Routing chimney through ash pit?

  • Active since 1995, Hearth.com is THE place on the internet for free information and advice about wood stoves, pellet stoves and other energy saving equipment.

    We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense, energy issues.

    We promote the EFFICIENT, RESPONSIBLE, CLEAN and SAFE use of all fuels, whether renewable or fossil.
Status
Not open for further replies.

allpurpose

Member
Jun 16, 2014
9
Iowa
I am interested in heating a portion of my house with wood. I have a traditional fireplace with a clean, unlined chimney. I'm open to using an insert, but because the fireplace and the living room are both small, I wonder if a smarter plan would be to put the stove in the basement.

Here's the proposal: I have an ash pit in the basement below my fireplace that measures about 20" front to back. I have lots of room in the basement, so why not run the chimney into the ash pit, up through the "floor" of the fireplace, and on up through the existing chimney? I would use 6" SS flex liner where a rigid material didn't make sense, and insulate with either vermiculite or a pre-fab insulation kit from the liner supplier.

This way I can use whatever size or style of stove I want. I would have to build a false wall of some sort inside the fireplace firebox (perhaps brick), I know, but are there other code issues I should be aware of? I attached a sketch of my idea and the fireplace, so let me know what you think.
 

Attachments

  • IMG_20160826_204109758.jpg
    IMG_20160826_204109758.jpg
    109.8 KB · Views: 154
  • IMG_20160829_154855008.jpg
    IMG_20160829_154855008.jpg
    64.8 KB · Views: 144
We have done that quite a few times. It is usually for a furnace not a wood stove but it will work fine. Just make sure your basement is insulated well and you will have to brick over the fireplace opening
 
Status
Not open for further replies.