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We've had our stoves in place for 5 or so years.
They are AGA Litte Wenlocks exiting vertically into a liner.
I noticed when lighting the fire tonight (it's now out) that I could see flames or certainly the light of the flame coming from where the stove and flue adapter attach(?).
So it's not where the flue joins the adapter but where adapter sits on the stove.
So from this exploded diagram it's where 5 joins 6.
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There looks to have been fire rope in there but I don't recall there ever being any fire cement.
My Google fu is weak tonight.
Can STW help?
Edit: do 5 is the flue spigot but I cannot find mention of what seals it against the stove. The flue into the spigot is fire cemented and that's not where there is a problem.
I am just looking at mine and helped the installer. I am pretty sure he just used rope, hope mines ok it's not cold enough yet to fire it up. It's a different model it would be a nightmare to retrofit cement.
Thanks poolman.
It looks like the rope might have been disturbed from the inside during sweeping.
Should I just be able to poke a bit wore thin fire rope in and then heat resistant seal the top for neatness?
on mine - Morso squirrel- its just bolts on to form a seal though i did also use the heat proof sealant which is better than fire cement IMHO
Just seal it yourself is the best bet using either fire cement or fire sealant if it is not worn/ corroded- can you put a pic up?
Coal is acidic due to the sulphur and it will decay in this area- IIRC i replaced mine every 4 years - then again it was my only heat source and lit constantly for about 7 months a year
EDIT possibly also due to expansion - it may "seal" once it heats up as it may be thinner than the stove and expand more hence the gap when cold?? Guessing there as this should not happen
has the stove moved slightly and dislodged the flue?
Can you get your hand inside and tuck it back in, or get an offcut and do the same. Good point about moving the stove as that would reveal a gap.
I am pretty sure the weight of my chimney, it took 2 of us to lift it, forces a perfect seal.
@ Junkyard - no obvious corrosion.
I think it was the brush of the chimney sweep that's disturbed the rope (pulled it in) and made the issue visible.
Just stuck the spirit level on it and the stove is a little off but it's been like that since 2009! The flue hasn't moved though as you would see more than the usual cracking
Will get some flexible heat resistance filler and pop a bit in the void and see how we get on.
Edit.
@poolman - just done that and tucked the rope back into place but I fear some of it has come off.
Would I be best sealing top down with flexible filler or try and get some small gauge rope and pack form the inside?
Would be best to try squeeze some rope in if you can. You might be able to loosen the collar a bit to get some rope in but wouldn't of thought there will be much movement. You could try seal it but even the flexible sealant still cracks.
Cheers chaps.
Feeling a little rosier about this.
Will pick up some fire rope tomorrow and see if I can squeeze some in from the inside and then get some fire cement to go in from the top.
Might help if you put some heat on the area from outside and tucked it in when warm. I would have a dry run first, apply heat, then use a spatula to tuck it in. I got some leather bbq gloves from aldi which would be v helpful.
Does the rope need heating first then?