What is a required feature for at least one drinking fountain according to codes?

A required feature for at least one drinking fountain according to codes is that it should comply with specific height regulations. These regulations are designed to ensure accessibility for all individuals, including those with disabilities. The Americans with Disabilities Act (ADA) mandates that drinking fountains be installed at heights that allow wheelchair users to access them easily. This promotes inclusivity in public facilities, ensuring that everyone has the ability to hydrate independently.

The other options do not meet the essential criteria laid out by prevailing codes. For instance, while a water fountain heater may provide warm water, it’s not a universally required feature. Similarly, being located outdoors or dispensing hot water is not a requirement for compliance. These features do not address the primary concern related to accessibility, which is why adherence to specific height regulations is crucial for the installation of drinking fountains.