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4 Simple Tips for Tankless Water Heater Maintenance

Tankless water heaters work using heated coils to heat water as needed instead of relying on a supply of water in a tank. They are a great option for busy families and small businesses that will need a steady supply of hot water on demand while reducing energy-related costs. Take a look at some of the biggest benefits of going tankless:

● They use 40% less energy than traditional tank water heaters

● They can last over 20 years with regular maintenance

● They are compact, flexible, and efficient

Tankless water heaters require regular maintenance for optimal performance and efficiency like all plumbing fixtures and appliances. Homeowners are encouraged to follow these four simple tips for tankless water heater maintenance.

1) Flushing

This basic maintenance activity will help reduce mineral build-up in the water heater. Over time, minerals will accumulate in the tank’s heating chamber and start to severely impact the efficiency of the water heater, damaging the heat exchanger, and reducing the overall lifespan of the heater. Flushing or descaling the tankless water heater regularly will remove limescale build-up to prevent this.

If you plan on flushing or descaling the tankless water heater yourself, you will need several tools, time, and know-how to completely clean all of the deposited materials out of the system. There are descaling kits available online and the manual from the manufacturer should provide detailed instructions. If you would prefer to trust this job to the experts, a plumber can thoroughly flush and descale the water heater quickly.

2) Water Filter Cleaning

A blocked water filter will eventually affect the heater’s performance. Cleaning the in-line water filter is essential to prevent this. Some water heaters come with a screen to trap debris and these can be easily removed and cleaned. Simply turn off the water supply to the unit, remove the filter, and wipe it clean or clean it under running water. Check the user manual on your tankless water heater for more information or contact a local plumber for assistance on the best way to clean your unit’s water filter.

3) Air Filter Cleaning

A clean air filter ensures a good flow of air into the water heater. Regularly removing the air filter and cleaning it is necessary. This can be done using soapy water and a soft-bristled brush and then rinsing it thoroughly with clean water and drying it properly before reinstalling the air filter. If you are unsure of where your tankless water heater’s air filter is or would like assistance cleaning it, contact a professional.

4) Inspect Your Water Heater Regularly

While flushing the water heater and cleaning the filters will keep it in good condition, it is still important to inspect all of the pipes, heating elements, and valves from time to time. Broken or faulty parts should be repaired or replaced immediately by experts.

Hire a Professional for Tankless Water Heater Maintenance

Hiring a professional plumber for tankless water heater maintenance will drastically improve its performance and keep the entire system damage-free and working well for a longer lifespan. Jones Excavating & Plumbing offers top-notch services for repairing, replacing, or maintaining water heaters. Our team of professionals will get every job done right the first time for a fair price. Give us a call today at 970-532-2620 for a free consultation or schedule your appointment for tankless water heater maintenance online.

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Christian Pulisic
Christian Pulisic

Great job on outlining the steps for tankless water heater maintenance! HVAC Contractor South Palm Beach company values transparency and customer empowerment, ensuring that homeowners have the knowledge and tools they need to keep their systems running efficiently.



If the water coming out of your heater has a bad odor, strange color, or sediments, it's a clear indication that cleaning is required. Call HVAC repair diamond bar experts as soon as possible.

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