Award-winning OHM office building features one-pipe geothermal system

Geothermal heating and cooling is not new to CM Engineering, which has been applying the technology to its projects for more than 20 years. The firm has incorporated a one-pipe rather than a more typical two-pipe geothermal system into its mechanical designs whenever possible.  The job of installing the one-pipe system at OHM fell to Mike Keeven, owner of Keeven Heating and Cooling, along with his brother Larry.