What Should I Do When I Can’t Get Enough Hot Water from My Water Heater? When you turn on your water heater, you expect to get some warm water to come out. Whether you are using the water to help heat up the tub for a warm bath or shower or to help with some of your cleaning, you want to be able to get that warm water out and have enough to finish the task at hand. But in some cases, you may turn on the water heater, get some hot water, but then halfway through the...