The answer to 'drain no hot water' is that a lack of hot water coming from a drain is typically caused by a problem with the water heater. This could be due to a malfunctioning heating element, a thermostat issue, or a buildup of sediment in the tank. Symptoms may include lukewarm or cold water, the water heater not turning on, or a lack of hot water throughout the home.
In some cases, the issue could also be related to a problem with the plumbing, such as a clogged or damaged hot water line. Troubleshooting the problem and determining the root cause is important to find the right solution.