Regardless if you have a top-notch tankless water heater installed at home, it is inevitable that it will be prone to several problems that will limit its performance. Among others, one of the things that will require your attention is the build-up of mineral deposits, which is common when hard water is used.
In the rest of this post, I will let you know how to descale tankless water heater. To add, I will also provide you with valuable insights on other things that you can do for its proper maintenance, providing you with an assurance that it will function at its best even after several years.
Importance of Descaling your Tankless Water Heater
Before I discuss the specific descaling steps, let me give you a primer on why descaling is important in maintaining your tankless water heater.
When water is heated and when it flows out of the shower, it is inevitable that there are dissolved solids that are left behind. This build-up will reduce the effectiveness of the unit in heating water. The flow rate can also be minimized. In worst instances, it can also result in overheating and be a safety issue in the household.
How to Descale Tankless Water Heater
Here are the easy steps that you have to follow in flushing your tankless water heater, which will get rid of the deposits that could have possibly accumulated over time.
- The first thing that you have to do is to turn off the supply of power. Switch off the electrical circuit or rotate the valve to cut the supply of gas in the tankless water heater.
- Using a screwdriver, take out the cover plate, which will allow you to access the wires of the heater. Test if there is still a supply of electricity running through the wires. If there is, this means that the circuit is not completely off.
- Now that the supply of power has been turned off, the next thing that you have to shut down is the supply of water. Turn off the valve that supplies cold water and the other valve that sends heated water to the shower or faucet.
- Using a garden hose, connect the end of a sump pump. The other end, on the other hand, should be connected to the cold-water isolation valve. Using a wrench, make sure that the hose is tight enough in its current position.
- Position the pump and open one end of the hose so that you can connect it to a five-gallon bucket, which you should fill with white vinegar.
- Open the valves of the heater and start running the pump. Allow circulation for up to 45 minutes and shut down the pump once the vinegar has been finally drained from the hose.
- Throw the vinegar out of the bucket. Position the open-ended hose in the bucket. Turn on the supply valve of the cold water and allow the bucket to be filled with water.
- Reinstall all of the parts that you have earlier removed. At this point, you have successfully accomplished descaling your tankless water heater.
Other Tips to Maintain your Tankless Water Heater
Aside from descaling your tankless water heater, here are other important things that you can do to have the unit well-maintained:
- Read the instructions from the manufacturer. Refer to the manual so that you will know the specific maintenance steps, as they can be different depending on the water heater that you are using.
- One of the signs that you need to flush the water heater is when the flow rate slows down, which is indicative of having mineral build-up.
- Using a whole house water softener system will also prove to be a good idea. With the latter, the calcium and lime build-up will be significantly reduced.
- Regular inspection is necessary. This will help to spot a problem early on and execute the necessary solution before the issue gets worse.
- Do not hesitate to ask help from the pros. With their expertise, it will be easier to address a problem since they know exactly how it is diagnosed and repaired.
At this point, I hope that you already know how to descale tankless water heater. It might seem like a complicated task at first, but if you know the right steps, it will be a lot easy. You will need basic materials, which are most probably available at home. You should do this at least once a year, which will help in maintaining the peak performance of your water heater.