Oil to Gas conversion. Can I keep the old stainless chimney liner?

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jgvasa
jgvasa Posts: 27
in Chimneys & Flues

I’m in the process of replacing my old 1990’s Vaillant oil boiler, which has ran terribly and constantly blowing soot, with a gas boiler. I had the chimney lined with a 316ti stainless steel liner several years ago.

Does anyone know if I would need to replace the stainless steel liner with a new liner for gas? Any “hazards” with the old oil exhaust residue mixing with the new gas boiler? I did have the liner cleaned by our chimney sweep, but our installer is recommending it be replaced

Comments

  • EBEBRATT-Ed
    EBEBRATT-Ed Posts: 21,238

    There is no problem using it over if it is in good shape and the right size. I would ask the chimney sweep what he saw. I would think if it was damaged the sweep would have told you.

    mattmia2HVACNUTMad Dog_2
  • mattmia2
    mattmia2 Posts: 18,273

    i would ask why they want to replace it. if the answers aren't one of @EBEBRATT-Ed 's you might want to keep looking.

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