Sealing Flue Tiles

I have a quick question for someone with more experience than I before I get too far into things. I'm laying up a block chimney for my shop and I'm trying to wade through all the information about how to do the butt joints on the clay tiles. I'm laying 8x8 square lines up through the block and know I need to put something between the tiles but I'm not sure what. I know the regular mortar probably won't hold up to the heat and when it starts to fall out it will leave too much of a gap and let the gases escape.

Could I use something like this for ease and connivence

http://www.amazon.com/MEECOS-120-Furnace-Cement-F ... ace+cement

or will it not hold up as well in the long term. Good for patches but not for installation.

I also saw this

http://www.lowes.com/pd_15879-138-35515_0__?produ ... facetInfo=

which I think is something similar to what I used for some furnace repair at some time.

Any help or advice would be appreciated. I can't keep setting block until I know how to proceed with the flue. Thanks!!

No reason not to use your regular block mud--ya using sakrete or mixing your own---no matter--either or will work fine--my chimney & tile are maybe 40 yrs old & not a problem with anything mud wise--blocks or tiles--just butter your tile & set it down:)

I'm making my own mud on this one. Sand and cement. Most likely it will just be a coal stove going in when it's all said and done.

Doesn't matter what you burn in it rj--just butter the tiles good--1/2 inch or there abouts and PUSH down gently--LOL how bout some pix?

If your only burning coal then I can't see how that would be a problem(low flue gas temp) but you should use refractory cement like Heat Stop 50 or similar cement.If in the future you would decide to do something stupid like burn wood instead of coal then it may be a issue.I am not a mason by any stretch of they imagination but its just my opinion. Keepaeyeonit

Just getting it going. Taking it slow and steady, learning from my old man as I go. Then I'll be able to pass it down to my own boys. Enough to get the clean out door in and that tile is set in and ready for the rest to actually get going.

OUTSTANDING rj, she's lookin real good Don't forget to teach those boys the KISS philosophy, it'll keep them from confusing the hell out of themselves going through life

My tiles where set 33 years ago with refractory cement. Still tight today, back then I was told the coal would erode the mud from joints.

A little trick I learned on those clean out doors is to take the door off the frame and just set the frame in. Looks good, passing any kind of skill down to the next generation is very important in my opinion.