Expert Gas Tankless Water Heater Flush Service
Maintain peak efficiency and extend the life of your unit with a professional descaling service.
Up to 30% energy savings
Unlimited hot
water
Space-saving
design
Why flushing is essential
Endless Hot Water
Ensure your supply remains truly endless by preventing scale-induced performance decline.
Restore Efficiency
Remove mineral buildup that forces your unit to work harder and consume more gas.
Protect Investment
Prevent premature heat exchanger failure, one of the most expensive system repairs.
Common Signs Your Tankless Water Heater Needs a Flush
Don’t wait for a total system failure. Look out for these early warning signs that mineral scale is compromising your heater’s performance.
Hot water takes longer than usual
Reduced hot water flow
Error codes (Overheating)
Fluctuating water temperatures
Loud popping or rumbling sounds
Sudden increase in gas bills
ProTip: Prevention is Key
Manufacturers recommend a professional flush every 12-18 months, especially in hard water areas like Northeast Florida.
Service Areas
- Jacksonville Beach
- Atlantic Beach
- St. Augustine
- Jacksonville Beach
- Atlantic Beach
- St. Augustine
Our Specialty
The AEI ProGas Advantage
Serving Jacksonville Beach to St. Augustine for nearly three decades, we specialize in the precision maintenance required for high-end gas appliances. Our technicians aren’t just handymen—they are gas professionals.
Master LP License #00000
Full compliance with state and local codes for your peace of mind.
FAQ
Questions, answered by the experts.
How often should I have my tankless water heater flushed?
For most homes in Northeast Florida, we recommend a professional flush once a year. However, if your home has particularly hard water — meaning water with a high concentration of dissolved minerals — you may benefit from a flush every six months. If you are unsure about your water hardness, our technicians can assess your system during the service visit and recommend the appropriate maintenance schedule for your specific situation.
Can I flush my tankless water heater myself?
While some homeowners attempt a DIY flush using white vinegar, a professional service visit is strongly recommended. Our technicians use commercial-grade descaling solutions that are significantly more effective at dissolving stubborn scale deposits. More importantly, a professional flush includes a full inspection of the unit’s gas connections, venting, inlet filter screens, and overall condition — checks that a DIY flush does not address and that are critical for safe, long-term operation.
What happens if I never flush my tankless water heater?
Without regular flushing, scale buildup inside the heat exchanger continues to accumulate. Over time, this reduces the unit’s efficiency, causes it to consume more gas to heat the same amount of water, and generates excessive heat that can crack or damage the heat exchanger. Heat exchanger replacement is one of the most expensive repairs on a tankless unit, and in many cases the cost approaches that of a full replacement. Regular flushing is a small investment that prevents a very large one.
How long does a professional tankless water heater flush take?
A standard flush typically takes between 45 minutes and one hour, depending on the severity of the scale buildup and the model of the unit. Our technicians arrive prepared with all of the necessary equipment and work efficiently to minimize any disruption to your hot water supply.
Does a tankless water heater flush affect my water quality?
No. The descaling solution used during the flush is fully rinsed from the system before the service is complete. Your water quality is not affected, and the unit is returned to normal operation immediately after the service visit.
Is a tankless water heater flush covered under my warranty?
Most tankless water heater manufacturers require documented proof of annual maintenance, including regular flushing, as a condition of the warranty. Skipping routine maintenance can void your warranty coverage, leaving you responsible for the full cost of any repairs. Scheduling a professional flush with AEI ProGas each year helps ensure your warranty remains valid and your system stays protected.
Everything you need to know about upgrading to a tankless water heater — and keeping it running perfectly.
Don’t see yours? Call us at (904) 721-5431.