If you've got a water well full of cool water, you can take advantage of that coolness to build a heat exchanger to air condition your home. DIY site Instructables details how to turn some copper pipe ...
In a December 2014 Plumbing & Mechanical Hydronics Workshop column, we discussed the benefits of dual-fuel systems that combine a geothermal water-to-water heat pump with a mod/con boiler. The boiler ...
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