MasterTherm Ground Source Heat Pump



MasterTherm logo

MasterTherm have been pioneering heat pump technology for over 25 years and are one of the world's leading specialist manufacturers of both air source and ground source heat pumps with inverter technology. At Thermal Earth we're the exclusive UK distributor of MasterTherm and we're here to help homeowners, businesses and installers to implement and benefit from the advanced heating and cooling technology that MasterTherm heat pumps offer. Available in outputs ranging from 1-92kW, MasterTherm heat pumps offer scope to provide excellent efficiency and performance for projects of all sizes. MasterTherm UK heat pumps are MCS accredited by the BBA and are eligible for the Boiler Upgrade Scheme.

Download Brochure Download Specifications


MCS logo BBA logo



why choose mastertherm?


Inverter Icon

Inverter Technology

High performance inverter technology increases system lifespan and achieves excellent efficiencies to reduce energy bills. 

Time of Use Tariff icon

compatible with time of use tariffs

Save up to 35% more on your electricity bill (on top of the already low cost of running a heat pump) thanks to the time of use tariff integration. 

Automatic Optimisation icon

automatic optimisation

MasterTherm heat pumps self-optimise to deliver your preferred temperatures, taking into account outdoor weather and the cost of electricity.

Zone Control Icon

smart zone

   Enhanced control for up to 6 heating circuits out of the box.

Simultaneous Heating and Cooling

Simultaneous heating and cooling

Ideal for process manufacturing, MasterTherm heat pumps can heat one area whilst cooling another and recover heat for other purposes to increase efficiency.

Internet Connected Icon


Each MasterTherm heat pump is internet connected giving you easy control from your browser or smartphone app.


Zone Control Icon


MasterThem heat pumps are equipped with state of the art DC fans. Low noise impellers combined with modulation flow result in minimum airflow and noise disturbance ensuring that MasterTherm are among the quietest on the market.


7 Year Warranty Icon

7 Year

   Benefit from a 7 year warranty as standard as well as lifetime technical support. MasterTherm heat pumps are also MCS approvied so that customers can benefit from the Domestic Renewable Heat Incentive (RHI).




Mastertherm models

BoxAir Air Source Heat Pump


High performance air source heat pump available in outputs of 2-22kW. Commercial units also available.

Learn More 

AquaMaster Fixed Output Ground Source Heat Pump

fixed output

Available in outputs from 7-92kW these fixed output ground source heat pumps are ideal for commercial use.

 Learn More

AquaMaster Inverter Ground Source Heat Pump

aquamaster inverter

Our bestselling ground source heat pump providing exceptional efficiencies in outputs from 1-45kW.

Learn More

AquaMaster Inverter Combi

aquamaster inverter combi

   Ideal for small to mid-sized residential properties thanks to its space-saving integrated hot water tank.

Learn More





Jubilee Pool Case Study

Jubilee Pool,




St Margarets Residences Case Study

St Margarets Residences,




Lake Collector Heat Pump Case Study

Lake Collectors,







Visit the MasterTherm Website:

MasterTherm Website 

Should you have any questions about the MasterTherm Heat Pump range please dont hesitate to: Contact us


To register a commissioning of a MasterTherm Heat Pump or to see further details about MasterTherm Warranty please click Here

Find out about MasterTherm Heat Pump Heat Recovery Applications Here

You can test your connection and ensure cabling is correct by downloading the following guide HERE


Cookie Policy

The Thermal Earth website uses cookies to improve your user experience. If you continue on our website you will be providing your consent to our use of cookies.

Find Out More