Regulation 13 of PUWER Also guidance available in various Brirish Standards about surface temperatures and burn/reaction times. Older people are less responsive/less sensitive to high surface temperatures. Also I think there was a HSE guidance book on h&s in care homes etc, not sure if this is still available. I would guess the NHS also publish a HTM (Health Technical Memorandum) guide with respect to hot surfaces and hot water etc.

HSE guidance on Scalding and burning -Risks from hot water and hot surfaces for health and social care sector:- http://www.hse.gov.uk/he...ces/scalding-burning.htm If it is a "complex" hotel premises, it may require professional input from a heating engineer ( not an ordinary plumber!) as reducing the surface temperature may have unforssen consequences i.e. not provide adequate heating. It is all to do with "heat exchange" and surface temperature is only one of the factors!