Hi folks …
I am slowly making progress with all of the fittings and pipes in the smoke-box area of my 3 1/2"g large boilered Tich. I am using coned fittings where appropriate but I can see that I will need some gaskets and/or thread sealant in other places in places.
I would like to think that I can take things apart in the future if needed so I am unsure if thread sealant can be taken apart without problems … so …. are gaskets a better option???
I know that it will get pretty hot in the smoke-box area due to the hot flue gasses …. but which gaskets will cope with this sort of heat … if any???
Any suggestions gratefully received 
Mike