In message <013e01cb8dc6$41b038a0$4001a...@lark>, "Alan Melia" writes:
>I believe there is a reflective/foam insulator that is sold for setting >behind (what we in UK call ) CH radiators when the are mounted on outer >walls. That would meed Poul-Henning's temperature difference criteria, I >think. Interesting topic may me revise some 50 year old very rusty physics Not only does it meet my criteria, I've used "airflex" for exactly that myself, and proven that it works with a thermal camera: http://ing.dk/artikel/96840-airflex-bag-radiatorer -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.