Most if not everything in this world exists in two forms. A simple form and a complex form. Even we human beings exist as a simple form in the wombs of our mothers and we develop with time to become complex and complicated beings. When it comes to technology, it is not any different. There are very simple forms of technology while there are other forms that exist in complex forms. A computer for example is a complex form of technology. Heating and cooling apparatus are also not exempted from this rule. They too exist in simple and complex forms. A simple heating apparatus for example would be a charcoal burner, which is not even advisable to use because of the many health risks.
Modern innovations have transformed the heating and cooling industry into a very advanced one. Indeed there are numerous complex heating and cooling apparatus in the market today. Some of them perform tasks that would have been impossible ten years ago. Some of these apparatus has the ability to multi-task. This means that they can act as coolers and as heaters depending on the situation of use. A good example of this would be the thermo-electric generator which can both reduce and increase temperatures. Then of course there are other complex apparatus like portable heaters and portable air conditioners. Purifiers and Dehumidifiers are also not left behind. Who would have thought it possible to control the quality of air you breathe?
Heating and cooling are important processes in our lives and have direct impacts on our health and other parts of our social lives.