What are those chimney style garden burner things called? (UK)?

You know.. those things shaped a bit like a pear with a chimney at the top and sometimes 3 lttle legs and great for putting in the garden and burning wood in and sitting around it. I want to look one up but not sure where to go. I tried B&Q website but their "outdoor living" stuff goes through about 300 items and i cant be bothered to go through it all!