You don’t put much more steel into a transformer than is required for correct operation.
That would be economic insanity.
It was designed and wound for 110V.
The same amount of metal would also be fine at 240V with at least double the turns on the primary winding. Which is why Weller make just such a thing.
He’s milking his idiot mistake for everything that he can get, possibly even created it just to generate revenue.
I always thought he was a gobby self-important uneducated potty-mouthed f’witt, with an irritating manner, to whom I took an instant dislike, now I am even more sure.
But here we all are, still discussing the tw@t’s latest bilge.
How clever does that make us ? Best ignored.
If he took up Weller’s offer of a 240V iron, he might actually have to do a decent review, and declare it good, and eat his words, and appear even more foolish. But that’s not what he likes to do, hence his disgraceful ranting, name-calling, character assassination attempts, etc. A hateful, horrible, spiteful man, behind all the jocular bonhomie.
If you can bare to watch his channel, you will detect a theme where he basically rubbishes everything that he reviews, finds fault, explains his superior knowledge, how if he was in charge of design it would have been done so much better, etc. Subtly, with back-handed “complements” but the snide comments are always there. Nothing is ever good enough for him, and he always knows best.
I can’t imagine why any manufacturer would still send him free stuff for review, but it seems some still do.