The Robur GAHP-W water cooled Absorption Heat Pump is a gas unit providing simultaneously hot water up to 65 °C and chilled water down to 7 °C. The absorption cycle of the Robor GAHP-W is water cooled on both condenser/absorber side and evaporator side, and recovering low temperature heat from water sources (lakes, rivers, ponds, etc.) or ground sources it reaches heating gas efficiencies up to above 150%.

The Robur GAHP-W unit makes a wide variety of convenient applications available, for example:

• suitable for hotels, hospitals, resorts and spas where consume the central hot water system about 30 cubic meters per day or have more than 80 rooms;
  
• low temperature heating systems, where there are available renewable energy sources as lake water, river water or ground water;
  
• heating systems recovering heating from heat sources with low/medium temperature (from -2 °C up to 45 °C).

Depending upon needs. Robor GAHP-W can be used in the following way:

• heating only with heat recovery from a cold source;
  
• simultaneous or alternative heating and cooling;

Robur GAHP-W Gas Fired Absorption Heat Pump is available in two different versions:

• GAHP-W (Water-Water) This version is designed to recovery heat from water sources and to be used when heating and cooling is required simultaneously. This version can produce hot water up to 65 °C and chilled water down to 7 °C.
  
• GAHP-W-LB (Ground-Water) This version is designed to recovery heat from the ground. The ground heat can be recovered by using the geothermal - closed loop - system. This ground version can produce chilled water down to -5 °C and hot water up to 60 °C.
  

They have already installed Robur GAHP-W;
	Rayavadee Krabi, Thailand A unit of GAHP-W supplies hot water and chilled water for 77 rooms