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Using diluted muriatic acid in the home




My 100 year old brick chimney has dripped creosote down onto the supporting 2x4 and 2x6 wood below it, as well as through the (1x4 boards covered with 2 layers of sheetrock) walls. We have removed the sheetrock and the 1x4s on the walls and are looking at the creosote covered framework holding the weight of the chimney. One man told me to mix muriatic acid [affil links] into water, about 1/2 and 1/2, and to brush the wood with a soft brush. He said this would help the odor a lot. Others have said no, the fumes would eat up the metal in our electronics (TV, stereo) in the room. If I open the doors and windows, would the fumes be harmful? Please help, as I want to rebuild these walls and start using the chimney again, without the overpowering creosote odor. Thank you so much.

Helen Suskie
homemaker (used to be housewife) - Olustee, OK
2006



Muriatic acid is used to clean the grout off of brick but I doubt that it would have much effect on creosote. Is it possible to powerwash without the water ruining wallboard? Besides, you heard right about muriatic acid fumes -- they can ruin everything.

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2006



First of two simultaneous responses -- 2006

Hi Helen,

Ted is right about using Muriatic ...what use would it be when creosote is fairly acid resistant anyhow.

What about a solvent. Something reasonably powerful but not alcohol as I don't think that it is strong enough.
Coming to think of it, why not ask a roofer for some ideas ?

For starters, try some of your nail polish remover... which is acetone [on eBay or Amazon] based, I think.

Were you to use muriatic as was suggested, it wouldn't do much for the odor anyhow ... but if ventilated, I doubt that it would affect your electronics.

freeman newton portrait
Freeman Newton [deceased]
(It is our sad duty to advise that Freeman passed away
April 21, 2012. R.I.P. old friend).




Second of two simultaneous responses --

No, I can't powerwash this, it is the wall between a bedroom and living room, both carpeted. What will dissolve creosote that can be used in the house?

Helen Suskie
- Olustee, Oklahoma
2006



Have you tried wood ash with some water, it may work but never tried.

Cair Shishani
Khair Shishani
aircraft maintenance - Al Ain, UAE
2006




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