Always ON seems like it has to be the little control module onthe left side of the firebox. My fans work as intended, a little loud perhaps, but as intended.
I believe they're both fed independently from the control box, so that's almost certainly the culprit.
Steve
I believe they're both fed independently from the control box, so that's almost certainly the culprit.
Steve
and could see a "dead spot" on the left where the primary air manifold simply does not direct much, if any, air down that left side of the glass. I don't believe I have any obstructions. This is IMO a design limit of the air manifold air flow. I now bias my wood loads to the right side of the box or a few inches back from the left side glass and my glass stays pretty clean (only a little brown stuff on the left side, but not so much that it bothers me). Any time the fire is smoldering early in a new fire and thus the draft is not yet to it's peak with a warm chimney, you'll probably experience glass fouling. That's why I burn the first half hour with the door open (hearth screen in place), the second half hour with the door closed, but the cat UNengaged, and then engage the cat at around the 1 hour mark. I'll include a photo of my glass that I haven't cleaned in weeks in a subsequent post. Pressed for time, now...