TL;DR
Since 2.0.7, 1 water turns into 10 steam, meaning boilers and heat exchangers use 1/10th as much water now, but the amount of water they store has not been updated to match; it should be.What?
Reduce the amount of water boilers and heat exchangers can contain from 200 to 20.Why?
Since boilers and heat exchangers cannot be controlled using circuit networks, there are only three ways to disable them:- Cut off their supply of fuel or heat
- Cut off their water input
- Cut off their steam output
Prior to the steam rework, options 2 and 3 were ~equally viable. A boiler or heat exchanger had equal storage for steam and water (200 units of each) and consumed/produced them at equal rates (60/s for boilers, 103.1/s for heat exchangers); thus cutting off either one would cause the device to shut down promptly (in 3.33s for boilers, <2s for heat exchangers).
Now, however, the water consumption is 1/10th what it used to be, but the amount of water each device can store is unchanged. A boiler cut off from water supply can thus continue to run for over 33s, while a heat exchanger can do so for nearly 20s, effectively making this method of controlling them nonviable.
These devices should have their water storage capacities reduced to restore the old balance and make this method of control viable again.


