1. Welcome Hearth.com Guests and Visitors - Please enjoy our forums!
    Hearth.com GOLD Sponsors who help bring the site content to you:
    Hearthstone Soapstone and Cast-Iron stoves( Wood, Gas or Pellet Stoves and Inserts)
    Caluwe - Passion for Fire and Water ( Pellet and Wood Hydronic and Space Heating)

Monday is the day

Post in 'The Hearth Room - Wood Stoves and Fireplaces' started by suprz, Oct 25, 2012.

  1. suprz

    suprz Member

    Joined:
    Sep 24, 2012
    Messages:
    219
    Loc:
    Rhode island
    The installers put in the chimney...I will be building the hearth this weekend. It will consist of 3/16 plywood, 1/2 " durock nexgen and 1/4 ceramic tile on the floor and 1/2" durock nexgen and 1" rock tiles with a 1" air gap on the walls now according to the NAFP 211 that should reduce the clearance in back of the stove to 12" my stove came with a heat shield that allows 17 inches to a COMBUSTIBLE wall so with the wall protection and the heat shield I should be fine with that clearance and per my manual the stove requires a 3/8" protection on the floor so I should be be good to go .(..I am using stacked durock for the spacers on the wall)

    Thoughts?

    Helpful Sponsor Ads!





  2. ridemgis

    ridemgis Burning Hunk

    Joined:
    Jun 14, 2012
    Messages:
    203
    Loc:
    South Kingstown, Rhode Island
    I'm no expert on this but I did a little homework when I was considering an F3 and I'm not sure your hearth plan meets the specs required. The Jotul manual (page 10) says you need an R value of 1.1. A half inch of Durock is .39 and a quarter inch tile only .020. These numbers are from http://www.chimneysweeponline.com/horvalue.htm
  3. suprz

    suprz Member

    Joined:
    Sep 24, 2012
    Messages:
    219
    Loc:
    Rhode island
    Maybe the newer F3's are different but my manual says "during laboratory testing it was that the floor protector should be one layer of 3/8 non combustible millboard or equivalent. You may decorate the millboard with a variety of ceramic tiles or bricks. All joints should be filled using only non combustible materials" page 5 in my 3tdic manual.
  4. begreen

    begreen Mooderator Staff Member

    Joined:
    Nov 18, 2005
    Messages:
    46,003
    Loc:
    South Puget Sound, WA
    Remember to leave a gap at the bottom and top of the wall shield to allow convective ventilation behind it. And yes, the clearance measurement is to the nearest combustible. In this case it would be the wall behind the wall shield. Like I said before, I would prefer 3/4" plywood and I would probably go 2 layers of durock just in case this stove doesn't work out well. That might save a possible rebuild.
  5. suprz

    suprz Member

    Joined:
    Sep 24, 2012
    Messages:
    219
    Loc:
    Rhode island
    From the wall behind the wall shield? I was calculating 12 inches from the shield....that could save some space
  6. begreen

    begreen Mooderator Staff Member

    Joined:
    Nov 18, 2005
    Messages:
    46,003
    Loc:
    South Puget Sound, WA
    Yes, clearance to the nearest combustible.
  7. ridemgis

    ridemgis Burning Hunk

    Joined:
    Jun 14, 2012
    Messages:
    203
    Loc:
    South Kingstown, Rhode Island
    Sorry, thought it was a new stove!
  8. suprz

    suprz Member

    Joined:
    Sep 24, 2012
    Messages:
    219
    Loc:
    Rhode island
    I wish it was, but not enough money for the new F3 ...and they don't make it in ivory anymore and the wife likes ivory.....says out goes with the "decor"..... So next stove has to be ivory too if we ever change this one out

Share This Page