We decided last week that although the webasto central heating does a wonderful job of heating the boat, it DOES hammer the batteries - despite what it says in the manual.
SO, on Thursday night after work, I began to construct a surround/hearth in accordance with the Soliftec guidlines: http://www.soliftec.com/Boat%20Stoves%201-page.pdf
I began by putting the stove in the place we decided it would go in - then moving it as it would be directly in the way of the lighting wire loom on the plan!
Having compromised on the position, I marked out on the floor where it needed to be and then cut a hole through the floor and used self tapping/self drilling screws to attach 2 angled brackets to the underfloor bearers. Having done that, I then screwed down some board over the whole area to give it a bit of height. On top of that, I put down some scraggy bits of ply to create a 10mm air gap and then fitted some of the heat proofing -I'd already bought the 25mm calcium silicate board (which has been rolling around in the back of my jeep for the last few weeks making a mess). I was sceptical of whether it would be strong enough to hold the weight of the tiles... (which ended up being ex display in our local depot - NOT our first choice but the only ones they had in stock on Saturday morning when we went shopping) but once the tile adhesive was lathered all over it, they seemed to be fine - it was dry within a couple of hours and we could lift the stove into place.
Cutting the holes in the tiles was a pain - I got through 5 "tile drill bits" and various other drill bits - AND ended up resorting to an old tile saw to enlarge the the holes to accommodate the brackets.