Our stove was installed in March this year, so only seen about 3 or 4 months of use really. Lit it earlier and I can now hear a sort of soft sizzling sound in the flue, loudest near the first joint around head height. When I say loudest, you still need to have your ear about 2 foot away before you can hear it.
The flue temp at that point was 160C, and has dropped to 100C now I've cautiously let the fire burn down to embers.
No glow or excessive smoke out of the top of the chimney at all.
I clearly haven't got a full on chimney fire, but any ideas what it could be? Do I need a sweep to come and look before I burn anything again?
Don't burn anything about 20% (to my knowledge, obviously don't test every log), so really don't think I'm creosoted up, but not sure what else to think and obviously want to play it safe.