Thermostatic-mixing-valve manufacturer Honeywell has welcomed the inclusion of severe scalding of patients in the expanded list of ‘never events’ (unacceptable and eminently preventable in the NHS) published by the Department of Health. It endorsees the thermostatic mixing valve (TMV) as a vital and reliable safety device for use in healthcare properties to prevent scalding. The addition of scalding to the list resulted from campaigning by the Thermostatic Mixing Valve Association, of which Honeywell is a member.