Replacing an old boiler

Replacing an old boiler is the project of removing or retiring an existing gas, oil, LPG (liquefied petroleum gas) or electric boiler and fitting a new heating system. In heat pump work the phrase often covers the home survey, room-by-room heat loss calculation, radiator or other emitter checks, hot water cylinder suitability, controls and BUS (Boiler Upgrade Scheme) timing. It is a project scope label, not proof that a heat pump is suitable, every radiator must change, a hot water cylinder is compatible, BUS funding is approved, MCS certification is complete or the finished heating system will cost less to run.