Best Ground Source Heat Pumps (2026)

We rank ground source heat pumps on the specs that matter, value for money and reliability. Here's where we'd put our money this year.

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No. 1

NIBE · 6kW

A premium Swedish ground-source system with one of the highest SCOPs available and excellent smart controls.

A4.5 ~£22,000

No. 2

Kensa · 6kW

A compact British ground-source unit ideal for flats and terraces on shared ground arrays — very high, stable efficiency and near-silent indoors.

B4.4 ~£20,000