Question Author
Thanks for your answers, I will rephrase my question a little less glibly. My dad's wife has stopped him using the fireplace in the living room as they have just had it done up and she doesn't like the dust getting on the carpet.
My dad, being of a certain age likes to light a fire, so as he can't do it indoors anymore we want to get him a chiminea so he can have a fire on the patio instead.
It seems the iron ones are the best as I have had other people tell me that the clay ones break easily.
thanks