In the late 1940s, 28- year-old Ed Malzahn applied a combination of knowledge from his father’s blacksmith business and his degree in mechanical engineering to produce a machine that would revolutionize the underground construction industry as we know it today.
Surrounded by serene lakes and winding rivers is Lindsay, Ontario, home to a very advanced and unique drilling school: Fleming College’s Resources Drilling and Blasting program. It is the only program of its kind in the world, offering an impressive combination of technical training and hands-on experience in all sectors of the drilling industry.
A leading and long-established well drilling firm in northern New Jersey found that working with a completely new ground loop heat exchanger called “Twister,” an innovative option for use in heat pump systems, required significantly less time and effort to get the job done and resulted in savings of up to about 25 percent in cost.
The geothermal heat pump (GHP) industry prides itself on offering an efficient, environmentally friendly technology for satisfying the thermal loads of buildings. To do so, a GHP system relies on circulating water through pipes placed underground (either vertically or horizontally) to tap the natural heat retained by the earth.
As discussed in last month’s article “Proper Grouting Protects Your Loop, Safeguards Groundwater,” grouting a geothermal borehole serves three vital purposes: to seal the hole/protect the ground loop, to protect groundwater from possible contamination and to improve thermal conductivity.
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