Tennentslager

Google Fulham nozzle.

B&Q have a big saw and will cut to any size you want to within half a mil. Use 25mm MDF and good screws with flush hinges and you're in DiY heaven.

If your making a hole...with a jigsaw? Then shove it out of the way and insert a half dozen stainless steel pan scourers. Think they are four for a quid in Aldi and you'll have an extra gap for insurance. As @Crofter said it doesn't get that hot in normal running.

Do you not need one of these? Oh and yes fire cement...too high a temperature for sealant and you'd have a job ramming rope in there but possible I guess. Fire cement is 4 squid from screwfix

As far as I saw it's all very simple kit...basically two bits of stainless steel tube with some sort of insulating fibre in between. Each end has a self locking joining band that snaps closed rather like an old suitcase clasp. Not sure how an untrained eye could vouch for the quality/thickness of the steel or the properties of the insulation though...

Had a look at that link and it's good prices. My flue was twice the cost of the stove!

I got mine from Mi Flues in Glasgow. The online shop is expensive but the guy at the trade counter have me the trade discount of 58%! Even then it was around £55 per item...this stuff ain't cheap

A storm collar is what you need, should've cheaper than flashing

The final shspe is a pentagon inside a hexagon, so 11 sides In the other lines it has a hexagon, a pentagon and a square so = 15

So boffins the answer is 53

It's 2 o'clock There are 3 bananas And A pentagon plus a hexagon equals 11 sides Simples...

2+3+3x11=38

5+1x10=15

15 + 38

Nope

Answer is less than 60... Boffins must be at the pub tonight, cmon @JSHarris

Nope Count the bananas Rodney!

Second puzzle Count the sides of the shapes...

First one...two x two chips in line 3 Chips =1

Nope

Okay boffins, what's the number of you add both of these together?

Aw go on I need a new joke...

Double batten at the bottom

Thank you all...sent this all to my sister to let her make a decision, I'll be the one with the screwdriver once the new unit is delivered. Top helpers you buildhubbers ???

Maybe @ryder72 might know?