Reducing the clearance behind my wood stove help

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Rangoonboth

New Member
Nov 19, 2019
4
Michigan
I'm putting in a new Pleasant hearth 2200 wood stove and I need some advice on the clearance behind the stove. The specs say It needs 16 inches to combustibles behind it. I am planning on using Micore 300 over ½" drywall (that covers 2x4 wood studs). Then ½" durock over the Micore, and finally a tile that has yet to be decided on. So my question is with this combination of non-combustibles, how close can I set the stove to the wall. I'm trying to use the existing chimney in the roof and if I can push my stove back far enough, I will avoid having to put elbows in my stovepipe. Thanks.
 
The extra layer of micore and durock are unnecessary. Put the sheet of durock on 1" spacers with a 1" gap top and bottom so that air can convect behind it. That will reduce the clearance down to 12".
 
Could I build a wall out from my drywalled wall with 2½ inch metal studs then adding durock then some sort of tile leaving a gap on the top and bottom for air. Would sometime like that work?