plumber Camden Boiler - from Wiki
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.
Źródło: https://en.wikipedia.org/wiki/Boiler
Standards work plumber
Plumber in carrying out their tasks running in different rooms and at different heights. He should, therefore be sure of their safety. To ensure the safety of its employees are also required hydraulic company directors. Often the work performed by plumbers are repairing leaking taps and cisterns, as well as washing machines and boilers. However, large hydraulic projects are associated with the performance of water and sewage networks in homes and apartment buildings, as well as all other public buildings. In carrying out their work with builders plumbers and even the fire brigade. Sometimes plumbers deal with lecturing tiles in bathrooms and kitchens.
Number of persons employed in the company hydraulic
Hydraulic Company may be established by a qualified plumber who already has some experience. Prior to founding the company will have to obtain the necessary permits for this to officially start a business. Therefore, in addition to plumbers, employ the accountant and secretary, and benefit from the support of legal counsel. Then the professional conduct of the hydraulic will not be a problem at all, and only worry remains the employment of suitable plumbers who will conscientiously carry out their tasks. The larger company hydraulic may be employed for about ten plumbers and those responsible for its daily functioning.