Tankless Water Heater Maintenance in Prince George, BC

We recommend annual flushing and inspection for most homes. In areas with very hard water, twice-yearly flushing may be worthwhile to keep mineral buildup in check. Annual maintenance keeps scale minimal, catches sensor drift early, and documents safe operation for warranty compliance. Once a year is the standard preventive-care interval for most Navien systems we service.

Tank systems need flushing too, but tankless systems are far more sensitive to mineral accumulation. A scaled-up tank can still heat water; a scaled-up tankless heat exchanger chokes off flow entirely and can shut the system down. Tankless maintenance must be rigorous and regular, and the flushing process itself is deeper and more specialized than what a tank system requires.

Many homeowners attempt DIY flushing, but professional flushing is much more thorough. We use commercial-grade descaling solution and specialized equipment that circulates the solution through every passage of the heat exchanger under controlled pressure. DIY methods often miss scale buildup in hard-to-reach areas, leaving residual mineral deposits behind. Professional flushing ensures complete mineral removal and verified results.

Mineral scale builds up inside the heat exchanger, reducing flow and forcing your system to work harder. Efficiency drops, your energy bills climb, and after several years of neglect, flow restriction becomes severe enough that hot water output suffers noticeably. Eventually, the heat exchanger may need full replacement rather than a simple flush—a far more expensive outcome than the annual maintenance that prevents it.

Water softening greatly reduces mineral buildup and can extend the interval between deep flushes, but even soft water contains some minerals. We still recommend annual inspection and light flushing even in homes with a softener installed. You'll go longer between intensive service visits, but maintaining the system on a regular schedule remains essential to protect your investment.

The length of a maintenance visit depends on how much mineral buildup needs to be flushed and whether we uncover any issues along the way. Flushing typically takes the bulk of the appointment, with inspection and sensor testing rounding out the visit. If your system is heavily scaled or we discover a problem needing repair, the visit may run longer. We'll give you a time estimate when we arrive.

We'll explain what we found and give you clear repair options. Many problems discovered during maintenance—like a drifting sensor or early corrosion—are addressed immediately as part of the service. For larger issues, such as a failing control board or heat exchanger damage, we'll quote the repair separately and let you decide when to proceed, with no pressure to commit on the spot.

Most Navien warranties require annual professional maintenance to remain valid. Our maintenance visits are documented in writing, so you have proof that you've fulfilled the manufacturer's requirement if a warranty claim is ever needed. Skipping maintenance can void your warranty protection entirely, which makes staying current on service one of the most cost-effective things you can do for your system.

Regular maintenance greatly reduces failure risk, but tankless systems are mechanical and will eventually wear out no matter how well they're cared for. The goal is to extend your system's useful life, catch developing issues early, and avoid the kind of unexpected breakdown that leaves your home without hot water. A well-maintained system consistently outperforms a neglected one over its full operational life.