SNations Posted February 25, 2012 Report Share Posted February 25, 2012 As late as 2006 the International Residential Code used to have sections only for combustion air all from inside, and all from outside. Now it also has a section for combined inside/outside combustion air. Does anybody know if the National Fuel Gas Code was similarly changed around 2009, or did it always have a section for combined inside/outside combustion air. I'm just curious. Quote Link to comment Share on other sites More sharing options...
plummen Posted February 26, 2012 Report Share Posted February 26, 2012 Ive piped in outside air for combustion when there wasnt enough inside air before,gas company doesnt complain . Quote Link to comment Share on other sites More sharing options...
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