A gas-fired furnace in the heating industry is a heating system that utilizes natural gas or propane as a fuel source to generate heat. The furnace typically consists of a combustion chamber where the gas is burned, producing hot gases. These hot gases then pass through heat exchanger, transferring the heat to the air or another fluid.

Features:
* Combustion chamber
* Heat exchanger
* Burners
* Ventilation system
* Circulation
* Safety features
* Ignition system
* Durable material
* Size and capacity option
* Programmable features etc,