The Project consists of removal of existing steam and condensate piping along with existing domestic hot water heat exchanger and cast iron steam radiators located on the basement, first, second and third floors of F-Building. Existing steam baseboard radiation on the first, second and third floors of F-Building will remain as indicated in the project documents. Existing high pressure steam piping from E-Building will be replaced with new high pressure steam piping to serve a redundant pair of steam-HW heat exchangers for building heating. The new high pressure steam piping will also serve one steam-DHW heat exchanger for domestic hot water. New hot water piping mains will rise up from the basement to serve the first, second and third floors. The basement will be heated with new hydronic unit heaters in lieu of the existing steam radiators. Existing pneumatic thermostats and control valves will be removed and replaced with new equipment tied into the existing pneumatic lines. New baseboard radiation will be provided to replace the steam cast iron radiators that will be removed.