alec.k @alec.k Not recently active ActivityProfileFriends 0Groups 0Ad 0Blog 0Forums Topics StartedReplies CreatedEngagementsFavourites Search replies: Forum Replies Created Viewing 1 post (of 1 total) Author Posts January 27, 2018 at 12:53 pm #1313 alec.kSpectator Surely, different gases would also have and effect (thinking helium derviatives)..and also the polarity i.e 2/3rds heat generated at the positive pole. So i imagine that the efficiency factor is not such an easy answer Author Posts Viewing 1 post (of 1 total)