Free Antifreeze Volume Calculator for Geothermal Loopfields Ryan Carda, P.E. is the author of the International Ground Source Heat Pump’s official design and installation guide. Carda’s Antifreeze Volume Calculator for Geothermal Loopfields free tool is used in his Entry Level Geothermal Professional Certificate Training. Here’s what the tool looks like: Uses:… Continue reading “Free Antifreeze Volume Calculator for Geothermal Loopfields”