Answer. ECO mode regulates climate control, power output, and seat heating. This mode reduces power demands on the engine and increases fuel efficiency.

Central heating gets its energy source from a variety of different places including solid fuels (such as wood), water/steam, petroleum and other liquids, electricity, heat pumps, and natural gases. The most common forms of central heating are electricity and gas because they are the easiest to maintain.

There are dozens of variations of home heating systems available, but the vast majority fall into one or more of these four distinct categories: forced air, electric, hydronic, and geothermal.

The common fuel used in heating homes is natural gas. Natural gas furnaces, often known as central heating systems, are equipped with a turbine and air vents to generate heated air which can be delivered through registers and windscreen.