Just Bought a Jotul F3 today.....Hearth Pad questions

Alright, so based on some good adivce and lots of reading on this site we opted for the Jotul F3 to supplement the heat in our soon to be built log cabin in northern New England. Should be nice when installed etc.

Now come the questions......

I was planning on building the hearth pad myself and I am looking for some advice. I don't want to raise it too high above the floor so I was thinking of laying something down on top of the hardwood floors......something like 3/4 ply with a layer of cement backer board and slate tiles or ceramic tiles as the finished surface. I need a minimum of 9" in the rear from the heat shield to the wall and I was going to push that out to 12" for peace of mind. I believe US code for the front is 16" while Canada is 18"......so I'll take that into consideration and probably just go with 18" up front. I'll figure out the sides as well (don't know the code off the top of my head).

Am I barking up the right tree on this? Anything terribly wrong with this construction method?

Also, I was originally thinking of going with double walled pipe as the pipe will be going up about 16' in a cathedral ceiling then through the roof via a chimney kit. I believe single walled pipe would radiate more heat off of it but also might need additional clearance from the loft railings etc. I should just stick with the double walled and suck up the added cost right?

Thanks in advance

Steve

Thanks for the response, I appreciate it.

bump.....

Any feedback on the chimney and hearth pad?

Thanks

BeGreen - Thanks, If I had the manual on me I could have read that, we bought the stove but the store will hold it until the home is ready for the install. We break ground tomorrow, should have the log home dried in by Mid to late December.......so I want to get all my ducks in a row and procure everything I will need.

I guess I'll use 3/4 plywood and 4 layers of rock......should make it about 3.5" high when done. I saw a 3x5' piece of dura rock is about $10, I can probably build it for $125 or less with tile.

Thanks again.

Steve