Long time wood burner but a newbie to the pellet world. Putting in a pellet stove which will replace an existing wood burner. It will go on the same hearth and vent into an existing class A chimney which is in good shape and exits horizontally five feet up a bricked wall to outside. Chimney run outside the house is another ten feet vertical. So pellet pipe tee from back of stove and up approx. four feet to a 90 degree elbow and then junctioned with proper adapter to six inch class A. I do not plan to extend into the class A beyond this point.
Question is can I use three inch pipe for this run to the class A or does this require a transition to four inch? I have looked at information on the calculation of EVL but I am not certain of the answer to this. I assume that the tee counts for a 90 degree, and the pipe to adapter is another 90. Does the short horizontal run and up to the six inch class A chimney count as a third 90? The resistance to flow of the class A is much less than P vent. Can I save some cash and make this work with three inch pipe or do I need to spend a bit more on four inch.
Question is can I use three inch pipe for this run to the class A or does this require a transition to four inch? I have looked at information on the calculation of EVL but I am not certain of the answer to this. I assume that the tee counts for a 90 degree, and the pipe to adapter is another 90. Does the short horizontal run and up to the six inch class A chimney count as a third 90? The resistance to flow of the class A is much less than P vent. Can I save some cash and make this work with three inch pipe or do I need to spend a bit more on four inch.
