Condensing tankless water heaters use a secondary heat exchanger to capture and reuse heat from exhaust gases that would normally be wasted. This allows Navien systems to reach ultra-high efficiency ratings and lower your monthly energy costs compared to non-condensing or tank-style heaters.

Correct. As long as the system is properly sized for your home, a Navien tankless water heater can provide endless hot water, even during back-to-back showers, laundry, and dishwashing.

Proper sizing is critical — that’s why installation by a certified Navien installer like Tanker’s Plumbing & Septics matters.

The upfront cost is typically higher than a traditional tank water heater, but Navien systems often pay for themselves over time through:

• Lower energy bills

• Longer lifespan

• Reduced water waste

• Fewer replacements over the years

Many homeowners see long-term savings and improved comfort.

With proper maintenance, Navien tankless water heaters can last up to 20 years or more, nearly double the lifespan of most traditional tank water heaters.

Yes. Annual maintenance is strongly recommended. This includes flushing the system to remove mineral buildup — especially important in Hill Country hard-water areas.

Tanker’s Plumbing & Septics offers professional annual tankless maintenance services to keep your Navien system running efficiently and protect your warranty.

Absolutely. Navien tankless water heaters can be installed in existing homes, though upgrades to gas lines, venting, or plumbing may be required. We handle all evaluations, code compliance, and installation details.