IMPORTANT SAFETY NOTE
It takes only 5 seconds of skin contact with 140°F water to cause a
second degree burn! You must protect against high water temperatures at all
lavatories, tubs, showers and other points of hot water contact.
Accidental scalding from high water temperatures is a greater
risk in some types of installations. Some examples are:
HOMES FOR THE MENTALLY HANDICAPPED
HOMES FOR THE PHYSICALLY HANDICAPPED
HOSPITALS AND NURSING HOMES
ELDER CARE FACILITIES AND REST HOMES
ORPHANAGES AND CHILD CARE FACILITIES
OTHER INSTALLATIONS - WHERE RESPONSE TO CONTACT WITH HOT WATER MAY BE SLOWER OR WHERE THE DANGER OF HOT WATER CONTACT IS GREATER
Thermostatically controlled mixing valves must be used in the
design of the potable hot water system.
Potable hot water should be tempered to no more than 110°F when used for bathing or other personal uses.
Good engineering practice mandates the use of thermostatically controlled mixing valves set at 120°F or less to keep the delivered water temperature
below scalding temperatures.
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