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How deep are the trenches for a horizontal loop?

Deep horizontal loop trenches
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How deep are the trenches for a horizontal loop?

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Trenches are normally 6 to 15 feet deep and up to 400 feet long, depending on the number of pipes in a trench. One advantage of a horizontal loop system is being able to lay the trenches according to the shape of the land. As a rule of thumb, 500-600 feet of pipe is required per ton of system capacity. A well-insulated 2,000-square-foot home would need about a three-ton system with 1,500-1,800 feet of pipe.

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