How big are the trenches for ground source heat pumps?

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How big are the trenches for ground source heat pumps?

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The quantity of trenches and ground collectors required are dependent on the size of the system. For dimensioning the required installation area, generally the following rule of thumb applies: Heating capacity of the heat pump (kW) x 10m. Individual pipes should be buried at a depth of about 1 to 2 metres and spaced about a metre apart.

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