What is a central furnace?

Almost every home and the building has the needs of heating and the most common heating method in modern times was a central furnace. The central furnace usually heats the air or water by burning the fossil fuel inside the closed metal case. The heat is then distributed by means of pipe by forced air or pipes in the case of water. The most common fuel for central furnaces in the United States is natural gas, although coal, wood and heating oil are also common fuels. This only offers the advantage of adding fuel in one central location in heating systems that require refueling. Also, while fireplaces and other types of local local heating are strong heat sources for one room, they tend to attract cold air from the outside, so the external rooms of the house are cooler. And the central furnace draws and forces air into the house, which eliminates these types of problems.

There are records and evidence of the use of centralImpressions that date for thousands of years. During this time, the design of a typical furnace was simplified and somewhat standardized. The furnace must have several basic components organized to maximize the efficiency of the furnace. In a typical central furnace there is a real heating in the center of the unit, with air ducts at the top and bottom.

There is a power pipe at the top, through which the air is forced into the ventilation system. Some units, especially those, are dry climates, will have a moisturizer in this part. The central part of the furnace, where the combustion chamber is located, has two tubes connected to it. One brings air for fuel combustion; The other takes the exhaust air Away. Each central furnace must be exhausted outside, usually over the roof or side of the house, although modern furnaces produce only a little waste gas and heat.

The ventilation channel system in the house ends with a back -up pipe that connects to the central furnace at the bottom. Air is drawn from the inside of the house to warm up, sometimes after passing filTrem mounted on the backfill. Furnaces that are 90% efficient or more extract so much heat that water condenses inside the furnace cover. This water must be released by a small hose, which is also located at the bottom of the furnace, often opposite the back pipe.