Sorry for not being able to respond for some time
Aldorn, thanks for posting that! I would never feel offended by anyone using my ideas, on the contrary: The more, the merrier!
I have to test your version right away! Shall I provide a link to your mod on my mod versions website?
Arthanor: I frankly don't know, my guess is that the default flame damage is spread all over the area, whereas my weapons concentrate it in one spot.
And yes, lowering the INC resistance of the armors is the only way that works, I did that for a personal mod, too.
niculinux: Do you like the version from Aldorn better? If yes it would free me from the task of making them again
Oh and just to mention it again: All my mods and files are free to use for any purpose you see fit.