appliance like this.

Verdict on Design and Build

Overall, the COSMO COS-EPGR366 36-Inch Gas Range delivers on its promise: a solid, professional-quality build designed for both beauty and performance.

Every element — from the LED knobs to the cast-iron grates and triple-layer oven glass — feels carefully engineered for durability and safety. It’s a gas range that looks like it belongs in a chef’s kitchen but fits perfectly in a family home.

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Technical Specifications

When investing in a professional-style range, it’s essential to understand not only how it looks but exactly what it offers under the hood.

The COSMO COS-EPGR366 Gas Range is a 36-inch powerhouse that blends robust gas output, large oven capacity, and thoughtful safety engineering.

Below, we’ve organized its specifications into clear tables so you can visualize each part of the appliance before making your decision.

General Overview

Feature	Details
Brand / Model	COSMO COS-EPGR366 (Haven Collection)
Product Type	36-inch Freestanding / Slide-In Gas Range
Fuel Type	Natural Gas (LP conversion kit sold separately)
Capacity	6.0 cubic feet (convection oven)
Number of Burners	6 sealed burners
Color / Finish	Stainless Steel
Installation Type	Freestanding or Slide-In
Form Factor	Professional Style, Heavy-Duty Build
Control Type	Front-mounted knobs with LED indicators
Drawer Type	Lower storage drawer for pans or trays

Cooktop Specifications

Burner Type	Quantity	BTU Output (Each)	Best For
Power Burner	2	18,000 BTU	Boiling water, searing meat, wok cooking
Rapid Burner	2	12,000 BTU	General cooking, sautéing, deep frying
Semi-Rapid Burner	2	9,000 BTU	Simmering sauces, delicate dishes
Total Combined Output	—	Up to 78,000 BTU	—
Cooktop Surface	Black Porcelain-Coated Steel	Heat-Resistant and Easy to Clean	—
Grates	Heavy-Duty Cast Iron	Continuous surface for large pots	—

What it means for you:
The combination of sealed burners allows you to control heat precisely, from a gentle simmer for sauces to a roaring flame for searing steaks.

The black porcelain top makes cleaning simple — spills don’t seep under the burners, and the cast-iron grates create a professional, solid surface to slide cookware easily across.

Oven Specifications

Oven Type	Gas Convection Oven
Capacity	6.0 cubic feet
Bake Burner	18,500 BTU
Broil Burner	10,000 BTU
Cooking Process	Fan-Assisted Convection for even heat
Number of Racks	2 Heavy-Duty Oven Racks
Rack Positions	6 adjustable levels
Interior Lighting	2 halogen oven lights
Window Type	Large triple-glazed glass
Cleaning System	Standard manual clean
Temperature Range	Up to 500°F (260°C)
Door Handle	Cool-Touch Stainless Steel
Oven Safety	Cooling ventilation system + overheat protection

What it means for you:
The 6.0 cu. ft. capacity gives enough space to roast a full turkey, bake multiple trays at once, or cook for a crowd.

Thanks to convection technology, heat circulates evenly — no more rotating trays halfway through. The triple-glass door traps heat efficiently, keeping the exterior cool and energy usage lower.

Dimensions and Weight

Specification	Measurement
Width	36 inches (91.4 cm)
Depth	27.5 inches (69.8 cm)
Height (adjustable)	35.6” – 36.6” (90.4 – 93 cm)
Oven Interior	6.0 cu. ft.
Weight	235 lbs (approx. 106.6 kg)
Shipping Dimensions	40” x 31” x 45” (approx.)

Pro tip:
Make sure to measure your kitchen space before purchasing — the adjustable height makes it flexible for built-in countertops, but you’ll need enough clearance at the back if using the backsplash.

Electrical and Gas Requirements

Type	Details
Voltage	120V / 60Hz
Amperage	9A
Plug Type	3-prong grounded plug
Gas Type (default)	Natural Gas
Propane Conversion	Kit available separately
Certification	CSA Certified (North America safety standard)

Safety insight:
The CSA certification ensures this model meets strict North American electrical and gas safety codes. Always have a licensed technician handle the gas hookup, and use plumber’s tape or compound for leak protection — several users emphasized this during installation.

Material and Durability

Component	Material
Exterior Finish	Brushed stainless steel (corrosion-resistant)
Knobs	Stainless steel with LED indicators
Cooktop	Black porcelain enamel
Grates	Cast iron (heavy-duty continuous)
Oven Door	Triple-layered tempered glass
Handle	Cool-touch stainless steel
Drawer	Steel with smooth-glide rails

Warranty and Support

Type	Coverage
Manufacturer Warranty	1-year limited (parts and labor)
Customer Support	USA-based technical team
Returns (Amazon)	30-day voluntary return policy
Extended Coverage	Optional third-party protection plans

Customer note:
While most users report excellent packaging and responsive support, a few mentioned slow replacement parts or confusing warranty claim steps. If you’re ordering through Amazon or a large retailer, keep your proof of purchase and register your product immediately after installation.

Included Accessories

Item	Included
Range Unit	✅
Cast-Iron Grates	✅
Power Cord	✅
Installation Kit	✅
User Manual	✅
Backsplash (removable)	✅
Propane Conversion Kit	❌ Sold separately

Key Takeaways from the Specs

• The COSMO COS-EPGR366 Gas Range offers a powerful 78,000 BTU cooktop and a large 6.0 cu. ft. convection oven, giving it serious cooking capabilities for family or semi-professional kitchens.
• Heavy-duty stainless steel construction ensures longevity and a high-end appearance.
• Versatile installation allows freestanding or slide-in setups — ideal for remodeling.
• Safety-focused engineering includes triple-layer oven glass, a cooling ventilation system, and CSA certification.
• A propane conversion kit is available, but sold separately — important if your home runs on LP gas.

Features and Everyday Usability

When you first step up to the COSMO COS-EPGR366 Gas Range, the immediate impression is power and control. It’s not just a showpiece for your kitchen — it’s built for serious cooking performance, where every detail supports convenience, safety, and efficiency.

Below, we’ll explore how this 36-inch gas range behaves in real kitchens, highlighting the features that make everyday use simpler, and the points of attention you’ll want to keep in mind before buying.

1. Six Sealed Burners That Truly Make a Difference

The heart of this range is its six sealed gas burners, each designed for a specific cooking task. Whether you’re preparing a full breakfast, boiling pasta, or simmering sauces, there’s a perfect burner for every job.

• Two 18,000 BTU Power Burners give you the muscle to sear steaks, stir-fry, or bring large pots of water to a boil quickly.
• Two 12,000 BTU Rapid Burners offer a great middle ground for sautéing or frying.
• Two 9,000 BTU Semi-Rapid Burners deliver precise low heat for sauces or chocolate melting.

The sealed design makes cleanup easier — spills stay on the surface instead of dripping into the burners. Users consistently mention how even the flame distribution is, with no “hot corners” or weak spots.

The grates are solid enough to slide pans across without lifting them, ideal when juggling multiple dishes at once.

One practical tip from owners: take a few minutes to “condition” the oven and burners before first use by running them at high temperature for 30 minutes. This burns off factory residue and ensures the cleanest cooking performance right from day one.

2. Convection Oven That Speeds Up Cooking

If you’ve only ever used a traditional oven, the convection fan system here will feel like a revelation. The COSMO COS-EPGR366 Gas Range uses a powerful fan to circulate air evenly, eliminating hot and cold spots.

This means cookies on the top rack bake just as perfectly as those on the bottom, and roasts develop an even, golden crust all around.

Thanks to its 6.0-cubic-foot capacity, you can cook multiple dishes at once — a casserole and a pie, or even two baking sheets side by side.

The 18,500 BTU bake burner and 10,000 BTU broil burner offer precise temperature control, while the large glass door and bright interior lights make it easy to monitor your food without opening the oven.

Some owners have pointed out that the oven doesn’t include a preheat alert tone, so if you’re used to hearing a beep when it reaches temperature, keep an eye on the display or use a simple thermometer to confirm. It’s a small detail, but one worth noting if you rely on audible cues when baking.

3. User-Friendly Controls with LED Knob Lighting

The knobs are one of the most recognizable design features of this model — stainless steel dials with bright blue LED rings that light up when the burners or oven are active.

Beyond looking impressive, this feature serves as a safety cue: at a glance, you know which burners are on, preventing accidental gas leaks or wasted energy.

The knobs themselves have a smooth, weighted feel, reflecting the appliance’s professional heritage.

However, some users have reported that during extended high-temperature cooking sessions, the knobs can become warm to the touch. This happens because of heat rising from the oven cavity — not a malfunction, but something to be aware of during long bakes.

Still, the LED feedback system is a clever addition, giving the COSMO range a modern look while improving usability — especially useful in dimly lit kitchens.

4. Smart Design for Everyday Use

Practical details often make or break a range, and this is where the COSMO COS-EPGR366 shines.

The cool-touch oven handle, combined with triple-layer glass, ensures you can check on your food safely even at maximum temperature. The oven door opens smoothly, with balanced hinges that prevent slamming or wobbling.

Inside, you’ll find two heavy-duty oven racks with six height positions, letting you customize the layout for large roasts, multiple trays, or delicate pastries. The oven’s halogen lights are bright enough that you’ll rarely need to open the door mid-cooking — and that helps maintain even heat.

The storage drawer below the oven might seem simple, but it’s a surprisingly practical feature. Many buyers mention using it to store baking sheets or cast-iron pans — keeping essentials close without cluttering cabinets.

The drawer glides smoothly and feels solid, matching the rest of the appliance’s sturdy construction.

5. Easy Maintenance and Cleaning

Despite being a high-powered range, cleaning the COSMO COS-EPGR366 doesn’t feel like a chore. The black porcelain cooktop resists stains and wipes clean with a damp cloth. Since the burners are sealed, spills don’t seep underneath — saving time and keeping your kitchen smelling fresh.

Inside the oven, you’ll need to use the standard manual cleaning method (this model doesn’t have self-cleaning), but most users note that splatters wipe off easily if handled promptly.

For tougher spots, using a soft scrub pad and a mild degreaser does the trick without damaging the enamel interior.

Another tip from experienced users: avoid harsh chemicals or steel wool on the stainless-steel surfaces. A microfiber cloth and a gentle stainless-steel cleaner will keep that premium shine intact for years.

6. Everyday Cooking Experience

In real kitchens, the COSMO COS-EPGR366 Gas Range feels like an upgrade from mid-tier appliances. Boiling water is noticeably faster, and heat control feels intuitive — you can simmer without scorching or blast high heat instantly.

One user even compared it to switching “from a Yugo to a Ferrari” — exaggerated, maybe, but it captures the feeling of power and responsiveness this range offers.

The convection oven performs just as well. Dishes cook faster and more evenly, saving both time and gas. Bakers love the consistent heat for bread, cookies, and cakes, while home chefs appreciate the strong broiler for browning and crisping.

As for installation, most customers report that setup is straightforward, especially for freestanding placement.

Just make sure to use professional gas connections and test for leaks with soap water before first use. The range’s 235-pound weight gives it stability — it won’t wobble even when moving heavy cookware across the top.

7. Points of Attention (Based on Real Feedback)

While the overall experience is highly positive, a few consistent points of attention emerged from verified users:

• Knobs may heat slightly during long oven use — not dangerous, but noticeable.
• No audible preheat alert in the oven; manual temperature checking is recommended.
• Oven temperature markings could be clearer for those with lower kitchen lighting.
• Delivery and packaging depend on the retailer — ensure professional handling to avoid cosmetic damage.
• Warranty parts can take time to ship if ordered directly through Cosmo; registering early helps.

None of these are deal-breakers, but they show where Cosmo could make small refinements in future models.

8. Everyday Value for the Home Cook

Ultimately, this gas range proves its worth not just through numbers, but in how it transforms cooking routines.

Whether you’re upgrading from a 30-inch stove or designing a new kitchen from scratch, the COSMO COS-EPGR366 Gas Range offers the space, power, and precision that most home cooks dream about — without the steep price tag of luxury brands.

It’s a range that feels built to last — heavy, confident, and efficient — designed for people who love cooking but don’t want to struggle with inconsistent heat or flimsy components.
For daily use, it strikes the rare balance between professional capability and home practicality.

What Buyers Are Saying — COSMO COS-EPGR366 Gas Range

A

Adam

March 3, 2025

This range looks incredible and performs just as well. The burners heat fast and evenly, and the convection oven bakes beautifully. The stainless finish feels premium and matches my kitchen perfectly.

M

Mary

February 10, 2025

Love the design and cooking power, but the knobs do get warm after a long bake. Other than that, it’s easy to clean and feels like a professional model at a fraction of the cost.

J

James

January 5, 2025

The oven is powerful and heats evenly, but there’s no sound alert when preheat is done — that took some getting used to. Still, the cooking results are fantastic every time.

L

Laura

April 1, 2025

I’m impressed with how sturdy this range feels. The cast-iron grates are heavy and durable, and the LED-lit knobs look modern. It gives my kitchen a true professional vibe.

T

Thomas

December 20, 2024

I converted mine to propane for my cabin — installation was simple with the conversion kit. It’s strong, stylish, and works perfectly in off-grid conditions with steady performance.

E

Emily

October 11, 2024

The oven size is huge and perfect for Thanksgiving meals. It heats evenly and the triple-glass door stays cool to the touch. Excellent value for the money.

S

Sam

November 15, 2024

It works great but the oven markings are a little hard to read in low light. Other than that, performance is solid and easy to clean up after cooking.

N

Nicole

August 9, 2024

The preheat takes a little longer than expected, but once hot, it maintains temperature well. I like the storage drawer and the overall build quality — feels premium.

R

Robert

July 18, 2024

Beautiful range with excellent heat distribution. I’m a chef and this performs close to the professional units I use at work. Highly recommend for serious home cooks.

K

Karen

May 6, 2024

Great range overall but wish it had a self-cleaning option. Manual cleaning takes some effort, though the results are worth it. The performance is consistent and reliable.

Performance in Real Use

Real-world performance is where the COSMO COS-EPGR366 Gas Range either proves its professional reputation or falls short. While technical specs look great on paper, the daily cooking experience — how it heats, bakes, and handles — is what truly matters.

After examining multiple verified user experiences, expert feedback, and extended use cases, here’s how this 36-inch gas range performs in actual kitchens.

1. Cooking Power and Consistency

The six-burner configuration is not just about quantity — it’s about balance. Each burner performs its role remarkably well, offering a wide spectrum of heat control from ultra-low simmer to intense searing.

Users consistently highlight how easy it is to cook several dishes simultaneously without feeling cramped.

The two 18,000 BTU burners are particularly impressive. They boil a large pot of water in minutes and generate enough heat for cast-iron searing or wok frying.

Unlike cheaper ranges that struggle with even flame distribution, the COSMO COS-EPGR366 maintains a steady, symmetrical flame, making it easier to control results.

At the lower end, the 9,000 BTU burners deliver smooth simmering, ideal for sauces or slow cooking. There’s minimal flickering, and the sealed burner design prevents clogging even after messy spills — a feature often praised in real kitchen use.

2. Oven Performance: Reliable, Even, and Fast

The 6.0-cubic-foot convection oven is one of the major selling points of this model, and it truly lives up to expectations.

Thanks to the convection fan, heat is distributed evenly, which dramatically reduces cooking times while preventing uneven browning — a common issue with traditional gas ovens.

In real use, the difference is clear. Roasts cook evenly on all sides, cookies bake uniformly on multiple racks, and casseroles come out bubbly and golden without the need to rotate trays mid-cycle.

Users who upgraded from smaller 30-inch ovens often describe it as a “game changer,” especially when hosting dinners or meal prepping for the week.

The 18,500 BTU bake burner provides consistent bottom heat, while the 10,000 BTU broil burner offers fast, crisp results for pizzas, gratins, and meats. The oven door seals tightly, maintaining temperature stability, which helps conserve energy.

One thing worth noting: the oven does not emit an audible preheat alert, so you’ll want to use a kitchen thermometer or timer until you get used to its cycle. Despite this, most users find it reaches temperature faster than expected — an advantage for busy kitchens.

3. Heat Retention and Energy Efficiency

With triple-glazed oven glass and a robust insulation system, the COSMO COS-EPGR366 does an excellent job retaining heat. That means faster recovery times after opening the door and more stable temperatures during long baking sessions.

The cool-touch handle and external panel insulation keep the range safe to touch, even when operating at high heat.

From an efficiency standpoint, the combination of gas power and convection airflow makes this range surprisingly economical. You can often bake at slightly lower temperatures or for shorter durations than recipes require, saving both gas and time without compromising results.

This is especially noticeable when cooking large batches — the oven maintains even heat across multiple racks, which is rare in its price range.

4. Durability Under Daily Stress

Day-to-day use is where quality materials make a difference. The stainless steel body resists dents and corrosion, while the cast-iron grates hold up well even with heavy cookware.

Owners who cook frequently — sometimes several meals a day — report that the surface remains scratch-free and the knobs maintain their polish after months of use.

However, long-term reviews point out a few realistic observations:

• Knobs can warm up slightly during long baking sessions, especially when the oven is used for over an hour at high temperature.
• Some users noted minor warping on plastic knob inserts after extended exposure to oven heat, suggesting that future upgrades to full-metal knobs would make an already excellent design even better.
• The LED lights above the knobs remain consistent over time and continue to provide a useful visual cue for burner status.

These details don’t affect cooking performance, but they’re practical notes for buyers who plan to use the oven heavily or for commercial-style cooking.

5. Baking and Broiling Tests

In multiple tests, the convection fan delivered superior results compared to standard gas ovens. Baking bread produced evenly browned crusts with no undercooked centers. Pizzas came out with crisp bases, and sheet pans of cookies showed perfect color consistency across all edges.

For broiling, the 10,000 BTU upper burner performs admirably. Steaks sear evenly without smoke buildup, and vegetables broil quickly with caramelized edges.

The fan-assisted design prevents overheating while maintaining the right crisp texture — something users frequently highlight as one of this oven’s best features.

6. Noise and Comfort

Unlike older convection systems that produce loud fan noises, the COSMO COS-EPGR366 Gas Range runs quietly. The fan emits a gentle hum rather than a whirring sound, allowing conversation or background music while cooking.

The range also cools down efficiently after shutdown — the ventilation system continues to dissipate residual heat safely, protecting internal components and preventing the knobs from overheating.

7. Safety and Reliability

Safety is an area where this model scores high marks. The cooling ventilation system and triple-layer glass door prevent external surfaces from becoming dangerously hot. The oven handle stays cool enough to grip comfortably even after long roasting sessions.

The CSA certification confirms the appliance has passed rigorous North American safety standards for gas and electrical performance.

Real users have also noted that installation is straightforward when handled by a certified technician, and the factory calibration for natural gas is precise. If you’re using propane, the conversion kit makes the adjustment quick and reliable.

8. Cleaning and Maintenance After Use

After extensive cooking sessions, cleanup is often where frustration sets in — but this is another area where the COSMO COS-EPGR366 performs well.

The sealed burners prevent spills from dripping inside, and the black porcelain cooktop wipes clean with minimal effort. The oven interior, though not self-cleaning, is easy to maintain with regular wiping and mild detergent.

Users often point out that the stainless steel exterior holds its shine beautifully when cleaned with a microfiber cloth and a gentle cleaner. Unlike lower-quality finishes, it doesn’t streak easily.

Maintaining its appearance is simple, making it suitable for open-concept kitchens where aesthetics matter.

9. Real-World Reliability

Across long-term use, this gas range earns a reputation for reliability and consistency. Owners report months (and in some cases, years) of daily cooking without performance drops.

It’s not uncommon for users to compare it favorably to premium competitors costing twice as much, emphasizing its strong heat output, even cooking, and durable build.

That said, like any premium appliance, the delivery and warranty process can impact satisfaction.

A few customers experienced poor handling during delivery, including scratched floors or dented packaging — issues tied to logistics, not the product itself. Choosing a reliable retailer or white-glove delivery service prevents these headaches.

As for support, Cosmo’s U.S.-based service team generally receives positive remarks, though some users mention slower replacement part shipping. Registering your range and keeping purchase documents ready will streamline any future warranty requests.

10. Overall Performance Verdict

In daily use, the COSMO COS-EPGR366 Gas Range feels like an appliance designed by people who actually cook. It combines raw power with thoughtful details that make life easier — from LED knobs and smooth oven hinges to precise convection airflow.

It boils faster, bakes more evenly, and looks more expensive than it is. While a few minor details (like knob warmth or lack of an oven beep) could be refined, they don’t overshadow the outstanding cooking experience this range provides.

For the home chef who values professional performance without the luxury price tag, this 36-inch range delivers exactly that — power, precision, and practicality in every use.

Pros

What makes the COSMO COS-EPGR366 stand out

• Professional-grade six-burner cooktop with up to 78,000 BTUs total output.
• Large 6.0 cu ft convection oven ensures faster, even cooking on every rack.
• Triple-glazed oven door and cool-touch handle improve safety and energy retention.
• Heavy-duty cast-iron grates create a seamless surface for sliding heavy pots.
• LED-illuminated control knobs provide visual feedback and a modern premium look.
• Dual installation options — freestanding or slide-in — increase kitchen flexibility.
• Black porcelain cooktop resists stains and wipes clean easily after cooking.
• Storage drawer adds practical space for pans or baking sheets.
• CSA-certified for North American gas and electrical safety compliance.
• Excellent value-to-performance ratio, competing with higher-priced professional ranges.

Cons

What to keep in mind before buying

• No audible preheat alert — you’ll need to monitor oven temperature manually.
• Control knobs can warm up slightly during long baking sessions at high heat.
• Oven temperature markings could be easier to read in dim lighting.
• Standard manual-clean oven — no self-cleaning function included.
• Propane conversion kit sold separately if your home runs on LP gas.
• Delivery quality varies by retailer — inspect for cosmetic damage on arrival.
• Replacement parts may take time to ship if ordered directly from manufacturer.

Conclusion and Recommendation

After thoroughly analyzing its performance, build quality, and real-world user experiences, it’s clear that the COSMO COS-EPGR366 Gas Range stands out as one of the most balanced 36-inch ranges in its price category.

It’s designed for people who want professional-level power and precision without spending the premium commanded by high-end brands like Viking, Thor, or ZLINE.

But let’s go beyond the specs — because what truly matters is how it fits into your everyday life.

Who the COSMO COS-EPGR366 Is Perfect For

This gas range is an excellent match for home cooks who take their cooking seriously, as well as for families who cook often and need both space and control. The six sealed burners allow multiple dishes at once — perfect for large meals, meal prepping, or entertaining guests.

The convection oven, with its even air distribution, makes baking consistent and fast, meaning you can roast, bake, and broil confidently even if you’re not a seasoned chef.

If you value durability and design, the stainless-steel construction and cast-iron grates offer both. They give the appliance a premium, long-lasting feel that elevates the entire kitchen.

The LED-lit knobs are not just for show — they’re practical, helping you easily identify active burners at a glance, adding safety and a modern touch.

This model is also ideal for anyone upgrading from a smaller 30-inch stove. The additional cooktop space, combined with the 6.0-cubic-foot convection oven, provides a noticeable upgrade in both functionality and cooking freedom.

Users transitioning from standard models often describe it as “transforming the way they cook.”

In short, if you want power, size, and design in a single, reliable package, the COSMO COS-EPGR366 Gas Range hits the sweet spot.

When It Might Not Be the Right Fit

While this gas range excels in most areas, it’s fair to highlight a few situations where it may not suit everyone’s needs.

If you’re looking for low-maintenance or self-cleaning features, this model’s manual-clean oven will require occasional effort. It’s not difficult to clean, but it lacks an automated cycle. For those who prefer total convenience, that’s something to keep in mind.

Another consideration is the slight knob warmth some users experience during long cooking sessions. It’s not unsafe or uncomfortable, but noticeable if you bake for hours frequently.

Likewise, if you rely on audible alerts when the oven preheats, you’ll need to adapt — the COSMO COS-EPGR366 doesn’t include a temperature-ready chime.

Finally, if you live in an area where propane is your main gas source, you’ll need to purchase the LP conversion kit separately. It’s an easy fix, but worth factoring into your budget.

What Makes It Worth Buying

Where this model truly earns its reputation is in the balance between performance and cost. You’re getting a powerful 78,000 BTU cooktop, a true convection oven, and a premium stainless design at a fraction of the price of luxury competitors.

Even after extended daily use, owners report that it retains its power, finish, and stability, showing minimal signs of wear.

Small issues like knob warmth or delivery inconsistencies are easily outweighed by the overall reliability, heat performance, and professional results it delivers.

And while a few users reported slow customer service responses, most describe easy installation, excellent packaging, and strong performance right out of the box.

If you’re upgrading your kitchen or replacing an aging range, this model gives you a genuine “professional feel” at a residential price — something rare in this market segment.

Final Verdict

The COSMO COS-EPGR366 Gas Range proves that you don’t have to spend thousands on commercial brands to get serious cooking performance.

It’s powerful, spacious, beautifully built, and intelligently designed — ideal for anyone who enjoys cooking and wants dependable performance day after day.

✅ Buy it if you want:

• A professional-grade 36-inch gas range with six sealed burners and true convection.
• A durable stainless-steel design that adds value and style to your kitchen.
• Reliable performance and even heating for all kinds of cooking.
• Excellent value compared to luxury brands.

⚠️ Think twice if you need:

• A self-cleaning oven or digital controls.
• A built-in preheat alert tone.
• Immediate warranty parts replacement.

In conclusion, for most home cooks and families, the COSMO COS-EPGR366 Gas Range offers one of the best value-to-performance ratios in the 36-inch category. It’s built to last, designed to impress, and engineered to deliver results you’ll taste in every meal.

Frequently Asked Questions — COSMO COS-EPGR366 Gas Range

1) Does the COSMO COS-EPGR366 have a preheat alert indicator?

No. The COSMO COS-EPGR366 gas range’s oven does not provide an audible or visual signal when preheating is complete. It’s recommended to use an independent oven thermometer and allow about 10–20 minutes for preheat time.

2) Why does my COSMO COS-EPGR366 smell like paint or chemicals when first used?

This is normal during initial operation. Manufacturing oils may burn off, causing a mild odor or slight smoke. Ventilate your kitchen and run the oven empty for about 45 minutes at maximum temperature before first cooking use.

3) Can the COSMO COS-EPGR366 be converted to propane (LP) gas?

Yes. Although factory-set for natural gas, the COSMO COS-EPGR366 can be converted to propane using the official LP conversion kit available from COSMO’s support page or authorized retailers.

4) Why is hot air escaping from the top of the oven door?

The range includes a built-in cooling and venting system that releases warm air from the top or back to protect electronics and maintain oven temperature. This is completely normal and safe.

5) Why do the LED lights above the knobs stay on when burners are off?

These lights are controlled by a separate panel-light switch located on the left of the control panel. Turn that switch off if you prefer the lights to remain off when not cooking.

6) What should I do if the burners spark but don’t ignite?

Make sure the gas supply valve is open and that your home’s gas pressure meets requirements. The igniter should glow and produce flame within 30–60 seconds. If it sparks but doesn’t light, contact COSMO service for inspection.

7) Is the black porcelain cooktop hard to clean?

No. The sealed black-porcelain surface prevents spills from leaking below the burners. Once cool, simply wipe with a damp cloth or mild cleaner—no special products required.

8) What is the oven’s total capacity and performance?

The COSMO COS-EPGR366 features a 6.0 cubic-foot convection oven with an 18,500 BTU bake burner and a 10,000 BTU broil burner, providing fast and even cooking for large meals or multiple trays.

9) What kind of warranty does the COSMO COS-EPGR366 include?

COSMO provides a 1-year limited parts-and-labor warranty for authorized retail purchases. Extended protection may be available through select sellers or installation providers.

10) Can this range be installed as both slide-in and freestanding?

Yes. Thanks to its removable backsplash, the COSMO COS-EPGR366 can be installed as either a freestanding or slide-in range, making it suitable for most kitchen layouts.