Gregory Allan

In my last post I meant to note that the pipe in my drawing measures out to roughly 27 feet long, even though it's only taking up a relatively small amount of space.

After the pipe finally winds its way to near the top of the ceiling, I'm asking the exhaust to travel straight down for three feet, before making it's way through the thimble and into the chimney. This seems to go against what I used to think of as common sense when it comes to woodstove exhausts.

Hi everyone,

I don't mean to hijack this post, but I'm new here, and the topic heading fits me exactly. I have a question about draft, and adapting a mass rocket heater to an existing chimney.

I have a wall, nine feet long, where we have an existing Ashley woodstove. Roughly half this wall is brick chimney, going up through the middle of the house. The other half is a concrete block wall which has been poured solid with cement, and then had red brick laid all across the front to make it match the chimney. The wall sits on a poured cement floor, covered with ceramic tile. The floor is poured on top of solid limestone, cut out of a large hill in middle Tennessee. So I've got a pretty good thermal mass going already.

What I'm thinking of doing is building a vertical mass storage, with a six inch pipe running serpentine throughout, and then bringing the pipe back to the existing chimney flue.

I'm attaching a drawing that will better explain what I'm trying to describe.

My question is, has anyone else tried something like this. My big question is, will it draw all the way through and out the chimney?

Suggestions and comments are invited and appreciated. Thanks.