Attended Boiler : A boiler that is under the direct control of a qualified operator at all times when steam is being raised or is being taken from the boiler
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}