Ground Source Heat Pumps

From the outset, the Warmflow Zeno ground source heat pump was conceived to be one of the most efficient appliances in its class.

All Warmflow Zeno ground source products are compatible with our range of specially designed heat pump cylinders.

Why Ground Source Heat Pumps?

Cheapest form of home heating

Our Ground Source has a high efficiency of 508%. A heat pump can keep your home at a constant ambient temperature 24/7 for less than the cost of running with fossil fuels due to lower flow temperatures.

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Low maintenance

A yearly system check is recommended by your installer or qualified person. This will involve cleaning filters and checking system pressures to ensure the optimum performance of your heat pump.

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One energy bill

Just one electric bill for the whole dwelling, which includes lighting, appliances, heating and hot water.

Environmentally friendly
Environmentally friendly

No harmful emissions to the environment.

Quiet operation
Quiet operation

When running, the heat pump has a sound operation of 55dBa at 1m.

High efficency
Energy efficiency

Runs at an output of up to 18kW on single phase electricity with a Copeland inverter driven compressor to maximise energy efficiency

Ground Source Key Points

  • Variable speed inverter driven compressor Low noise, high efficiency scroll compressor; the heart of the system.

  • User-friendly interface Covering all aspects of heat pump and system control; the brain of the system.

  • Variable speed, high efficiency pumps Fully integrated, variable speed high efficiency pumps for brine and heating circuits, modulate flow to match heating demand and overcome hydraulic resistance whilst maintaining peak efficiency.

  • Electronic controlled expansion valve Optimising system efficiency by allowing the heat pump to run at a range of flow temperatures and capacities.

  • Plate heat exchangers with large surface area Maximising the heat extracted from the ground and the heat supplied to the property.


Model GS03
Model GS03
Output 4.5~18 kW
Width (mm) 590
Depth (mm) 660
Height (mm) 890
Refrigerant Type R410A

Discover more download our brochure

Our brochures are in .pdf format and available to read digitally, if you would like a printed copy please don't hesitate to get in touch with our friendly customer service team.