CosmoGrill Platinum 6 Burner Review UK 2026
Quick verdict
Score: 8.5/10
Best for: Regular garden barbecuing for family and guests
Not for: Anyone short on storage space, or wanting charcoal flavour from a pure gas model
Bottom line: A practical gas barbecue (4 burners + 2 side burners) for outdoor cooking.
The CosmoGrill Platinum 6 Burner's Platinum 6 Burner is designed for a built-in-style gas BBQ with multiple cooking zones, combining four main burners with two side burners, plus a built-in lid thermometer. The main advantage is flexible zoning, with the main burners creating different heat levels while the side burners support smaller tasks like sauces and sides. For buyers who want temperature checking during cooking, it is a suitable option.
Key specifications
| Area | Included burners Purpose |
|---|---|
| Main | 4 burners Primary grilling |
| Side | 2 side burners Extra cooking |
| Lid | Temperature gauge Cooking monitoring |
Pros
- 4 burners + 2 side burners
- Built-in
- Lid thermometer
- Instant heat and quick cleanup versus charcoal
Cons
- Gas bottle, regulator and hose are usually sold separately
- Needs covering or storing over winter to prevent rust
- Check the assembled size suits your space
Style and Setting
Built-in gas BBQs such as this gas barbecue are made to sit as a permanent feature within an outdoor cooking area, rather than as a portable unit. They suit outdoor kitchens with built-in counters or stone surrounds, where the lid and controls stay within easy reach. The stainless steel-look finish is designed for a clean, modern appearance, although it can show fingerprints and weathering over time. A built-in temperature gauge is included to help monitor heat at a glance, but exact performance depends on the installation and the gas supply setup.
Size and Seating
Space planning matters for the CosmoGrill because it is a built-in gas BBQ. It needs a permanent cut-out or housing in the outdoor area rather than being used as a standalone unit on the patio. With four main burners and two side burners, it suits families or frequent entertaining where multiple pots and pans can be managed at once. When positioning, leave workable clearance around the sides for access to the controls and prep space. Seating distance also matters, as guests should be far enough from the lid area for safe movement.
Materials and Build
Stainless steel construction is marketed as a key feature of the gas barbecue. In practical terms, stainless steel surfaces are generally more resistant to rust than bare metal and typically cope better with day-to-day outdoor exposure to rain and humidity, provided the grill is wiped down after cooking. The unit is designed as a built-in barbecue grill, so it sits within a cutout or enclosure. Stainless steel can still show fingerprints and staining, so regular cleaning is needed to keep the exterior finish looking even.
Comfort and Features
With the CosmoGrill, comfort and day-to-day usability focus on the control layout and the cooking aids built into the grill. The model includes four main gas burners and two side burners, allowing grilling and basic preparation to happen at the same time. A built-in lid temperature gauge is included to help monitor heat without lifting the lid repeatedly, which can affect cooking time. An integrated infrared searer and back burner provide additional cooking options. Overall, the feature set is designed to support straightforward routine use, while some details remain unclear.
Who Is This For?
Who is this grill really suited for, and who may find it more difficult to use day to day? This built-in The gas barbecue is a better match for households that host regular garden parties or family meals, because it offers four main burners plus two side burners for extra prep space. It also suits buyers who want simpler monitoring, as a built-in temperature gauge helps track cooking progress without lifting the lid often. Fitting it can be less straightforward for small patios or anyone with limited installation flexibility, as built-in gas grills require planning. Busy beginners may also find the multiple controls and cooking zones less intuitive at first.
Where to Buy in the UK
Where to buy the CosmoGrill Platinum 6 Burner in the UK depends on whether the priority is home delivery or checking the built-in fit in person. A buyer can look at major UK garden and BBQ retailers such as Amazon UK, John Lewis, Currys, AO, Argos, Plus B&Q, Homebase, Wickes, The Range and Wayfair, then compare listings that state it is a built-in unit with six gas burners, a lid thermometer and an infrared searer. For online orders, the key checks are the stated dimensions, the gas type (LPG/propane) and whether any delivery or installation guidance is provided. For in-person inspection, a showroom or retailer display is the only way to verify that the built-in installation matches the available space. Before purchase, confirm the returns terms and that spare parts are available.
Frequently Asked Questions
Is the CosmoGrill worth it?
For regular garden barbecuing for family and guests, the gas barbecue (a 4 burners + 2 side burners gas BBQ) does the job. Whether it suits you depends on how many you cook for, your space and how often you grill. Check the current Amazon UK price, as barbecues are heavily discounted outside the summer peak.
How many burners does the CosmoGrill have?
The gas barbecue is a 4 burners + 2 side burners model. As a rough guide, 2 burners suit couples and small families, 3 to 4 burners suit most households, and 5 or more suit regular entertaining. More burners also mean better zone control - you can run one side hot for searing and leave another cooler for indirect cooking, which is how you avoid burnt outsides and raw middles.
What fuel does this gas barbecue use?
The CosmoGrill runs on gas (LPG). You'll need a gas bottle - typically patio gas or propane - plus the correct regulator and hose, and these are usually sold separately, so factor that into the cost. Gas gives instant heat, precise control and quick cleanup compared with charcoal.
Is the CosmoGrill Platinum 6 Burner portable?
The gas barbecue is a built-in model. It's built to live in the garden rather than travel, usually with wheels so you can reposition it on the patio. Check the footprint against your space, and plan to cover or store it over winter to prevent rust.
What features does this gas barbecue have?
The CosmoGrill offers lid thermometer. A lid thermometer lets you cook with the lid down, which is essential for anything thicker than a burger. Match the features to how you actually cook.
How do you look after the gas barbecue?
Brush the grates while still warm after each cook, and empty the grease tray regularly - a build-up is the most common cause of flare-ups. Give the burners an occasional check for blockages. Crucially, use a cover and store it somewhere dry over winter, as rust is what kills most gas barbecues long before the burners fail. Always turn the gas off at the bottle after use.