Just because you want a portable grill doesn’t mean you must ... It also needs the small disposable gas canisters you probably associate with a camping stove rather than the big, refillable ...

It’s commonly stored as a compressed gas or liquid, or within solids ... However, the technology is developing rapidly, from Toyota’s portable canisters to hydrogen pastes and advanced ...

Screw a CO2 canister on one end, screw the other onto your valve and either turn a knob or just press down and with a short blast of pressurised gas, you're good to go. I have tested eight of the ...

So, why not use two butane canisters to double the output to 22,200 BTUs! After a few modifications to the portable stove and it was able to accommodate a second burner neatly within the original.

And very possibly one of the best portable barbecues too ... The Weber Traveler runs on the kind of disposable, screw top gas canisters made by the likes of Coleman, Weber and Primus.