I've been running the stove in stove temp on the lowest setting for a couple days, trying to keep the heat up in case we lost power. We did not. Took a look in the burn pot a couple minutes ago, and had a large clinker. I don't usually run on stove temp. I guess it doesn't work too well on low for an extended period of time. My distribution blower was also on low, could that have contributed to the problem? I'm burning Turmans, no problem until I burned on stove temp low setting.