A Home Air Conditioning

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Heating, cooling , air conditioning mission. C’mon!

Through out the history of mankind people used so many different ways to cool and heat their environments.Open firewith wood as main fuel was the most popular, if not the only one mean of heating closed spaces before 1742 when Benjamin Franklin invented first cast iron stove called Pennsylvania Fireplace or Franklin Stove.
Wood was still the main fuel but it was used far more economically, houses were warmer and cleaner.
It was first time in 1885 that Americans burned more coal than wood and around that time(1885) first coal fired
electric power plant was opened in New York City.
Invention of the iron cast radiators at the end of the 19th century, brought possibility of
first central heating systems. Coal heated boilers were placed on the lower levels(usually in the basements)
in order to deliver hot water to radiators in other rooms

In 1935 first electrical fans have been used in combination with coal air furnaces to deliver heat through
ducting systems. In the next short years gas and oil almost completely replaced wood and coal as the main

As a result in early 1940s first gas fired power plant made possible industrial and commercial air conditioning
to be used. At the time domestic air con adventure was still expensive, so great introduction started in
1950s with central air conditioning and window units.
By 1997 sales exceeded 6 million units.
Apart from the great improvement of everyday life, longer and more comfortable working ambients,
air conditioning had huge impact on architecture. Chimneys, high celings, sliding doors were quickly eliminated
as a “must” in the projects.
Although nothing major has been introduced in last few decades, modern air conditioning is considered as a most
efficient kind of air cooling, heating and dehumidifying.
In principal all air conditioners consist of: compressor, fan, condenser coil,
evaporator coil and refrigerant running through copper pipes.
Process or air conditioning starts in compressor that takes refrigerant gas(cool) and compresses and heat it.
Then it is sent to condenser where it has been cooled by fan condensed into a high pressure liquid.
Liquid travels to an evaporator and enters it through narrow capillary tube. Gas there evaporates, expend
and turn back into the gas. During that process heat has been extracted from the air and cycle repeated.
There are few different air conditioning systems that are in use today. Most common are:
- Split system Air Conditioning

- Ductless air conditioning
Different systems will suite different homes. There are few factors that should be taken in consideration when deciding
which is the best system/unit for specific house, such as: area and volume of the rooms, number and condition of the doors and windows,
house insulation and some weather conditions of the area where the house is. To obtain basic calculations, please visit:
http://www.hvacopcost.com/equipsize.html and http://www.hvacopcost.com/ .