So you miss out the steel one and go straight for even higher-tier. Not in that position yet as I was thinking of going for a steel boiler to provide enough 'quick' steam to power the EBF at a decent rate. But maybe I just stick with bronze for now. Hmm.
As I described earlier, I also skipped GT Boilers until the Titanium version that I just finished building yesterday. I used 16 HP Lava Boilers for all my steam production up until this point. I have one HV feed running off 16 LV Steam Turbines, as well as one MV Steam Turbine to run my EBF, and finally I have 4 LV Steam Turbines to run my 4-amp LV processing machine setup (4x tin cable with 4-battery buffer boxes at intervals along the power cable). I've build just about every LV machine available in GT now, something like 30 machines.
The only caveat to this 16 HP Lava Boiler setup is that I can only run one feed at a time. Either I can run my HV feed in short bursts, or I can run my EBF, or I can run 4 of my LV processing machines at once. Since 17 boilers are required to keep up with one MV Steam Turbine, my 16 boilers ran at a slight "steam deficit", and my Steam Tank level would slowly drop while the EBF was running, but it was a very managable drop, taking a few hours before the tank emptied completely. All I had to do was stop the EBF for 5 mins and the tank was re-filled, then re-start the EBF for another 2 hour run. Worked out very well indeed for early game. But it is finally time to step my steam game up a bit and get out of LV era entirely.