Rinnai Tankless Preventive Maintenance
Rinnai Tankless Water Heater Preventive Maintenance
Flat-rate annual maintenance that removes scale, restores performance, and protects your Rinnai tankless system from premature failure.
Serving Hendersonville, Gallatin, Mt. Juliet & Greater Nashville
Manufacturer-recommended annual maintenance for Rinnai tankless water heaters.
Keep your hot water flowing year-round with our expert water heater flushing service. Prevent clogs, reduce energy costs, and extend the life of your Rinnai tankless water heater.
Local. Flat-Rate. Trusted.
We are the RINNAI tankless specialist, not a general plumber.
FlowTech Tankless provides expert Rinnai tankless water heater flushing for homeowners in Hendersonville, Gallatin, Mt. Juliet, Goodlettsville, and the Greater Nashville area. Whether your system has hard-water scale, reduced pressure, or slow hot-water delivery, we help your heater run more efficiently — always at a flat rate.
Why Should You Flush Your Water Heater Annually?
Annual flushing isn’t optional for tankless systems — especially in Middle Tennessee’s hard-water conditions. Regular descaling keeps your unit efficient, quiet, and protected long-term.
Benefits of Annual Rinnai Flushing
• Removes internal scale and sediment buildup
Prevents mineral accumulation inside the heat exchanger.
• Restores lost water pressure & improves hot-water delivery
Slow pressure and delayed hot water are early warning signs of scale.
• Improves efficiency & reduces energy costs
A clean system heats faster and uses less fuel.
• Protects your Rinnai warranty
Rinnai requires annual professional maintenance to keep warranty coverage valid.
• Extends the life of your tankless system
Prevents premature wear on key components and keeps the unit running quietly.
Middle Tennessee’s hard water accelerates scale buildup. A professional annual flush keeps your Rinnai system performing like new and prevents costly repairs.