System design
Assistance with heat pump system design and sizing for every installation.
Explore system design
Manufacturers & brand partners
The brands behind every Thermal Earth system.
Two primary heat-pump partners, five complete-system brands and one team that designs, supplies and supports them as a single system — with trade pricing across 2,700+ products, parts and spares.
4,000+ systems installed
20+ years' experience
UK technical support
Primary heat-pump partner
MasterTherm — ground, water and air source.
MasterTherm has manufactured technologically advanced ground source and air source heat pumps for more than two decades, with installations across the UK and Europe.
Every unit ships with smart controls and online connectivity, so installers and the manufacturer can monitor and support systems remotely.
Primary heat-pump partner
Ariston — residential air source heating.
Ariston is a global specialist in heating with an extensive range of energy-conscious products, and has developed heat pumps since launching its range in 2000.
The Nimbus air source range gives homeowners and installers a strong route for suitable residential projects, backed by our stock and technical support.
Complete-system partners
A complete system needs more than a heat pump.
Controls, hydraulic components, cylinders, source-side equipment and heat distribution all shape how the finished system performs. These are the brands we stock and support alongside the heat pumps.
MultiQ
Altecnic
Hydronic components and valves from the Caleffi group.
Belimo
Actuators, control valves and sensors for system control.
MultiQ
Source-side energy collection equipment for water and ambient systems.
Joule
Cylinders and hot-water storage.
REHAU
Polymer pipework systems for ground loops, distribution and underfloor heating.
ACOND is also available as a secondary heat-pump option where its equipment suits the project. Browse the shop.
How to order
Get the products your installation needs.
Trade credit account
Order against your account with trade pricing — no upfront payment per transaction.
Open a trade account
Beyond products
Services for installers.
Borehole drilling
In-house borehole drilling for ground source installations.
Explore borehole drillingMCS support
Install under our MCS certification with commissioning and documentation support.
Explore the partner programmeReady to place an order?
Browse the full product range online, or speak to the team for advice on the best equipment for your project.