Why is the information in Annex E, on recommended chimney lining criteria not a mandatory part of NFPA 31?
As described in Section E.7 of this Annex, the information presented is the product of computer analyses of typical systems. Validation of the computer program used for the analyses still needs to be done before the Technical Committee on Liquid Fuel Burning Equipment will make the criteria mandatory.
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- Why is the information in Annex E, on recommended chimney lining criteria not a mandatory part of NFPA 31?
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