Tankless water heaters are known for their energy efficiency, endless hot water, and compact design. But like any home system, they need proper care to deliver peak performance year after year.
If you’ve recently installed a tankless unit—or are thinking about it—here’s how to take care of it properly and get the most from your investment.
1. Flush the System Annually
Hard water can cause mineral buildup inside your tankless heater’s heat exchanger, reducing efficiency and eventually damaging the unit. Flushing the system with a descaling solution once a year helps prevent this.
A plumbing professional can perform the flush and inspect the system to ensure everything is functioning as it should.
2. Clean the Water Filter
Most tankless models include a small water filter that traps debris before it enters the unit. Over time, this filter can become clogged, restricting water flow.
Clean or replace the filter every 6 to 12 months, depending on your water quality and usage.
3. Inspect the Venting and Air Intake
Your tankless water heater needs clear airflow to operate safely and efficiently. Check the vent pipes and air intake screens for obstructions like dust, lint, or insects.
Blocked airflow can cause system errors or shutoffs, especially during the winter when external vents can freeze over.
4. Watch for Error Codes
Modern tankless water heaters display error codes when something’s wrong. Don’t ignore these warnings—refer to your unit’s manual or contact a technician to diagnose and resolve the issue before it causes permanent damage.
5. Schedule Professional Maintenance
Even if everything seems fine, it’s a good idea to schedule an annual inspection with a qualified plumber. A technician can:
- Check for leaks or corrosion
- Test gas and water connections
- Ensure the unit is working at full efficiency
- Reset or update settings for seasonal use
Protect Your Investment
A tankless water heater is a smart long-term upgrade—but it still needs care to reach its full potential. At Poe’s Plumbing & Backflow, we provide expert installation, inspection, and maintenance for homeowners who want reliable, efficient hot water every day.
If it’s time for annual service or you’re ready to switch to a more efficient system, contact us today. Our tankless water heater services are designed to keep you comfortable and worry-free.
