Any reason why you can?t put one in? Or are there regulations that prohibit it.
Here in the UK stoves fitted into residences should be installed to HETAS. stds but unless it is one of those posh ?sheds? where guests can sleep the rules are less stringent,though you do have to be sensible so it pays to follow the guidelines anyway especially with clearances to combustible materials. But in a shed you don?t have to spend 100?s on an approved stove ,many a DIY stove has been made from a bit of large diameter steel pipe and some metal sheet or there are unapproved stoves sold for about £50 on eBay. Cause bung your shed on wheels it becomes a ?Shepherds Hut? and the rules can be relaxed as well.
There used to be 1000?s of small sheds in the UK with a stove, they were every few miles along railway lines and were for the track gangers to have a place to warm up and store tools in back when they had to walk to the location.. Often the brick or stone chimney in the undergrowth by a railway line or disused one still remains though the timber of the shed has long disappeared.
This sort of thing.
GH