So, after a full month of 24/7 burning, I've had 2 days with a cold stove. Ran the soot eater through, brushed the cat (not much other than some "hoar frost" on the edges of the metal, see pic; no blockages), checked behind the cat (nothing much), took out the ashes.
Interestingly, the cat seems to sag out of its space a little. Pushed it back. Seal still looked ok.
The cold Kenny mentioned above is coming in now; it was 51 this morning, and decreasing fast now to 22 overnight. Tomorrow 28, and tomorrow night 14.
Restarted the stove. Lit the kindling at 11.32. At 11.40 "tried" the cat for 30 secs, and it started glowing at one side. The other not. And as the probe was still quite far in the inactive zone, I opened the bypass again. At 11.48 engaged the cat as the probe was at the border of the active zone. Cat started glowing within 10 seconds.
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