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What is GLD Online? Ground Loop Design (GLD) Online is the premier online software program for designing geothermal ground heat exchangers. See more information here.
Is it really FREE? Yes. For the time being, it is free. To start using it all you have to do is sign up for an account here.
Want more design power? Download and try our full residential and commercial design suites here. How do I get started? Sign up for an account here, accept the license
agreement and then you can begin designing.