As a specialist in the field of water systems and safety regulations, I can provide you with a detailed explanation regarding the maximum temperature of hot water.

Hot water systems are designed to provide a comfortable and safe bathing and cleaning experience. The temperature of hot water is a critical factor that affects both the comfort and safety of the users. Setting the temperature too high can lead to scalding, which is a serious risk, especially for children, the elderly, and individuals with sensitive skin.

The ideal temperature for hot water in households is typically between 120°F to 140°F (49°C to 60°C). This range is considered safe for most users and provides a comfortable bathing experience. However, it is important to note that the optimal temperature can vary depending on the specific needs and preferences of the individuals using the water.

In commercial settings, such as hotels, restaurants, and public buildings, the recommended temperature for hot water is often lower, around 120°F (49°C), to minimize the risk of scalding. This is especially important in places where there is a higher likelihood of accidental contact with hot water, such as in public restrooms or in areas where children may be present.

For specific applications, such as bidets, the temperature should be set even lower, typically at 110°F (43°C), to ensure that the water is gentle and comfortable for sensitive areas.

It is also worth mentioning that local building codes and regulations may dictate specific temperature limits for hot water systems. These regulations are in place to ensure the safety of the occupants and to prevent accidents. It is essential to consult the local building codes and follow the recommended guidelines when setting the temperature for hot water systems.

Furthermore, modern water heaters and hot water systems often come equipped with thermostatic controls that allow for precise temperature adjustment. These controls can be set to maintain the water temperature within the desired range, providing both safety and comfort.

In conclusion, the maximum temperature of hot water should be set according to the specific needs and preferences of the users, while also taking into consideration the safety guidelines and local regulations. The general recommendation is to keep the hot water temperature between 120°F to 140°F (49°C to 60°C) for residential use, with adjustments made for commercial applications and specific uses such as bidets.

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The maximum temperature limit adjustment should be adjusted to limit the hot water to the required temperature at or below 120--F to prevent scalding (110--F at bidets. See code for various other temperature limits at fixtures).Feb 1, 2015read more >>