Need Help Estimating?

You must select the type of pipe through opening.
You must enter a valid pipe diameter in millimetres.
You must enter a valid paircoil tube + insulation in millimetres.
You must enter a valid hole diameter in millimetres.
You must enter a valid fill depth in millimetres.
You must enter a valid number of penetrations.
Results
This calculator provides an estimate only. For technical advice and system limitations please refer to the technical manuals first.