I am planning my rehabilitate efm 520and would like some advice from the great members of this hot forum. I am half a bubble out of plumb and i will be using as my chimney, if I get your approvals a 10 " diam sch 10 pipe that i will use as the center post of a circular staircase that is out doors. I will line the pipe with stainless chimny liner. The question is should i insulate this 25 feet high pipe. This pipe fits into my architechural ual program I think i may need to insulate. but of course its added labor and cost.
also I have access to sch 10 2 inch stainless pipe. If I use that for the auger casing wiill the difference in the id from sch 40 adversely affect auger operation
I also have acquired a 8 foot auger screw. what are the visual characteristes of a worn screw. what I have is concentric and no weldments. the edges of the auger have a flat land and not knife edge. the four footer that is in the pot has knife sharp edges , please advise
I am a building little room under a building to house the efm, that is one of the needs of the out door spiral stair
thanks and this is a great forum. hot to say the least