I personally don't think you can beat a squirrel, I've had 3 over the past 21 years on 3 different boats, not the prettiest of stoves although the new ones have been more prettified (if thats a word!)
If you decide to go for another type, I would recomend that you don't buy a fire that you have to open the fire door to get the ashtray out, much better to have seperate doors so you don't get smoke filling the cabin when you want to take the ashtray out, my partner bought one of the above a few weeks ago and really regrets it. hope this is helpful to you.