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Best soot removal method.

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kcopp
kcopp Member Posts: 4,448
In your experience what is the most effective way to remove from the side of a home. Cement/ Hardie type siding. I have a house where the appliance got fouled thereby sooting up the outside of the siding. I would not want to just start spraying water, detergent etc. w/o a solid plan. TIA

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  • Mad Dog_2
    Mad Dog_2 Member Posts: 7,245
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    You want to remove the soot, right?  I'd try warm water and MEX first. Mad Dog
    kcopp
  • kcopp
    kcopp Member Posts: 4,448
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    Thanks
  • clammy
    clammy Member Posts: 3,114
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    Have your tried spray 9 ,I ve had good luck cleaning all sorts of soot and dirt and nasty boiler mud works pretty well and a great tough grease cutter also a disinfectant .
    R.A. Calmbacher L.L.C. HVAC
    NJ Master HVAC Lic.
    Mahwah, NJ
    Specializing in steam and hydronic heating
    kcoppMad Dog_2
  • kcopp
    kcopp Member Posts: 4,448
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    hmmm. Never heard of Spray 9. I will look into it...
  • Mad Dog_2
    Mad Dog_2 Member Posts: 7,245
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    Me neither. You guys ever heard of ZEP-45? Used it 35 years ago. It was MUCH better than WD-40, but had all kinds of warnings on the can..."banned in California...blah blah." Probably banned now or watered down version. Mad Dog
    kcopp
  • Solid_Fuel_Man
    Solid_Fuel_Man Member Posts: 2,646
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    TSP with warm water. 
    Serving Northern Maine HVAC & Controls. I burn wood, it smells good!
  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 8,167
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    Sometimes there is just no way to get it perfectly clean again. The next best thing is to paint over it. BUT THAT DON'T ALWAYS WORK. If you do need to go that way, use KILZ oil based paint to seal the surface otherwise the carbon will migrate thru the paint.

    Ask me how I know!

    Edward Young Retired

    After you make that expensive repair and you still have the same problem, What will you check next?