Hey,
I downloaded Your mod, however electric boiler MK 1 has strange name ingame, as it's called:
- " unknown key:"entity-name.electric-boiler-mk1" "
Same thing with electric boiler variants and tech tree name.
Tested on Factorio 0.17.34
Is there a chance that, You would look into that?

its because i didn t do the locale file right or i forgot to do it
it shouldn't affect to in game performances
im not that good with that sort of file but i can try to fix it

done

I just found and downloaded this mod a few days ago (if not yesterday, memory's terrible) and it would seem the problem came back with the latest update, all 4 of the boilers from this mod show up similarly "unknown key:entity-name.electric-boilerX" and just wanted to give a heads up on that note seeing as how you have apparently fixed this once before.