gasfired

Gas-fired refers to equipment or systems that burn natural gas or other gaseous fuels to produce heat or power. Gas-fired technologies are widely used for space heating, domestic hot water, cooking, and industrial processes, as well as for electricity generation in gas-fired power plants.

Common gas-fired devices include boilers, furnaces, water heaters, and gas turbines. In power generation, gas-fired plants range from simple-cycle gas turbines to combined-cycle plants, where a gas turbine drives a generator and waste heat is recovered in a steam turbine.

Key components include the burner, combustion chamber, heat exchanger, exhaust system, and controls. Safety devices such as gas shutoff valves and flame sensors are standard, and ignition systems may be pilot lights or electronic igniters. Operation involves mixing fuel gas with air, igniting the mixture, and transferring heat to water, air, or a turbine circuit.

Efficiency and emissions vary by technology. Modern condensing gas boilers achieve high efficiencies, often 90% or more, while older non-condensing systems are around 80–85%. Gas turbines have lower simple-cycle efficiency but can exceed 60% in combined-cycle configurations. Emissions include carbon dioxide, nitrogen oxides, and potential methane leaks; regulations aim to limit pollutants and promote low-emission combustion and leak prevention.

Safety and regulation: installation and servicing require licensed professionals and compliance with national or regional codes. Systems incorporate ventilation, shutoff devices, gas leak and carbon monoxide detectors, and regular maintenance schedules.

Role in energy transition: gas-fired systems offer reliability and rapid response but rely on fossil fuels. Decarbonization options include hydrogen-ready designs, renewable gas blends, and integration with district heating or electrification strategies, with environmental impact tied to fuel source, efficiency, and methane management.