Boiling and condensation are vital processes in the transfer of heat from a hot to a colder region in numerous applications, e.g. power generation, refrigeration, refining, heat transmission, etc. Three distinctive modes of pool boiling occur: convective, nucleate and the potentially dangerous film boiling. Student engineers need to be aware of the boiling mode characteristics if they are to be involved in the design, operation or service of any heat transfer process. The Hilton Boiling Heat Transfer Unit is bench mounted, fully instrumented and operates from a simple mains electric and water supplies.