It was early when I read the article, I got the impression that the 9W was for the furnace version of the thermopile electric generator.
It was early when I read the article, I got the impression that the 9W was for the furnace version of the thermopile electric generator.
PersnickityPenguin@lemm.ee 11 months ago
The larger versions generated 45, 60 and 240 watts. Another source said 500 watts.