freetown fred wrote:I hate to step on your professionalism, but anti freeze is tried & true by myself for years in Vermont's harshest elements & in 10 yrs never had a call back--
I 'did' say, that many have done it, and have no probems that they know of..
Glad you are one!
But keep in mind, that 10 years "should" be a drop in the bucket
for the lifespan of a masonry chimney.
Like you and I, the older we get, the more likely something is going to happen..
I could work like a bull.
40 years ago..
My experience was with concrete mostly, a cousin of mortar, so to speak..
The ASTM does not recommend it, that's all I was refering to..
(ASTM is the major testing and materials group)
Also keep in mind, I am the one that believes it's okay to use an MPD,
and it's okay to run two flue pipes in a chimney,
providing the operator/installer is somewhat intelligent..
So I am far from a "doom and gloomer"..
I'm not saying that the antifreeze chimney will fall down in the first