allseason Posted July 3, 2012 Report Share Posted July 3, 2012 What is the correct height above grade at the exterior for the vent on a direct vent gas fireplace, am I correct at 12"? Link to comment Share on other sites More sharing options...
Mike Lamb Posted July 3, 2012 Report Share Posted July 3, 2012 Correct. NFPA 12.9.3 The vent terminal of a direct-vent appliance with an input of 10,000 Btu/hr (3 kW) or less shall be located at least 6 in. (150 mm) from any air opening into a building, and such an appliance with an input over 10,000 Btu/hr (3 kW) but not over 50,000 Btu/hr (14.7 kW) shall be installed with a 9 in. (230 mm) vent termination clearance, and an appliance with an input over 50,000 Btu/hr (14.7 kW) shall be at least a 12 in. (300 mm) vent termination clearance. The bottom of the vent terminal and the air intake shall be located at least 12 in. (300 mm) above finished grade. [ROP 54/Z223.1-2] Link to comment Share on other sites More sharing options...
allseason Posted July 3, 2012 Author Report Share Posted July 3, 2012 Thanks Mike, that's what I had also referred to. Link to comment Share on other sites More sharing options...
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