gpruett Posted January 18, 2006 Report Share Posted January 18, 2006 Question, does anyone know what the draft hood clearance should be for a gas fired WH from combustibles? Found an attic install today where the draft hood was 5" from the roof decking. I know about the 1" rule on the flue, but can't find anything specific about the top clearances. Thanks folks! Quote Link to comment Share on other sites More sharing options...
Neal Lewis Posted January 18, 2006 Report Share Posted January 18, 2006 I can't imagine how the draft hood could be so close to the roof; there would barely be any room for a flue. I would consider the draft hood the same as a single wall flue- six inches of clearance. There is also the required clearance from the top of the heater itself, which I believe is twelve twelve inches. All of the clearances are printed on the newer water heaters. Quote Link to comment Share on other sites More sharing options...
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