On newer 52is, the draft measurement port is below the controls in an easy-to-access location.
On mine, it's under the firebox. Once the 3/8" plug/bolt is removed (from the firebox side), what kind of adapter can be threaded into it to allow me to perform draft measurements? I'm considering drilling a hole through a 3/8 bolt but sort of lost on how I could adapt a hose barb to that, especially with almost no clearance to the bricks below it.
![[Hearth.com] How does one connect to the draft port on an early 52i?](https://www.hearth.com/talk/attachments/draft-hole-webp.282662/ "[Hearth.com] How does one connect to the draft port on an early 52i?")
On mine, it's under the firebox. Once the 3/8" plug/bolt is removed (from the firebox side), what kind of adapter can be threaded into it to allow me to perform draft measurements? I'm considering drilling a hole through a 3/8 bolt but sort of lost on how I could adapt a hose barb to that, especially with almost no clearance to the bricks below it.
