Pec and heating

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Pec and heating
Author: Jimmbo (NY) My buddy ran out a zone of 3/4 pex with regular h & c pex. The job is done.... Is it crucial to have the aluminum inner core pex installed for a heating zone ? Will this damage the boiler ? thanks
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Re: Pec and heating
Author: Paul48 (CT) They put a coating on the outside of HePex. It stops oxygen permeation, which will ruin a cast iron or steel boiler.
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Re: Pec and heating
Author: Jimmbo (NY) Would you say it all should be changed ? How long would you say it would ruin a boiler,not sure cast or steel
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Re: Pec and heating
Author: Paul48 (CT) You need to know what type of boiler it is. No one can say how long it will take, but it will substantially shorten the life of the boiler. I'd replace it, or if it was major work, I'd get a flat plate heat exchanger and use that to isolate the boiler from that zone.
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Thanks so much
Author: Jimmbo (NY) Thanks so much....he can probably replace a majority of it 80% anyway....that should help I would guess Edited 2 times.
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Re: Pec and heating
Author: packy (MA) replace as much as you can. therre are additives that can slow the corrosion factor. they won't stop it but they will help. look up boiler water treatment or conditioner.
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