Plumber - from Wikipedia
The word "plumber" dates from the Roman Empire. The Latin for lead is plumbum. Roman roofs used lead in conduits and drain pipes and some were also covered with lead, lead was also used for piping and for making baths. In medieval times anyone who worked with lead was referred to as a plumber as can be seen from an extract of workmen fixing a roof in Westminster Palace and were referred to as plumbers "To Gilbert de Westminster, plumber, working about the roof of the pantry of the little hall, covering it with lead, and about various defects in the roof of the little hall". Thus a person with expertise in working with lead was first known as a Plumbarius which was later shortened to plumber.
A plumber is a tradesperson who specializes in installing and maintaining systems used for potable (drinking) water, sewage and drainage in plumbing systems. The term dates from ancient times, and is related to the Latin word for lead, "plumbum".
Boiler - definition
A boiler is a closed vessel in which water or other fluid is heated. The fluid does not necessarily boil. (In North America the term "furnace" is normally used if the purpose is not actually to boil the fluid.) The heated or vaporized fluid exits the boiler for use in various processes or heating applications,12 including water heating, central heating, boiler-based power generation, cooking, and sanitation.
Self perform minor plumbing work
Many of the minor plumbing work we perform ourselves, without the need to order and pay for plumbing services. This is the case when taping of water is caused by a broken seal or simply only further insulate the hose from the washing machine to the water drained from this unit does not spread into the sides. Attribute household plumbing are, so all kinds of gaskets and other materials for performing insulation, as well as various screws and screwdrivers and drill. Additional hydraulic equipment you can buy at the store, which additionally get professional help in terms of its choice. Hydraulic devices can also be ordered via the Internet.