I've looked at the stack right after engaging, and later as well. Last night, though, it kicked in after about 10 min. when the stove temp got a bit higher. I'm using a magnetic thermo, laid on the stainless tee snout right behind the flue collar and reducer. Last night it was a little over 400...probably needed a little more. I've been thinking about getting a flue probe thermo and putting it where the tee goes vertical. I'm also considering getting a cat thermo. I guess that would give me a better idea what the temp is right there at the cat, but I'd need a mirror to see it...Todd said:Woody,
How soon after you engaged did you look at your stack? Sometimes for me it can take 5 minutes or more til the stack goes smokeless. I also pay more attention to my stack temp than stove top when looking to engage. I think the majority of the time I engage with a stove top of about 200 but the internal stack temps are well within lite off range.