Thermia Ground Source Heat Pumps

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Efficiency, convenience and reliability

G round source heat pumps retrieve the solar energy found in the ground via pipe that is buried under your plot. At a depth of approximately one metre the pipe is coiled around your plot and the energy is then received from the ground.


  • No drilling needed
  • Lower installation costs
  • The pipe in the ground maintains an even temperature throughout the year

T hermia has developed a number of technologies such as TWS (tap water stratification), HGW (hot gas water heater) and opti (automatic variable speed controlled circulation pumps), to contribute to increased annual efficiencies, comfort and reliability.

Elegant Geothermal Heat pumps

What's in it for you?

Minimum Energy Consumption
All Danfoss heat pumps have been designed to produce heating. The incorporate high quality components, refrigerant circuit and control system that are designed to ensure on of the best seasonal performances on the market. Scroll compressors have fewer moving parts than conventional compressors, which increase their lifetime and reduce sound level. The controller in a Danfoss heat pump is designed specifically for the purpose of controlling a heat pump. Opti technology and control strategy enables the highest possible heating comfort at the lowest possible running cost.
Hot water comfort
The new patented HGW (Hot Gas Water heater) technology increases the annual efficiency of the hot water production by about 20%. Domestic hot water can be produced simultaneously with the heat production, providing plenty of hot water during heating season at a very low cost. The integrated TWS (tap water stratification) technology provides 15% more hot water than conventional water heaters. The large surface area and orientation of the TWS coil ensure a plentiful supply of hot water.
Ready to install
Ready to run delivery, heat pumps including adequately sized filter-ball, filling device and flexible hoses, all in the right quality. Heat pump prepared for cooling functionality so no further control devices are needed to run either passive or active cooling. Heat pumps delivered as a complete heating system, e.g. circulation pumps, auxiliary heater, soft starter, control unit all included in the heat pump - tested and approved to meet the high quality requirements.
Low cost air conditioning
Enjoy low-cost air conditioning in warm months. A Danfoss heat pump is able to provide a comfortable indoor climate all year round. Heat is produced during the cold seasons, and you can choose to have cooling during the warmer months. With all ground source heat pumps it is possible to cool the building. Passive cooling only uses the power of the collector circulation pump (between 200 and 600 Watts) to effectively create a comfortable indoor climate. Should extra cooling be required, Active cooling can be used. Active cooling uses the compressor to lower the temperature of the coolant. A combined heating cooling system can be more efficient than alternative systems on the market that use separate cooling units.

Thermia dometic ground source heat pump range

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