Wire chimney brush questions

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Only my opinion - although I've been sweeping flues for years.......!
Use 12mm nylon rods, 1m length - the threads are 1/2" BSW. Drain rods aren't for you!
Always twist clockwise :confused:
Choose a brush slightly smaller than your 8" one, but get a 8" and maybe a bigger one too. Use the small one first to check for any obstructions - although there shouldn't be any on a cast flue.
I prefer nylon bristles on a brush but most of my flues have SS liners.
I don't advise using a flail type - they have been known to disconnect even when used as per instructions.
If there is a cowl on top, don't dislodge it! Have someone standing by to see when the brush appears and count the number of rods used for the future.
I use 2 powerful HEPA vacuums with double filters (Ryobi as it happens) and the mess is minimal.
John :)
 
Thanks

Got the chimney swept

I've about 3 foot of metal flue connecting stove to chimney

The inside is covered in tar or creosote

Presumably this is a fire hazard . Any way of cleaning this or will it need replacing?
 
Timber resins are very difficult indeed to shift - brushes just literally scratch the surface.
How thick do you think the tar deposit is? Personally I'd be more concerned if the deposits were further up the flue.
Can you tell us the history - have you been in the property long? Maybe it would have ignited by now if it was going to.
Replacing the stove pipe isn't usually an issue but you'll need to see how the steel pipe is connected into the concrete flue, and how accessible it is!
Regards
John :)
 
Hi I burn coal avoids not timber

The steel flue is about ten years old it connects by way of a flue adapter into 8"clay chimney
 
Not since the metal flue went in anyway. It's been all ovoids. Don't know what previous owner burnt

Don't know why it's got all coated in gunk

The as tesl flue section is a little complicated to replace so many have to wait til next heating season to replace

The stove runs closed all the time no flame so presumably the chance of a fire starting is quite low?
 
I looked up the chimney and it appears ok

Inside is colored black but no coatings of anything that I can see
 
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