Stove wistles slightly while running

[wg_bent]

My Osburn insert exhibits a slight wistle as it's running. (not the blower) Can't seem to locate the source. Is it possible that I've got a leak in the connection between the pipe and the stove? I believe I've sealed it with refractory cement. What do you all do to ensure a good seal between stove and pipe?

Seems like a tremendous amount of heat there, so I'm not even confident in silicone. I don't have room for an thermometer there. What is the stack temp just at the output of a stove that's really cooking?

 

[Willhound]

Warren
Is it sucking air from around the door, or do you notice the whistling more at a particular draft setting? I had an old Fisher years ago that would make a whisling sound at a particular draft setting as the stove sucked air in.

Willhound

 

[wg_bent]

I'll have to recheck the door, but I did tighten it and did the dollar bill test. Doesn't seem to change at all when I push on the door. I'll have to check again.

 

[Todd]

Me TO,
My stove whistles between the lowest and medium draft settings. Seems like it comes from the air intake.