What is the maximum temperature of water from a domestic water heater used for heating through a fan coil?

The maximum temperature of water from a domestic water heater used for heating through a fan coil is 140 degrees Fahrenheit. This temperature is typically considered safe and effective for heating applications in residential settings. Higher water temperatures can increase the risk of scalding or burns, particularly for children or vulnerable individuals, which is why building codes and safety standards generally recommend keeping the maximum temperature around this level.

Additionally, 140 degrees Fahrenheit strikes a balance between effective heat transfer in the fan coil and maintaining safety. It allows for efficient heating of spaces without the added risks associated with higher temperatures. Other temperatures in the selections may not meet safety guidelines, as temperatures above 140 can pose risks for severe burns, while too low of a temperature might not provide adequate heating performance. Thus, 140 degrees Fahrenheit effectively represents the optimal maximum for domestic water heating through fan coils.