Your electric water heater is only best if it delivers you hot water and makes you comfortable.But if you notice any changes in your heater like unusual noises or not giving enough hot water as it used to, it will result in some issues. These changes are due to sediment build up, dust and it is a signal to good drain. So learning how to drain an electric water heater not only helps you in maintenance but also leads to efficient and long term working of your system. At MileHi HVAC we guide and help many homeowners to keep their system at its peak performance and today we will walk you through exactly how to do it like a pro on your own.
Reasons To Drain Your Electric Water Heater Regularly
In winter seasons electric water heaters work consistently to provide us with hot water. This can lead to sediment buildup like chemicals and minerals build up at the bottom of the tank.This buildup creates several issues like:
- Becomes less efficient
- Reduction in lifespan
- Strange Noises
- Higher energy bills
Therefore draining a water heater is very beneficial if you do it once or twice a year because it prevents all the problems like sediment buildup and improves efficiency. On other hand regular electric water heater draining helps you detect minor issues which saves you from costly repairs after time.
Safety Measures Regarding To Draining
As draining electric water is also a DIY task but safety is also very important. During the process we use different electrical appliances which are very risky and need proper attention when using them.
Turn Off Power Supply
Electric water heaters are directly connected with circuit breakers so firstly switch them off and disconnect the power. Be very cautious never to drain the electric water heater when power is connected because it is very risky and can cause severe shocks and damages.
Turn Off Water Supply
During draining you have to completely clean it and there must not be any intervention. So before draining, turn off the cold water inlet at the top of the tank to stop water entering into the tank during the process.
Cool Down The Water
Before electric water heater draining, give your water heater at least 30 to 60 minutes to cool down the system and hot water in the tank. This is very important related to safety because it prevents burns and makes the draining process smooth.
Step By Step Guide for For Draining Electric Water Heater

Step1: Connect A Garden Hose
For proper and professional draining, connect one end of a garden hose with the drain valve located at the bottom of the tank and direct the other end to a bucket, floor drain or outside area where water can be discharged easily.
Step2: Open A Hot Water Faucet
After that, turn on the hot water tap in the sink or bathtub. This process allows the air to enter the system and also water will be drained smoothly.
Step3: Open The Drain Valve
After these steps slowly open the drain valve for releasing water out. You will see dirty and sediment water flowing through the tank and this is completely normal when you drain an electric hot water heater.
Step4: Flush The Tank
For proper draining once the tank is empty, dirty water stops flowing then turns on the cold water supply back for removing and flushing out any sediment that is left behind.Let the water run for a few minutes until it turns to be clear.
Step5: Close All The Stuff
At this step close the drain valve,turn off the open faucet and remove the connected hose because the process is completed. Then reopen the cold water supply valve to refill the tank so that the system will start working.
Step6: Restore The Power
Once your tank is full again with cold water, turn on the circuit breaker to restore power. After that wait for 30 to 40 minutes for water to heat up and then check if your system is working efficiently or not.
Draining Schedule For Electric water heaters
Many experts recommend performing electric water heater draining once or twice a year. However, the frequency can vary depending on your location and water quality. For instance, if you live in an area like Denver where the water tends to be hard and rich in minerals, you may need to flush your tank more often. Regular maintenance and proper electric water heater installation in Denver are essential to ensure optimal performance. It helps extend the lifespan of your appliance, saves energy and utility costs, and provides a reliable supply of hot water to meet your household needs throughout the year.
Seeking The Professional Help
Although the draining process is very simple as you can do it easily by seeking proper knowledge, some people are not comfortable doing this due to safety concerns like handling electrical appliances. At this point MileHi HVAC comes in. Our expert technicians professionally drain electric hot water heaters, inspect other issues and ensure safety and optimal performance.
Conclusion
Knowing how to drain an electric water heater is a very helpful skill which protects your investment and gives you comfort. Spending a few hours in maintenance of your system protects you from costly repairs and bills. If you want professional guidance Milehi HVAC is just a call away ensuring comfort and reliability.
FAQS About How to Drain Electric Water Heater
Q1. How long does it take to drain an electric water heater?
Normally it takes almost 20-30 minutes to completely drain an electric hot water heater but it also depends upon many factors like tank size and volume of sediment buildup.
Q2. Can I drain my electric water heater myself?
Yes, but it is necessary to seek some basic knowledge related to how to drain an electric water heater. So by following several steps you can easily perform this task. However if you notice any issues like leaks, rust call MileHi HVAC for professional assistance.
Q3. What happens if I never drain my water heater?
Skipping electric water heater draining leads to negative impacts on your system like sediment buildup, inefficient performance, higher energy bills and costly repairs.
Q4. Can I drain the heater while it’s hot?
Never do this thing,always let water cool down before draining an electric water heater to avoid burns and damages.
Q5. How do I know when it’s time to drain again?
Your electric water heater gives you several signs and signals like popping sounds,produces dirty water means it’s time to drain the electric hot water heater or contact MileHi HVAC for expert maintenance.
