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paulz
 
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# Posted: 12 Nov 2016 11:15am
 
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  My double wall stove pipe and roof jack.  Can I insulate around it with fiberglas?  12' from stove.
  
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toyota_mdt_tech
 
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# Posted: 12 Nov 2016 01:38pm - Edited by: toyota_mdt_tech
 
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  I dont think so, doesnt it need a support box? Frame in a support box and insulate up to that point.
  
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MtnDon
 
Member
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# Posted: 12 Nov 2016 05:24pm - Edited by: MtnDon
 
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  One of the stove pipe rules is that all black pipe should be 18" distant from any combustible.  Factory made chimneys always use insulated pipe through a ceiling or wall. My chimney uses a short length (12") of insulated pipe dropped from the ceiling. Along with that a metal collar rings the insulated pipe like a big washer. There is no wood directly above that within the danger zone. 
  It uses a metal support box as was mentioned. The upper lengths of insulated pipe rest on that.
  Anything else is a fire hazard.
  
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