Going Dutch
El Reg recently did an article on servers as radiators.
Maybe a distributed system throughout your building could negate cooling requirements by removing the need for air-con and cheapen the building heating / cooling bill?
Also free up some valuable office real estate.
http://www.theregister.co.uk/2015/03/25/dutch_companies_try_warming_homes_with_cloud_servers/
Network patching and tampering would be a pain though.