Gas Engine-driven Heat Pump (GEHP) or Gas Heat Pumps (GHP) air conditioning systems are used to comfortably heat or cool large spaces. They use gas to fuel the engine that drives the compressor. A gas heat pump is a heating appliance which uses the renewable energy stored in the soil, groundwater or the environment for heating purposes. It then combines this environmental heat with high efficiency gas-fired condensing technology.

Due to COVID-19 pandemic, the global Gas Engine-driven Heat Pump (GEHP) market size is estimated to be worth US$ 810.3 million in 2021 and is forecast to a readjusted size of USD 765.