www.pmmag.com/articles/99376-using-air-conditioners-to-heat-buildings

Using air conditioners to heat buildings?

June 29, 2012
Excess heat from a data center’s air-conditioning system is used to heat water.

Read how a French business park uses excess heat from a data center’s air-conditioning system to heat water and distribute it to hydronic heating systems within the park. According to the system’s creator, French energy company Dalkia, the system heats about 6 million sq. ft. of office space.