Stirlingengineforum.com

Platinum in form of catalyst (sponge), (as all heavy metals in form that can be dispersed), is toxic, and a bit expensive.

thanks for sharing this topic.
biobank

Also it(platinum) does not work too well, its been tried by Whispertec when they were developing the Whispergen power unit. Stainless steel is much more effective, either foil, wire, or gauze.

if you look a Dr Allan organs web site he has plans for a 1000w engine which you can buy.

http://web.me.com/allan.j.o/Communicabl ... lcome.html