Crucible not working?

[Haidaes]

Does anyone else have this issue ?
I put Iron in it, the flames are stocked, and nehtercoal ofc, but it does not turn into steel.

If it helps I have installed:

modloader
modloadermp
mc forge

btw
Redpower (core,wire,logic,lighting)

I even tried reinstalling it, but nothing works :/.

[Stormweaver]

-Changed Steel recipe in Crucible to require Coal Dust and Concentrated Hellfire instead of Nethercoal (this recipe will likely change once again in the future).

[Haidaes]

Man i checked it three times and overlooked that part every single time. Thanks man.

[Stormweaver]

No problem