Description of the Bug
The liquid fueled boiler can hold unlimited water

To Reproduce

1. Create a liquid fueled boiler of maximum size (9 fireboxes, 36 HP boiler tanks)
2. Connect an infinite water source to the base of the boiler. (I used the aqueous accumulator from thermal expansion)

Expected behavior
The boiler's water tank says it's limited to holding 4000 mb of water, but instead of capping out at 4000 mb, the boiler filled up past that. there does not seem to be a limit on its capacity

Screenshots & Video

Logs & Environment
Bug does not crash game; no log available

Additional context

See the pinned issue #1567. Thank you!