Home>Discussions>INSULATION & HVAC>Reline chimney with stainless steel liner?
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Carl D. Birman
Reline chimney with stainless steel liner?

We just bought our 1920's vintage house last year and recently had two chimney inspectors check out our inside-the-house brick chimney for safety issues. This brick chimney has pipes/flues for a working fireplace on the main floor and for an oil furnace and a gas heat boiler in the basement. Both inspectors recommend relining the pipes/flues from the basement chimney with stainless steel chimney lining system with stainless raincap and T-connector. Job would include jackhammer base to house t-connection. Estimate cost over $2000.00 for the 35-foot job. Both inspectors (competitors of course) say this is necessary because the chimney never should have had the furnace and boiler smoke thru it because the original clay pipe liner for the boiler and the furnace are old and damaged. They say there is a serious danger of carbon monoxide leakage into house and that the clay pipe liner is over 90% corroded. Are these guys just scaring us or do we have an emergency need for repair this winter?

Blue RidgeParkway
Re: Reline chimney with stainless steel liner?

An oil furnace and a gas boiler should not be sharing the same flue; neither appliance should be sharing the same chimney chase as a wood burning fireplace.

I suspect there is more than a simple stainless steel liner involved for example b-vent, etc. you provide no information regarding the BTUs for either heating appliance, exhaust temperatures (i.e. condensing boiler, efficiency, etc.) size of the chimney chase, your location, etc. No one could devine the specifications required from your description.

If you want an independant inspection and opinion from a disinterested (not doing the work) opinion you might contact a certified chimney inspector to do a full and complete inspection (and written report) and coinside that with a proper pre-work cleaning a certified inspection and chimney sweep service could do that for you. You can ask them to outline what (and from what you describe there will be) remedial actions and specifics are recommended.

Sometimes your local fire inspector or fire department, or building department can also advise you. Your professional resources for inspecting, cleaning, tuning your oil furnace and your gas boiler should be able to further advise you regarding the exaust venting requirements, draw, etc. for your appliances.

Bottom line two independant entities competitors no less have quoted you identical dangers, warnings, and price quotations for immediate safe remediation and I presume you are already in the heating season mode. Both have warned you of an unsafe condition, it would seem that time is of the essence! At the very least I do hope you have loads of fresh, newly acquired carbon monoxide detectors with working battery backups sprinkled throughout your home.

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