geo thermal

These drillers stopped for a sub in Merritt today and are on their way to Prince George ( a community in the center of the province) to drill two hole geo heat exchange systems to heat commercial buildings. The holes have pvc pipe inserted into them and are welded together 4 feet( below winter frost) in the ground the warm ground water is then exchanged after heating the building. 

Today in history, September 27 1777 

Lancaster Pennsylvania is the US capital for one day.