Thanks for following the second part of the ground coupled heat pump design. If you haven’t already, now’s a good time to go back and read Part 1. In the first part of this post, we discussed the importance of understanding thermal imbalance in a ground source heat pump system and the longevity impacts associated with an imbalanced system. Despite the issues associated with a thermally imbalanced system, there are ways to address building loads with additional technology that will further enhance the performance of the ground-coupled heat pump system, as well as provide long term performance.
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For eons, humans have used thick, thermally massive walls to store the heat of the day and to warm their homes at night. Due to America’s persistent dependence on fossil fuels, passive solar walls enjoyed brief mainstream popularity during the fuel crises of the mid-20th century, and residences across the country benefited from reliable, renewable heat. As gas prices declined, so did homeowner and developer enthusiasm for these low-energy systems. As we face a massive climate change calamity and most residential heating systems today are still served by volatile fossil fuels, it is time we revisit and incorporate passive solar technologies into our new buildings and renovations.