inÂ·fest. tr.v. inÂ·festÂ·ed, inÂ·festÂ·ing, inÂ·fests. 1. To inhabit or overrun in numbers or quantities large enough to be harmful, threatening, or obnoxious: rats infesting the sewers; streets that were infested with drugs. 2.nfest-occupy in large numbers or live on a host; the Kudzu plant infests much of the South and is spreading to the North. overrun, invade. inhabit-be present in; sweet memories inhabit this house.
You can learn entirely on the job as an assistant to a boiler technician, through an apprenticeship program or from a diploma, certificate or associate's degree program at a community college or technical school.
High school courses in math and welding are considered to be useful. Most boilermakers learn their trade through a 4- or 5-year apprenticeship. Each year, apprentices must have at least 144 hours of related technical training and 2,000 hours of paid on-the-job training.hile boilers typically last more than 50 years, the need to replace parts, such as boiler tubes, heating elements, and ductwork, is an ongoing process that will require the work of boilermakers.