The heat pump Versati IV GRS-CQ8.0PD/NHG4-E from the company Gree, has a power of 8 kW and can cover the needs of a house up to 80 m². It is a device that has the ability to extract existing energy from an external space and transfer it to an internal one, providing heating and cooling. In order to heat the space, the heat pump extracts heat from the environment and transfers it to the interior of the house in order to increase the temperature of the indoor space. On the contrary, in order to cool the space, it extracts heat from the interior of the house and releases it into the environment, gradually cooling the space.
It can be connected to single-phase or three-phase power supply, consuming a small percentage of electrical energy from the grid and extracting the remaining energy from the environment. This results in energy and cost savings, as there is no longer a need to purchase oil or wood. The use of electrical energy is only required during the heat pumping stage, not during its transportation. The ratio of energy required for the pump's operation corresponds to approximately 3/4 from the environment and 1/4 from the electrical current. This means, for example, that for every 3 kWh extracted from the environment, in combination with 1 kWh of electrical energy required for its operation, we have a total of 4 kWh of useful thermal energy.
The technology used is air-water, using air as a heat source and water as a medium of transportation. It heats or cools the water, which is then distributed inside the house.
The system is monoblock, meaning that all its individual components (such as the compressor, heat exchanger, fans, etc.) are integrated into a single unit, which is placed in an outdoor area. This offers you ease of installation and direct connection to the water system.
It is considered medium temperature, as the water temperature of the system can reach up to 60 degrees Celsius, and it can be combined and equally efficient with both underfloor heating and fan coils.
The pump can optionally accept a tank to produce hot water for domestic use throughout the year. The tank is not included and must be purchased separately.
Finally, in any case, the proposal for the most suitable heat pump based on the needs is made by an experienced engineer. After studying, they will recommend the appropriate pump that will provide the maximum efficiency with the lowest annual operating cost. If you choose a heat pump with higher power than what the building needs, besides the higher initial cost for its purchase, it forces it into continuous restarts, resulting in pump wear and increased operating costs.

• Rated Thermal Power (7ºC - 35ºC): 8kW
• Maximum Water Temperature: 60°C
• Heating Type: Air to Water
• System Type: Monoblock
• Cooling