e, or use the computed values THERMOS estimates.</dd>
<dt>Pipe cost</dt><dd>The cost of the pipe itself, per metre flow/return pair. This is the minimum cost that the model will pay for pipework.</dd>
<dt>Civil cost</dt><dd><p>
To the right are multiple civil cost columns. These cover the cost of digging a hole for pipework to go in, for a given diameter, depending on the surface or any other local factors.
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You can add more of these with the <b>Add civil costs</b> button below, and you can set whi