Week 4, Day 3:

• Completing the removal of the excess soil from around the foundations.
• Moving some of the concrete blocks into position near the foundations ready for installation.
• Insulating the GSHP pipes where they start running closer together under the house (to help prevent the water coming from the ground loops being chilled by the flow from the house).
• Delivery of the four rolled steel columns which will bolt to the foundation concrete and help support the south side of the house.
• More clearing of the rubble around the old outbuildings.

Week 4, Day 3

Blocks stacked ready for installation

Insulation around 50mm GSHP pipes

Week 4, Day 2:

• More progress removing soil from around the foundations, down to the level required for the concrete ‘oversite’.
• Connecting the GSHP collector pipes together at the manifold chamber.
• Digging a trench for the GSHP pipe tails to cross under the house and running them from the manifold to a location under the utility room.

Week 4, Day 2

32mm GSHP collector pipes connecting to the manifold enclosure which contains filling connectors and balancing valves. The upper collector pipes are the ones which run straight along the inside edge of each trench and carry the flow to the house; the lower ones are the slinky loops. All pipe joints outside the manifold chamber are made using electrofusion connectors.

Close-up of electrofusion connectors on GSHP collector pipes

Inside the manifold chamber, before installation (from the other side)