Does a Tankless Hot Water Heater Need Maintenance?
A tankless water heater is often seen as the low-maintenance solution for endless hot water, but even these modern systems need a little TLC. Regular upkeep isn’t just a good idea—it’s key to keeping the water flowing efficiently and avoiding expensive repairs down the road.
Think of it like this—just because your car is fuel-efficient doesn’t mean you skip the oil changes. Your tankless hot water heater works the same way. In this guide, we’ll show you why maintenance matters, how to spot trouble early, and what steps to take to keep your system in shape.
Do Tankless Water Heaters Need Maintenance?
Yes, tankless hot water heaters absolutely need maintenance. These systems may be efficient and space-saving, but they’re not immune to wear and tear.
Over time, mineral deposits (especially in areas with hard water) can build up inside the unit, reducing efficiency and potentially damaging components. Routine care keeps the system running smoothly and ensures you’re not hit with surprise breakdowns or costly repairs.
Regular maintenance also extends the life of the system. A well-maintained tankless water heater can last over 20 years, but neglecting upkeep can shorten that significantly.
Beyond saving money, proper maintenance ensures your family always has access to reliable, on-demand hot water.
What Maintenance is Needed?
Maintaining a tankless water heater involves a few simple but essential tasks. These steps help keep the unit clean and efficient:
- Flush the system to remove mineral buildup, which is common in hard water areas.
- If your model has a filter, clean or replace it to prevent clogs and maintain proper water flow.
- Inspect the unit for any signs of leaks, corrosion, or unusual wear.
Each system may have specific maintenance needs, so check the manufacturer’s manual for exact instructions. If your water is particularly hard, you might need to flush the unit more often to prevent scaling from affecting the system’s performance.
How Often?
Most manufacturers recommend annual maintenance for tankless water heaters, but several factors can influence the frequency:
- Water hardness: Homes with hard water may need more frequent flushing to prevent scale buildup.
- Usage levels: High-demand households might require additional filter cleaning or inspections.
- Manufacturer guidelines: Always follow the recommended schedule for your specific system.
In some cases, professional inspections every one to two years can help identify and address problems before they escalate. There are a few telltale signs that your system needs maintenance:
- Water temperature fluctuates or isn’t as hot as it should be.
- Water pressure is noticeably lower than usual.
- You hear strange noises coming from the unit.
- Error codes appear on the system’s display.
- Mineral deposits or scale buildup are visible near the system.
Other Maintenance to Consider
Caring for your tankless water heater is just one part of maintaining an efficient, comfortable home. Consider these complementary tasks:
- Insulate exposed pipes to prevent heat loss and freezing during colder months.
- For models with a TPR (temperature and pressure release) valve, check for leaks regularly.
- Check for leaks in plumbing that could affect water pressure or energy efficiency.
- Schedule annual inspections for HVAC systems and appliances to ensure everything runs smoothly.
These additional steps can help you protect your investment and keep your home systems operating efficiently.
When to Call a Professional
Some maintenance tasks can be handled on your own, but there are times when calling a professional is the smartest choice. If you notice persistent issues like fluctuating water temperature, leaking valves, error codes that won’t clear, or strange noises coming from the unit, it’s time for expert help.
Deep cleaning tasks, like descaling the system or handling internal components, often require specialized tools and knowledge to prevent accidental damage. Regular professional inspections are also key to catching small issues before they turn into costly repairs.
They ensure your system is thoroughly checked, properly maintained and aligned with manufacturer guidelines to keep warranties intact.
Conclusion
Regular maintenance is the secret to getting the most out of your tankless hot water heater. With proper care, you can enjoy reliable hot water, lower energy bills, and a system that lasts for years.
