I gave up on my old PelPro 120 (2008 model) and just bought/installed a Comfortbilt HP22N. It has a nice controller that allows you to tweak many of the settings. One of them happens to be the exhaust voltage.
My Pelpro seemed to suffer from too much combustion air. This HP22N was the same way on the first start. Changing the air intake is the easiest and recommended way to reduce the combustion air. However, even with it closed as far as it is allowed, the 1/2 burned pellets are still jumping around too much IMO. So I turned the voltage down and things got better.
My question is this... Is it better to open the air intake *and* reduce voltage to get the right amount of combustion airflow, or is it better to reduce the air intake as far as possible while maintaining the highest voltage that has the right amount of airflow?
There must be some value, or balance point to how the two interact. I figure the vacuum will be much higher in the second case (high V, low air intake) and the exhaust fan will be working much harder. Not sure if that is the best scenario. (no, I haven't hooked up my gauge for the pressure yet)
My Pelpro seemed to suffer from too much combustion air. This HP22N was the same way on the first start. Changing the air intake is the easiest and recommended way to reduce the combustion air. However, even with it closed as far as it is allowed, the 1/2 burned pellets are still jumping around too much IMO. So I turned the voltage down and things got better.
My question is this... Is it better to open the air intake *and* reduce voltage to get the right amount of combustion airflow, or is it better to reduce the air intake as far as possible while maintaining the highest voltage that has the right amount of airflow?
There must be some value, or balance point to how the two interact. I figure the vacuum will be much higher in the second case (high V, low air intake) and the exhaust fan will be working much harder. Not sure if that is the best scenario. (no, I haven't hooked up my gauge for the pressure yet)