The Best Gas BBQs with a Side Burner (UK 2026)

By the Grill and Grate editorial team · Updated 2026 · How we test & score

A side burner adds a separate gas ring beside the grill - for sauces, onions, or keeping a pan warm without trekking back to the kitchen. Here's what to look for and our top picks with a side burner.

Quick answer

Barbecues labelled '3+1', '4+1' or '6+1' have that number of main burners plus a side burner. It's one of the genuinely useful extras, especially if you cook sides, sauces or reheat while grilling. CosmoGrill, Outsunny, VonHaus and Campingaz all offer strong options. Check the side burner has its own control and a lid to protect it, and remember it adds to the barbecue's overall width.

What to look for

Confirm the side burner is independently controlled and reasonably powerful - a weak ring struggles to bring a pan to the boil. A hinged cover keeps it clean and gives you a flat side shelf when it's not in use. Check the overall assembled width, as the side burner adds noticeably to the footprint. Otherwise judge the barbecue on the usual essentials: main burner count, grates, lid thermometer and build.

How we pick

We rate these on the usefulness of the side burner alongside the main grill's performance, build and value. Every pick is a genuine gas barbecue with a working side burner.

Our top picks

Frequently asked questions

Is a side burner on a BBQ worth it?

For many people, yes - a side burner lets you make a sauce, fry onions, warm beans or keep a pan hot without going indoors, which keeps you with your guests. It's most useful if you cook sides rather than just grilling meat. If you only ever grill and then serve, it adds width and cost you may not need, so be honest about how you cook.

What does 3+1 mean on a gas BBQ?

A '3+1' gas barbecue has three main burners under the grill plus one side burner on a side shelf. The convention applies across sizes, so '4+1' means four main burners plus a side burner, and '6+2' means six main plus two side burners. The main number tells you the grill capacity; the second is for pans rather than grilling.

Bottom line

Our top pick is the Char-Broil Gas2Coal 330 Hybrid (our score 9.6/10) - A practical gas barbecue (3 burners + 1 side burner, hybrid gas + charcoal) for outdoor cooking..