Answer:
No. The steam exhausted has neither the pressure(Force) nor the temperature. The steam at inlet is at high pressure say 20-65-?? bar having a temperature of 265-530C. This pressure forces the turbine wheels to rotate and in the process loses pressure and expands. The different stages of turbine wheels are rotated by the steam having less and less pressure and finally after losing its strength(Pressure) it is let out at 0.1 bar. At this stage the roaring lion has been subdued to a country mouse. The Temperature is also around 45C- almost hot water.
Hence this exhaust is condensed back into water and is snt back to boiler to regains strength(Pressure).
Yes this exhaust can be used if such a low temperature can heat up the rooms.