Heat Pumps
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Air-Source Heat Pumps

Air-water heat pump


Air Source 6 18 Kw



4 kW to 14 kW heating capacity, cascadable up to 56 kW

Space heating, domestic hot water, space cooling.

We are fortunate enough to have the sole distribution rights of one of the world leaders in renewable technologies in the heat-pump division. Waterkotte. Pioneers of renewable technology for over 45 years, focusing on a sustainable and renewable heat sources. With some of the original systems installed over 40 years ago still generating renewable heat today. 

The cleanest and most economical energy is obtained through heat, which is naturally occurring and generated through the ground, air and groundwater. Heat extracted from the atmosphere and ground is converted to a suitable heating temperature via very small amounts of electricity. Approximately 20% of the energy physically obtained. This means 80% of the thermal energy obtained is completely free of charge, and solely generated from nature. 

Unaffected by outside air temperature, the air and the ground heat pumps will work to temperatures of around -15 degrees. Due to the inverter and split design technology of every one of the wattekolle products it allows for complete control of the systems output. 

  • Comfort heat in winter
  • Comfort cooling in summer

The "Inverter-technology" is the key innovation for the development and realization of fail-safe and efficient air heat pumps.

The technical challenge is not to be underestimated, it results from the natural change of temperature of the "heat source" air around 30 degree, sometimes even around up to over 40 degrees, and moving in opposite directions rising the heat requirement of 0 to 100 % of the object which can be heated.


Pxa _bpdj _en _neg  Universal Design Award 2014  SG Ready Hinweis _V2 (1) Ifaward  72_gda _2014_no _white -black