Heating and cooling are natural processes that occur in nature at a regular time interval. Seasons are the live example of heating and cooling effects as in summer heat is at its peak and coolness in winters. In science also, these two factors play an important role as whole science is based on these two effects. These effects are used as a basic principle in many electronic devices that are used in the home for heating and cooling of the house.
There are many products that are made through this basic principle in order to benefit the people as in summers people want cool air and in the winter hot air. So, many electronic devices are manufactured by various companies that are used for heating and cooling purposes. For cooling purpose the machines used are air conditioners, ventilation machines, exhausts etc. and for heating purposes are air heaters, furnaces, heat pumps etc.
The air conditioner is widely used for cooling effect. It is used to change the temperature and humidity of the room. During its construction a fully fledged HVAC process is involved. HVAC is a complete cycle of heating, ventilation and air conditioning. All the mechanical devices used for heating and cooling process are made on HVAC cycle. The concept of air conditioning was developed in ancient Egypt. In various countries the trend of air conditioning is very common especially in hot countries. There are many multinational companies that manufacture air conditioners. Air conditioners work on the refrigeration process and the main gas used in the process is chlorofluorocarbons (CFC). Refrigerator is also another example of cooling effect. We can store food in a refrigerator that can be used for a longer period of time.
An air heater is an object that is used to blow hot air. It is a mechanical device that emits heat and raises the temperature of the room. This is basically used in homes for household purposes in winter. There are different types of air heaters like oven and furnaces. The heater can be either mechanical or electrical as per the requirement. In many cold countries various types of heaters are used. Some countries even used coal heaters with chimneys. There are various companies that manufacture air heaters.
According to the requirement and usage people buy various heating and cooling devices. There are various varieties of these devices available in the market with different prices and according to their budget people can take the device and use it for their household purposes. These devices also possess guarantee of about 1-2 years so that the customer can get free service during this period.
Apart from the household use these devices are also used in factories in order to make many products. Heating is used to make bricks, iron rods and many chemical compounds that are used in various products. Cooling is also used as an industrial process for refrigeration of food products. Heating and cooling are the essential needs of life and even nature has proven this, change of seasons is the best example of this fact. ocs system