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The #1 Software Suite for Geo Design

Ground Loop Design (GLD) 2014 Edition is the leading software suite for designing geothermal ground source heat pump systems. Used in more than 60 countries, GLD is the tool of choice for leading engineering and design firms.

{ Unsurpassed Power }

Design power ensures that the system is properly sized and offers efficient operational performance.

{ Exceptional Control }

With GLD, you have total control to customize and modify vertical, horizontal and surface water systems.

{ Accelerated Optimization }

Design, iterate and optimize in only a few minutes. Conduct a LCC analysis and then you're done.

{ Testimonials }

"GLD is an excellent package with just the right balance of flexibility, robustness, speed and accuracy.."

{ What's New }

GLD2014, our 8th generation product, is now available. It's an amazing engineering toolbox.

{ Free Trial }

. Explore. Enjoy. If you have any questions call or email us. Our technical support staff is here to help.