Product · Weber
Weber Genesis II E-310 GBS: 3 burners plus side burner
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The Genesis II E-310 GBS is a large gas barbecue for people who entertain and want a lot of grate space with a side burner for sauces and sides. Its standout figure is the 3,456 cm² cooking area, the largest confirmed area among the Weber models in this guide, paired with the Gourmet BBQ System that accepts insert accessories.
- Main burners
- 3
- Side burner
- 1, output not stated
- Total power
- 11.43 kW
- Cooking area
- 3,456 cm²
- Weight
- 77 kg
In its favour
- The 3,456 cm² cooking area is the largest stated grate area in this guide.
- A stainless steel frame and cast iron grates point to a heavy, solid build at 77 kg.
- Five power levels are listed, and the GBS version comes with a black and white finish.
Good to know
- The listing gives a side burner count of one but no output figure for it.
- The listing is thin on detail, with no bullets on ignition, warranty or included regulator.
Our take
Reading a listing with no bullets
The Amazon page carries no meaningful bullet points, so everything here comes from the specifications. They list three main burners and one side burner, a total output of 11.43 kW, two racks, five power levels and a stainless steel frame. Assembled dimensions are around 158 cm wide, 79 cm deep and 79 cm high, though another spec line gives 126 x 81 x 160 cm, and the weight is 77 kg.
The ignition type is not described, so check Weber's documentation.
Grate area and the GBS insert
A 3,456 cm² cooking area is enough for a full party spread: burgers, sausages, chicken and vegetables at once, with room on the second rack for buns or keeping food warm. GBS refers to the Gourmet BBQ System, where the centre of the grate lifts out for inserts such as a griddle or pizza stone, sold separately.
The side burner is useful for a pan of onions, a pot of beans or a sauce, so you do not have to run back and forth to the kitchen.
Placement and assembly
At 77 kg and around 158 cm wide, this grill needs a large, level patio and two people to put it in place. Assembly is required. It is a fixture, so plan where it will live year round and allow clearance from walls and fences. A fitted cover is worth considering too, since a grill this size will spend most of the year outdoors.
How it compares for entertaining
The Weber Genesis E-425S lists 17.6 kW with a sear burner and weighs 83.8 kg. The CosmoGrill Platinum 6+2 claims 27.7 kW from six main burners, an infrared side sear zone and a rotisserie burner, at 51.5 kg. The Weber Spirit EP-425 offers a 2,745 cm² grill and griddle at 8.2 kW.
Verdict
The Genesis II E-310 GBS suits hosts who prioritise a big, confirmed grate, a side burner and Weber's GBS insert system. If searing power matters more, the Weber Genesis E-425S adds a dedicated sear burner, and anyone after a rotisserie and maximum stated output should look at the CosmoGrill Platinum 6+2.
Compared with alternatives in: Best gas BBQs with a side burner, Best large gas BBQs for family parties
Amazon listing title: Genesis II Gas Grill E-310 GBS