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​ANSI Z21.47, Gas-Fired Central Furnaces, eliminates use of ABS and PVC Cellular/Foam Core products

The 2021 edition of American National Standard ANSI Z21.47, Gas-Fired Central Furnaces, which went into effect on December 1, 2022, eliminates the use of ABS and PVC Cellular/Foam Core products for flue venting systems.

See related technical bulletins from Carrier and Daikin below.
carrier_technical_bulletin_removal_of_celllularfoan_core_piping_approval.pdf
File Size: 399 kb
File Type: pdf
Download File

tsb_c-gn-fn-0024_eliminate_abs__pvc_cellular_core_piping_on_90__furnaces16.pdf
File Size: 169 kb
File Type: pdf
Download File

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