Click here to download - Compare_ASME_vs_EN-303-5_boiler_standards.PDF_089POb.PDF

This is an article prepared by BioHeat USA as part of their effort to remove the Mass. State Board of Boiler Rules restriction that wood gasification boilers sold in the state have to have an ASME aproval stamp, which is not worth while for the European mfg. boilers which are made to the European EN 303-5 standard, which in many ways is stricter.

This was written as a comparison between the standards, in relatively layman friendly terms, and in addition to it’s value as a comparison, is also most informative about the things that are done to make a safe boiler.