The Timeless Reliability of Copper Earth Loops: A Case Study from 1950 to 2009

| October 2, 2024

In 1950, Mr. Bill Loosley made a pioneering decision that would revolutionize the way we think about home heating and cooling. He installed a Direct Exchange (DX) Geothermal System in his home in Burlington, ON, setting the stage for decades of reliable performance and energy efficiency.

Remarkably, when revisited in 2009, Mr. Loosley’s geothermal system was still running smoothly, a testament to the enduring reliability of copper earth loops. Originally powered by a diesel motor to drive the belt-driven compressor, the system evolved over the years, eventually transitioning to an electric motor while maintaining its operational integrity.

The secret to its longevity lies in its innovative design. The system utilizes copper pipes buried in the yard, through which refrigerant liquid is pumped directly by the compressor. This direct exchange system not only ensures efficient heating but also provides a portion of the home’s domestic hot water through a desuperheater connected to the hot water storage tank.

Despite the passage of time and advancements in technology, Mr. Loosley’s geothermal system stands as a testament to the enduring reliability and effectiveness of copper earth loops. As we continue to embrace sustainable heating and cooling solutions, this remarkable case study serves as a reminder of the enduring value and longevity offered by copper-based geothermal systems.