If this is not enough then you can dissolve vinegar to the water tank.
Descale tankless water heater vinegar.
How to clean a hot water heater with vinegar step 1.
Tankless water heater flush kit helps keep tankless heat exchangers free of scale build up.
Perhaps you have read a lot of guides on how to descale my tankless water heater around the internet.
Tankless water heaters are rapidly increasing in popularity.
Turn off the power source for your tankless water heater.
Turn off the water heater and disconnect from the power supply.
Close turn off the three water valves attached to your tankless water heater.
Close the hot water purge port turning it until it is perpendicular to the port valve.
Don t worry descaling your water heater is not hard to do and you can definitely do it by yourself.
Before you begin set your temperature to 150 f and let hot water run through the heater for about a minute.
Here are the steps on how to descale a tankless water heater.
Remove the purge port valve caps slowly from the purge valves located on each of the cold and hot water.
Once connected you can run a solution of water and vinegar to clean the heat exchanger of any scale deposits.
Use 2 5 gallons 9 46 liters of undiluted white vinegar to clean your tankless water heater at all times instead of chemical solutions.
12 step tankless water heater flushing procedure.
Close the water valves for both the hot and cold.
Since plain white vinegar is all you need hence the tankless water heater maintenance costs are also very low.
The flush kit connects easily to the tankless service valves.
Regular use helps maintain a healthy tankless water heater.
So here is a complete guide on how to clean hot water heater with vinegar.
Since your tankless water heater is most likely the source of all your drinking water and bathing water using chemical cleaning solutions may be extremely harmful to your health.
This helps to clean the deposited materials more easily.
Remove the purge port.
Shut off all the power to the water heater.
To reduce this mineral that built up you need to flush the water tank.
To maximize those.
The flush of your noritz rheem rinnai tankless the water heater with the distilled white vinegar each year if you are using soft water or every 6 months for the hard water.
Tankless water heaters have a lot of benefits that can make your life easier.