G Gila New member Joined Jan 4, 2015 Messages 19 Reaction score 0 Mar 2, 2015 #1 It seems like some older model year Diedrich IR-12's required a single 5" or 6" ID exhaust duct, but I just learned that the 2014 IR-12 requires an 8" ID instead. Does anyone know what year Diedrich enlarged the exhaust port on the IR-12 to 8"?
It seems like some older model year Diedrich IR-12's required a single 5" or 6" ID exhaust duct, but I just learned that the 2014 IR-12 requires an 8" ID instead. Does anyone know what year Diedrich enlarged the exhaust port on the IR-12 to 8"?
S sae Member Joined Nov 16, 2010 Messages 183 Reaction score 0 Mar 3, 2015 #2 they increased the BTU/hr rating but I'm not sure if this alone accounts for the need for a larger exhaust
they increased the BTU/hr rating but I'm not sure if this alone accounts for the need for a larger exhaust
G Gila New member Joined Jan 4, 2015 Messages 19 Reaction score 0 Mar 3, 2015 Thread starter #3 Just heard back from their tech support: the 8" exhaust outlet began with model year 2007.
