That Stuff (vermiculite) does anyone know what it is if it is needed
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Not sure if you mean stove cement...
but actually I assume you mean vermiculite to pour in around and insulate the liner maybe? If your liner is not yet in people here seem to prefer the insulation kits where you blanket the liner with a wrap and pull a metal mesh sleeve over it. There's a bunch of videos out there on how to do that before you install the liner.
but actually I assume you mean vermiculite to pour in around and insulate the liner maybe? If your liner is not yet in people here seem to prefer the insulation kits where you blanket the liner with a wrap and pull a metal mesh sleeve over it. There's a bunch of videos out there on how to do that before you install the liner.
CarbonNeutral
Minister of Fire
One or the other, preferably insulation around the pipe if it will fit down your flue. If they are seriously suggesting both, go talk to some other dealers.
Here in wisconsin we can't pour that stuff down the flues anymore. They came and took all we had out of the warehouse for disposal. The ones I have taken out with that stuff poured down it was water soaked. Any leak and that stuff soaks it up like a sponge and cancers out the shelf and whatever other metals it touches. Just my 2 cents
Mr Fixit
New Member
Maybe its a difference in winter temps from here to there, but metal liners are rarely insulated around these parts. I have installed many wood and pellet liners and have never insulated any of them, and have suffered no ill effects as a result. It's my opinion that the brick or clay liner inside the masonary chimney offers all the insulation one would need. Having said that, I understand that your winter temps may be warmer and as a result, you may have poorer draft, but I still think it is unneccesary to insulate. I do not think the draft difference will be that significant to warrant the extra cost or effort.
CarbonNeutral
Minister of Fire
Mr Fixit said:
Insulation, while it helps draft and reduces creosote buildup, especially in cold climates, is primarily there for safety during a chimney fire. Most masonry chimneys are not built correctly with the air spaces that prevent a fire spreading to timber. Now most liners around here are also not insulated, but that's either due to ignorance, negligence, laziness, or rarely, because it is damn near impossible to insulate it. It is required by code in most cases.
my under standing is that it helps keep them temp around it down and if any thing exposed help prevent fire this house is old and the chimney at on time may have had a couple aplianced up stairs an not sure if blocked of correctly using would using instulation make it safer
CarbonNeutral
Minister of Fire
Statement: you should have one or the other, much more preferably insulation around the pipe, not vermiculite. Having both is no better, just more expensive. Anybody care to disagree?
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