Hi, 2018-02-08 23:27 GMT+01:00 marc marc <marc_marc_...@hotmail.com>:
> > in this case, steam is also not a substance :-) > if you want to be a purist about words, it should be > substance=water or air (or oil although I don't know any of them) > usage=heat_transfer > and for substance=water, state=liquid or steam/gas > Steam sounds more like a substance than heat (water in a precise state). usage=* shouldn't overlap substance=* with values like *heat_*transfer, there is usage=transmission already. I don't really like substance + state, but it's only my point of view and I understand the logic. Pieter, substance=hot_heat isn't so great. substance=hot_water sounds better don't you ? Regarding the wiki page, it's appreciable you make the effort to document tagging and ideas, proposal or not François
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