PowerGuide

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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1
NIBE

NIBE S1255

6kW

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

4.5 ~£22,000
View specs & review
2
Kensa

Kensa Shoebox NG

6kW

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

4.4 ~£20,000
View specs & review