Boilers: Heating Spaces
If you like to get warmed up when you are cold or feel the warm embrace of heat as you walk indoors from being in the blustery and cold outdoors, then you are a big fan of boilers, even if you do not know it.
Boilers are vessels that are used for heating purposes. They can be found in industrial, commercial and residential environments and anywhere else that requires heated air and or heated water. Gas boilers, electric boilers and oil boilers are the most common types of boilers.
Electric boilers run on electricity and are less expensive initially. Their cost rises after their installation as the cost of electricity can elevate costs and their maintenance typically requires a highly skilled professional. Additionally, electric boilers do not directly contribute to air pollutions like boilers that utilize fuels can, but since electricity is fueled by fossil fuels, electric boilers indirectly contribute to the pollution.
Boilers that use fuel to operate such as wood, coal or natural gas tend to be more expensive at the beginning and their costs decrease as they require minimal maintenance and do not require electricity to run.
Other types of boilers include low pressure boilers, high pressure boilers, hot water boilers, steam boilers, condensing boilers, combi (or combination) boilers and high efficiency boilers. They are typically made of steel, stainless steel, aluminum or cast iron and are housed in a rectangular enclosure. They can be big (as in several stories tall) or small and compact.
Historically, boilers were used to produce steam to generate power. Applications of this boiler were the steam locomotive and the steam engines. There was a lack of understanding of the relationship between temperature and pressure making it incredibly dangerous for people working on the steam locomotives and steam engines. Now, there is a better understanding of temperature and pressure; however, boiler maintenance still requires a highly skilled technician.