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.
The Gas Safe Register - previously known as CORGI - is the UK's official gas safety body. As such any boiler engineer you use should be on the Gas Safe Register. You should only allow boiler engineers to work on your heating systems if they have an official Gas Safe Register membership card.