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Robur GAHP are environmental friendly

using natural gas + renewable energy sources(1)


Each Robur gas absorption heat pump:

• for each kW of natural equivalent used, every unit adds 0.5 kW of free renewable energy.

• 9,927(2) GAHPs already installed save every year 15,098 TOE (Tons of Oil Equivalent) and the emissions of 39,613 Tons of CO2 emitted by 18,872 green cars or absorbed by 5,631,898 trees.

• Using a natural refrigerant with GWP (Global Warming Potential)=0, the GAHP technology is the best solution to the problem of global warming.


Back to Reasons for a choice


(1) GAHPs, using up to 40% renewable energy (air, water, ground) are recognized by RES (Renewable Energy Source) Directive.
(2) Updated on August 31st, 2014.


Efficiency and use of renewable energy in heat pumps

A heat pump is an appliance capable of exploiting the large amount of energy available in natural sources at a lower temperature and of tranferring it in the form of useful heat to a user at a higher temperature. Electric heat pumps work with a compressor powered by electricity. Absorption heat pumps are powered directly by natural gas or LPG with a very minor electrical consumption.
The advantage is high heating efficiency, due to the fact that main energy input (natural gas) is primary energy and not electricity, which is generated with low efficiencies (40% on average).
In Fig. A, energy balances are shown between electric heat pumps and Robur absorption heat pumps. The energy balance based on primary energy highlights the higher efficiency of Robur gas absorption heat pumps in comparison to the electricalones (COP of 3.8). In spite of seemingly higher use of renewable energy by electric heat pumps, electric power generation requires higher use of primary energy upstream. A Robur gas absorption heat pump, instead, uses primary energy directly (natural gas or LPG).
In fig. B energy balances of Robur gas absorption heat pumps are shown for 3 different types of renewable energy sources: air, water and ground.

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