I would like to fit a solid fuel burner into a caravan, the carvan is a 30feet by 10feet static. The only heating i have is the fitted gas fire, hence the solid fuel burner. I would like any advise in the safe way of fitting the burner, such as size of the burner, any heat protection i need to use and what type. Also can the flue from the gas fire be used for the solid fuel burner or does it need to be changed. Thank you