CosmoGrill 4+1 Deluxe Grill Review UK 2026
Quick verdict
Score: 6.6/10
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 + 1 side burner) for outdoor cooking.
The CosmoGrill 4's 4+1 Deluxe Grill uses a gas cooking layout with four burners plus a separate side ring burner, and it includes a protective cover as listed in the product title. This gas barbecue suits cooks who want more direct heat zones than a basic three-burner model, with the side ring supporting faster finishing tasks. The "4+1 Deluxe" layout is aimed at buyers who want straightforward multi-burner control in one unit, while features beyond the cover and burners are listed as not stated. Overall, it is a practical Cosmogrill gas BBQ option.
Key specifications
| Specification | What it means |
|---|---|
| Four main burners | Primary grilling zones |
| Side ring burner | Extra space for sides |
| Gas type | Gas-powered cooking |
| Deluxe Grill | "Deluxe" variant naming |
Pros
- 4 burners + 1 side burner
- Side burner
- 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
For outdoor cooking spaces that need extra versatility, the CosmoGrill is set up to handle main grilling and side cooking at the same time, thanks to four main burners and a separate side ring burner. Its black, covered gas barbecue look suits many UK garden setups, and the cover helps protect the cooking area when it is left outdoors. In use, it supports practical workflows, where grilling and prep can happen simultaneously. The overall setup remains straightforward, with the side burner's reach shaping where food prep can be positioned alongside the main grilling area.
Size and Seating
With the gas barbecue, the "4+1" burner layout is designed to provide a multi-burner cooking setup. Four main burners support simultaneous cooking, while a separate side ring burner supports smaller tasks such as heating or warming. Seating capacity depends on how many dishes are cooked at the same time, as well as whether sides require their own warming space. For smaller households, the cooking area can feel underused between entertaining occasions, even though the layout supports group meals without requiring a smaller table grill.
Materials and Build
The CosmoGrill is a gas barbecue with a cover, arranged with four main burners and a separate side ring burner for smaller-portion cooking. The main housing and cooking area are designed for outdoor use, and the cover is intended to help protect heat and food from wind while supporting more even cooking when temperatures are stable. Build quality focuses on burner capacity.
Comfort and Features
Comfort and Features are driven mainly by the grill setup for everyday cooking and by what is included in the box, rather than by any high-end smart functions. The gas barbecue has four main burners plus a separate side ring burner, so side dishes can be cooked without occupying the main cooking space. It uses gas operation and includes a cover, which helps keep food protected between heating cycles and supports cooking in stages.
Who Is This For?
This grill suits people who want a gas BBQ setup for cooking main meals and side dishes at the same time, with 4 burners plus a separate side burner. It fits households that cook for more than two people, since the multiple main burners make it easier to manage different heat zones, while the side burner is designed for smaller items such as sauces or vegetables. A gas model may appeal to buyers who prefer a faster start-up than charcoal. Buyers should check their available outdoor space before ordering.
Where to Buy in the UK
Where to buy the CosmoGrill 4+1 - Deluxe Grill BBQ with Side Ring Burner Black (Barbecue with Cover) in the UK typically starts with UK BBQ retailers and major online marketplaces that list The CosmoGrill products. Approved places to check include Amazon UK, John Lewis, Currys, AO, Argos, Plus B&Q, Homebase, Wickes, The Range and Wayfair, as availability can change by region. Before ordering, confirm the listing matches the 4+1 configuration with four main burners plus a side ring burner, and that the BBQ is supplied with a cover. Check the description for the black finish to ensure the unit colour matches the listing. For delivery and safe setup, verify the barbecue dimensions and the gas type. Also confirm the correct gas setup for the model, as the gas bottle, regulator and hose are usually sold separately; check that the chosen parts are compatible and follow basic gas safety habits such as keeping clear of flammable materials, turning off at the bottle after use and cleaning to reduce grease flare-ups.
Frequently Asked Questions
Is the gas barbecue worth it?
For regular garden barbecuing for family and guests, the CosmoGrill (a 4 burners + 1 side burner 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 gas barbecue have?
This gas barbecue is a 4 burners + 1 side burner 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 the CosmoGrill use?
The CosmoGrill 4 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.
What features does the gas barbecue have?
This gas barbecue offers side burner. A side burner is genuinely useful for sauces, onions or keeping a pan warm without going indoors. Match the features to how you actually cook.
How do you look after the CosmoGrill?
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.