Hope this is an OK place to post this, got to the forum by a search that came here with a similar topic.
I am renovating our '78 vintage log home, constructed as it has come to pass with little regard for conventions like building, electrical, fire codes. (I am liscensed electrician in the 48, and was a mechanical engineer, though I do somehting else these days.)
Anyway time had come to investigate the chase of the lower level Vermont Castings woodburner (installed in mid-late 80's.) As par for the house there had been no fireblocking between levels, most concerningly and left by me till now directly above the suspended ceiline in the basement level where it resides where a big ole hole was hogged out of the floor and left open into the chase. In the process of doing something about this I got to looking at the pipe itself. It is original Metalbestos SS, labelled Wallace Murray Corp, which places it manufactured before the got bought in '81 I figure but perhaps sold new much later of course up here. Amazingly extensively searching the net, including but not limited to Selkirk's site, yields no where to find installation manuals for this or even for the SS2 that superceded it.
(Which is incredible to me, I mean I've never not found at least someone SELLING a copy of a manual for anything, even for my 1952 Walker-Turner table saw.)
Anyway my question involves the joints, the very top most of which before it leaves the roof has a stainless band clamp around the joint that clamps around the rolled edges of the joining sections. The rest of the sections (in the chase) do not have clamps. The current CF series manual (am I guessing this is the current residential product?) shows clamps at all joints.
So question is for this old SS series pipe, should there be clamps or not, was only the roof one clamped to forestall a lift off in wind or the like at the time? If they should be can I use a current series clamp on it now, should I? Past owners records do show regular service and inspection, so I feel the chimney is probably good, I have not used the stove yet, won't use it too much, but want it right.
Thoughts or opinions most appreciated.