Issue description:

disclaimer: not on the latest version but dont know if its a bug or not

have an almost maximum size boiler 17x18x17 with 675 super coolers in at the bottom, and a layer of pressure dispersers on the 16th level of the boiler, feeding it heat from a resistive heater that is being fed up to 8.7MRF/t (i have 3 fusion reactors powering it) and if i put in say a 2MRF/t input to the resistive heater it goes up to ~78.5kK but the boiler stays at 100°C (373.15K) and only has a max boil rate of 49617mb/t which seems incredibly low having seen the maximum boil rate of the boiler in this video so I'm just wondering if im not exactly understanding how it works or if somethings changed in the config that i didnt see or what?

also just noticed that when i disconnect the conductive heat thing and reconnect it the max boil rate seems to start very high and then settle to the value in the screenshot

edit: also this doesn't really make any sense to me as i feel like a boiler powered by 3 fusion reactors all on 98 injection rate should give enough steam to allow the turbine its feeding to produce more than the reactors are producing, even if i put the resistive heater at 8.7MRF/t its still only a 213629mb/t max boil rate which isnt that much and only lets my turbine produce 6.1MRF/t

Version (make sure you are on the latest version before reporting):

**Forge: 14.23.5.2854
**Mekanism: 9.8.3.390
**Other relevant version: Minecraft version 1.12.2

You'd likely be better off using the reactor itself to produce steam (feed it water).

As for the Boiler's steam production:

• That video is from 1.7.10 so numbers may have changed since then
• You need to have enough Boiler steam tank capacity to handle large volumes of steam
• Thermodynamic conductors are extremely lossy, and not worth it when you've just got the one heater
• I'm not intimately familiar with the internal calculations, but heating water transfers the energy to the water, so it's feasible that at the point of measurement it is only 100c
• You could just pipe the heat straight from the reactors via a reactor port

Also, even if it is a bug, we no longer support 1.12 so it won't be fixed, and the Boiler has changed drastically in later versions.