Innovation provider

GHP Poland Sp. z o.o.


37 Bojkowska St.
44-100 Gliwice
tel: +48 502 112 776


The technology of Gas Heat Pumps (GHP) is based on application of an internal combustion engine fueled with natural gas or LPG in the heat pump system with variable refrigerant flow (VRF). The engine drives a compressor unit and also the heat energy produced in the engine is utilized. The mechanical energy is used for compression of the refrigerant (R410A). The heat produced by the engine is used in the heating mode as a highly efficient heat source supplying the heat pump cycle. In the cooling mode, the heat from the engine eliminates the necessity of evaporator defrosting (as it occurs in electrical heat pumps EHP), and also allows for hot tap water production. High efficiency of this system is additionally increased by modulation of rotational speed of the engine and engaging the compressors by electromagnetic clutches in dependence on the actual demand.
The outdoor units of GHP can be installed on the roof or beside the building, thus a design and construction of a dedicated boiler room is needless. Heat or chill produced in the outdoor units can be supplied into the building in three ways: (i) outdoor unit connected directly with direct expansion Dx type internal units, (ii) outdoor unit connected with water exchange station AWS and hot/ice water distributed to internal fancoils, (iii) outdoor unit connected directly with a direct expansion Dx exchanger in the air handling unit and the heat/chill distributed through ventilation ducts. Independently of the distribution system applied, the GHP outdoor units simultaneously can produce hot tap water in the summer period, in amounts sufficient to cover the needs of hotels, gastronomy, swimming pools, and other.


Main advantages of the GHP technology application:
- reduction of running costs up to 40% in comparison to traditional solutions,
- reduction of CO2 emission up to 50% in comparison to electricity based systems (coal fired power stations),
- durability and reliability of the devices, which fall under long-term warranty,
- unattended operation, great comfort of use, remote monitoring of installation,
- large-scale implementation of the GHP technology will result in significant reduction of electricity consumption in the scale of country, and consequently elimination of summer peaks of increased electricity demand.

Innovative aspects (ecologic, social and economic)

The most important innovative aspects of the GHP technology:
- realization of heating, air-conditioning, ventilation and hot tap water production in one system,
- maintaining of rated output power at wide range of temperatures, from -25 to +40ºC,
- elimination of down time required for a periodic defrosting of the evaporator, as it occurs in electrical heat pumps EHP.

Application examples

Among the most frequent applications of the GHP installations, there are hotels, banks, office buildings, apartment buildings, villas, hospitals, factories, research institutes, car showrooms, restaurants, entertainment and shopping centers, schools, churches, and other types of buildings where the need for air conditioning, heating, ventilation and optionally hot tap water production would exist.


Current stage of development

Already on the market

Intellectual Property Rights

Patent granted

Country of origin


Country of application



National Contact Point

dr Włodzimierz A. Sokół
National Contact Point for Eco-efficient Technologies and Management Systems
Central Mining Institute (GIG)

Plac Gwarkow 1
40-166 Katowice

Tel: +48 32 259 22 11
Fax: +48 259 22 11