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So, 4 years on after having the stove fitted on a slightly wonky hearth (I won't say who did that 😳 ) the joint between the adapter and flue pipe had loosened so I attempted to re cement it the other night.
The flue pipe inserts into the adapter around 40mm I guess and there is a coil or two of rope on the bottom of the insert and cement was on top of that.
I hooked out all the old cement and pushed the rope down to the bottom again and attempted to trowel the cement into the smallish gap, not that easy as it's quite a dry mix. I thought I'd put enough fire cement in and left it 24 hrs to dry.
Lit it last night and there was a hissing from the joint somewhere, so a crap job.
Any tips to do it right....? 🙂
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Cheers
Something I've yet to look forward to, but I did wonder how all these slightly out sized collars / pipes fitted together. So you wrap some rope round the smaller end (presumably that same rope used around stove doors etc) and then shove some cement in?.
I've used fire cement before, but it wasn't that dry so easy to press in.
Did you start with a small fire and build the heat up slowly to let the cement set?
Has the rope been in for 4 years? if so It'll probably need replacing - take the joint apart and fit new rope which will seal better, and re-cement. On a regularly used stove, annual re-roping of vulnerable joints and doors is a good idea.
It's a bit of a faff, I probably get round to it every two years, which seems to be OK for my level of use.
AFAIK the pipe shouldn't actually put any pressure onto the stove, ie be secured from 'above'.
Not sure if that makes a difference.
Cheers, not replaced any of the rope at all so far so suppose 4 years is good going, the door rope does need doing as it goes.
There's no pressure on the stove from the swan neck pipe as I think it's called, it's connected to the adapter in the register plate.
Any idea how many coils of rope I should put in the adapter, 1 or 2 as it was or more so it needs less cement on top and maybe dampen the cement down so it's easier to trowel in?
Cheers.
Something I've yet to look forward to, but I did wonder how all these slightly out sized collars / pipes fitted together. So you wrap some rope round the smaller end (presumably that same rope used around stove doors etc) and then shove some cement in?.
The rope that's on the adapter insert is around 3mm I think and the door is around 6-8mm.
I'll dig some out and go to a local stove place and get some more.
Any advice on how much rope to put around the insert?
The magic of physics ensures all the burnt gas goes up the flue anyway. You might lose the tiniest of fractions of a percent of your draw. I'd leave it well alone myself.
I dug mine out and used posh stove cement from a proper stove shop. That all cracked and fell out also.
So when in Wilko of all places i got some of their stove cement.
I fitted it by hand wearing nitrile gloves. so could poke it into the gaps. got nice round finish on it like a pie crust. it was the business. Some tiny hair lines in it was all after winter.
No more just getting going fire stink.
PS. the posh stuff was dry and hard to apply,I wonder if it was old.
Stuff from Wilko was like wet icing and found every nook and cranny. though went off like stone. And was still 10 quid for a diddy pot.
I had the same problem.
Ditched the fire cement in the end as it just cracks as the metal expands and contracts a hell of a lot more than it can.
Used high temperature silicon (google it, there's plenty out there) in the end and that has worked perfectly for the last two years.
Cheers mikeb I'll have a look for that.
Mr finger, I have to fix it as it's leaking gasses into the room so stove can't be used at the mo.
Oh and the cement was £2.66 from toolstation!