• Given the current plans what additional insulation is required to reduce the amount of heat that is generated by the heat pump ?
• Assuming additional insulation is applied, how much electricity will be used to power the heat pump ?
  • This information is an input to the PV requirement
• Is it possible that heat from the Solar heating could be used instead of the ground if the differential between the ground and solar was sufficient ?
• If a wood burning stove was installed, could the system cut out if the heat from this was sufficient ?
• How does this integrate with an existing CH system (Viessmann 200 boiler. Non-vented) so that the boiler only kicks in if there is aneed to supplement the GSHP ?

In summary, this forms part of the “Whole House” approach.