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Ground Source Heat Pumps

Ground source heat pump systems draw heat from the stable temperature below ground, giving the highest seasonal efficiency of any heat pump type — and the option of passive cooling at pump-only running cost.

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  1. 01CollectA sealed loop circulates through boreholes, absorbing ground heat.
  2. 02UpgradeThe heat pump lifts that heat to usable flow temperatures.
  3. 03ReverseIn summer the same loop provides passive cooling at pump-only cost.
How it works

Stable ground temperature, year round

Boreholes or horizontal arrays circulate a sealed loop through the ground. The heat pump upgrades that low-grade heat to usable flow temperatures for underfloor heating, hot water and pool duty.

What you gain

  • Highest seasonal efficiency of any heat pump type
  • Passive cooling with no compressor running
  • No visible external plant
  • Long design life on the ground array

What we deliver

  • Heat loss calculations and ground array sizing
  • Borehole drilling coordination and header pit arrangement
  • Heat pump selection, cascade configuration and plant room layout
  • Buffer vessels, DHW cylinders and hydraulic separation
  • Passive cooling circuits and heat exchangers
  • Commissioning, balancing and handover documentation
Ground Source Heat Pumps installation by Solux Renewables

Typically suited to

Large private residences, estates and developments with land available for boreholes, particularly where cooling and pool heating are also required.

Completed work

Vertical ground boreholes

Vertical ground borehole drilling rig operating beside a residential property
Below-ground ground-array manifold chamber and connected pipework
Electrofusion jointing and sensor connections on ground-array pipework
Vertical borehole drilling operation with rig and drill rods
Vertical borehole drilling rig operating across a prepared site
Borehole drilling rig with coiled ground-loop pipe prepared for installation
Completed work

Horizontal ground collectors

Excavated ground area prepared with trenches for horizontal ground collectors
Ground collector pipe connections within an access chamber
Horizontal collector pipework laid across a prepared ground bed
Detailed ground collector header connections inside a chamber
Horizontal collector circuits installed along a prepared excavation
Horizontal ground collector pipework installed beside a contemporary residence
Horizontal collector circuits distributed across a large ground excavation
Ground collector distribution connections arranged inside an access chamber
Completed work

Ground source heat pump plant rooms

Heliotherm ground source heat pump installation with twin control modules and insulated services.
Compact Heliotherm ground source heat pump plant with thermal storage and labelled distribution circuits.
Heliotherm ground source heat pump installation with neatly coordinated copper distribution pipework.
Heliotherm ground source heat pump plant with thermal storage, expansion vessels and labelled circuits.
Ground source heat pump hydraulic installation with buffer storage, circulation pumps and controls.
Compact Heliotherm ground source heat pump installation with thermal stores and expansion vessel.
Pair of Heliotherm heat pump units positioned beside a contemporary property.
Heliotherm heat pump unit installed on a prepared external plinth.
Ground source heat pump hydraulic module with plate heat exchanger, pumps and thermal storage.
Multi-unit ground source heat pump plant room with thermal stores and coordinated pipework.
High-capacity ground source plant arrangement with insulated hydraulic distribution.· Concept visual
Cascaded ground source plant concept with thermal stores and coordinated headers.· Concept visual
How we work

Design to commissioning, one accountable contract

  1. 01

    Design

    Heat loss and load calculations, system selection, plant room layout and coordination with the architect and structural team.

  2. 02

    Specification

    Equipment selection, schematics, pipework and duct routing, and a costed mechanical package.

  3. 03

    Installation

    First fix through second fix by our own engineers, sequenced with the main contractor's programme.

  4. 04

    Commissioning

    Balancing, flow rates, controls setup, F-Gas checks and performance verification across every system.

  5. 05

    Handover & Support

    O&M documentation, client demonstration, and ongoing servicing and maintenance.

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