G'day Coralie,

So I've double checked Bens's response on a previous Q&A because I suspected he got his words mixed up abit there - Pot Support and Can Stabiliser are often confused as being the same thing.

You dont need the Pot Support, but you will need to use the Can Stabiliser - orange plastic thingo - when you are using larger or heavier pots.  There isnt actually a weight rating or size limit with these stoves, largely because they're designed for hiking so its assumed they'd be able to handle even the largest of hiking cookware options.
If you are using conventional cookware i probably wouldnt want to exceed anything around 20cm in diameter for stability, and be mindful that we're not talking trying to boil a 5L pot of water which would be to heavy IMO.

The only other thing to consider with using standard larger cookware is that the burner itself is quite small and you may have issues with heat distribution and food cooking evenly.
The Jetboil Fry Pan, or Sea to Summit Alpha pans are good options at 10", aswell as the Sea to Summit X-Pot, Alpha, or Sigma range.

Hope that helps!

G'day Karen,

The burner is approximately 4.5cm in diameter.
Hope that helps!

G'day Sam,

The Jetboil MightMo Hiking Stove uses a universal fit screw type fuel canister so you don't need to purchase a Jetboil brand one. You should be able to pick up canisters from a range of brands (MSR, Companion, Jetboil) in any camping store worldwide. Just let the staff know it's for a hiking stove with a screw in thread and they'll be able to direct you to the correct type.