In and out of hot water

摘要

The dictionary definition of the name calorifier is 'an apparatus used for the transfer of heat to water in a vessel by indirect means, the source of heat being contained within a pipe or coil immersed in the water' - what the dictionary actually means is 'it is the correct name for what builders and plumbers call a hot water cylinder'.rnCalorifiers come in many shapes and sizes from the usual oval copper cylinder to the more radical square stainless steel shape. They operate by passing hot water from engines and heating systems through coils within the tank that heats the water held in the tank without contaminating the water.