Stove installation and hearth query

[canals are us?]

If your stove has legs and is suitable for a 12mm thick hearth then 12mm thick tiles are ok on the floor. I would still fix hardibacker board to the floor and tile on top.

 

If the stove is not suitable for a 12mm thick hearth then as said best to cut out the floor and build a new constructional hearth on the baseplate of the boat. I would use lightweight thermalite blocks and mortar them together. Cement screed on top to give a good fixing for the stove Then tile on top.

 

Walls a 25mm air gap behind fire board and tile. Don't forget the stove needs to be a good safe distance away from furniture etc