Fire Mountain Sierra 4 Burner Review UK 2026
Quick verdict
Score: 9.4/10
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-burner) for outdoor cooking.
Overall, the Fire Mountain Sierra 4 Burner is a gas barbecue designed for outdoor, garden cooking, with four burners and a listed cooking area of 60 x 42cm. Shoppers typically like the stainless steel build and cast iron grill for everyday grilling. Buyers should confirm fit and any accessory needs before purchase.
Key specifications
| Feature | Listed item Notes |
|---|---|
| Burners | Four burners Quantity stated |
| Grates | Cast iron Type stated |
| Shelves | Side shelves Included |
| Cooking area | 60 x 42cm Size stated |
Pros
- 4-burner
- Cast iron grates
- 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
With the key specifications in mind, this gas barbecue is designed to suit a family-size outdoor grilling setup, including space for a main cooking area of 60 x 42cm and side shelves for food prep. Its stainless steel build is intended to provide a clean, modern appearance in UK gardens, patios and outdoor kitchens. Four burners support different cooking approaches, while the overall layout depends on leaving adequate clearance around the unit. The grill grates are cast iron, which is typically associated with good heat contact for everyday grilling, but they do require careful cleaning to avoid a build-up that can affect performance. This is a gas barbecue (LPG/propane), and the side burner is a separate burner with a pan ring rather than additional grill space. Outdoor use only is essential: keep the barbecue away from anything flammable, use it in open air, and turn off the gas supply at the bottle after use. Grease build-up can lead to flare-ups, so regular cleaning is important. Covering and storing the unit over winter helps prevent rust.
Size and Seating
The Fire Mountain is designed for family-sized grilling, with a main cooking area that measures 60 x 42cm. In practical terms, that cooking footprint allows larger cuts to be arranged without immediate overcrowding, and it supports planning multiple items across the available space. The seating capacity is influenced more by the chosen cooking pattern than by the grill footprint alone, because diners may want different foods at the same time. It can serve several people, while very large gatherings may still require extra cooking rounds.
Materials and Build
The gas barbecue's Sierra 4 Burner uses stainless steel as the main body material, and it includes cast iron grates for the cooking surface, which can help with heat retention during grilling. The stainless steel frame is designed for routine outdoor weathering. Cast iron grates typically provide solid searing and more even hot spots, but they may also be heavier and require careful cleaning to prevent residue build-up.
Comfort and Features
Comfort and Features focuses on the day-to-day grilling tasks the Sierra 4 Burner is set up for in a family-sized layout. The cooking area measures 60 x 42cm, which allows multiple portions to be cooked at once without feeling cramped. Four gas burners provide flexible control for different heat levels, and cast iron grill grates offer a stable cooking surface suitable for regular use. Side shelves add practical workspace for prepping food and keeping items close to the grilling zone.
Who Is This For?
This BBQ suits people who want a family-sized outdoor grilling setup, with a 60 x 42cm cooking area and four main gas burners for everyday meals. It is aimed at households that regularly cook outside, and it benefits from side shelves that provide additional prep space. The stainless steel body is designed for solid day-to-day use. It is less suitable for small balconies because its overall size is not described as compact.
Where to Buy in the UK
Finding the Fire Mountain in the UK is mainly about checking major BBQ and outdoor cooking retailers, because availability can vary by season and stock can change quickly for family-sized models. Buyers can start with Amazon UK, John Lewis, Currys, AO, Argos, plus Plus B&Q, Homebase, Wickes, The Range, and Wayfair, where outdoor gas barbecues are commonly listed. Since the product title specifies a 60 x 42cm cooking area, compare that space against the store's dimensions details for the exact model. If accessories are shown alongside the listing, confirm they are for this exact model, because substitutions are common. The Sierra 4 Burner is a GAS BARBECUE (LPG/propane), designed for outdoor use ONLY, and its bottle, regulator, and hose are typically sold separately. Keep it clear of anything flammable, turn off at the bottle after use, clean to reduce grease build-up and flare-ups, and cover or store over winter to help prevent rust.
Frequently Asked Questions
Is the gas barbecue worth it?
For regular garden barbecuing for family and guests, the Fire Mountain Sierra 4 Burner (a 4-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 Fire Mountain have?
The gas barbecue is a 4-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 Fire Mountain use?
The gas barbecue 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 this gas barbecue have?
The Fire Mountain offers cast iron grates. Cast iron grates hold heat well and give better sear marks than thin steel. Match the features to how you actually cook.
How do you look after the Fire Mountain Sierra 4 Burner?
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.