I've seen mention of an extra "always open" air port on modern EPA stoves , not part of the air control system. This prevents you from shutting the air down too far and getting incomplete combustion. In my case I have very strong draft and I would like a little more control to shut the air down further. I am always fiddling with the pushrod right at the very edge of being completely closed. I feel like I would have better control overall if I blocked the extra air port by 50% or so. I've read of people doing that on this forum.
My question is, where is that air port on my Hampton HI-300. I think I found it as shown by the arrow in the attached picture. Just wanted to confirm.
Thanks,
-Jim
![[Hearth.com] Hampton HI-300 Auxiliary Air Hole [Hearth.com] Hampton HI-300 Auxiliary Air Hole](https://www.hearth.com/talk/data/attachments/141/141546-cab0f6348060f65d74395a622e67ef8c.jpg?hash=8Yh4poUces)
My question is, where is that air port on my Hampton HI-300. I think I found it as shown by the arrow in the attached picture. Just wanted to confirm.
Thanks,
-Jim
![[Hearth.com] Hampton HI-300 Auxiliary Air Hole [Hearth.com] Hampton HI-300 Auxiliary Air Hole](https://www.hearth.com/talk/data/attachments/141/141546-cab0f6348060f65d74395a622e67ef8c.jpg?hash=8Yh4poUces)