Add 5-10 years to your unit's life with proper maintenance. Get your free printable checklist and flush schedule.
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Most tankless water heater owners don't realize that regular maintenance can extend their unit's lifespan by 5-10 years and prevent thousands of dollars in premature replacement costs. Yet many skip annual flushing, which is the single most important maintenance task.
Here's what happens when you don't flush your tankless water heater:
Standard recommendation: Once per year (every 12 months).
If you live in an area with hard water (above 10 grains per gallon), you should flush every 6-9 months. Hard water accelerates scale buildup significantly.
Our free maintenance checklist includes a detailed flushing schedule based on your water hardness level, so you'll know exactly when to service your unit.
This isn't a generic one-pager. Our checklist is a professional 2-page document designed to be printed and kept near your water heater for easy reference. It includes:
The easiest way to flush your tankless water heater is with a complete flush kit. The Kelaro kit includes everything you need: a 3/4 HP submersible pump, two 6-foot hoses with brass fittings, a 5-gallon bucket, and detailed instructions.
It works with all major brands - Rinnai, Navien, Rheem, Noritz, Takagi, and more. No need to buy parts separately or rig together your own setup.
View Kelaro Flush Kit on Amazon →Yes - and you should. Flushing a tankless water heater is a straightforward DIY task that takes about 90 minutes. You don't need to be a plumber or HVAC technician.
Professional service costs $150-$300 per visit. A flush kit costs $60-$100 and pays for itself after the first use. After that, your only ongoing cost is white vinegar (about $10 per flush).
Our checklist walks you through every step, from shutting off the power to testing the unit after the flush. If you can follow a recipe, you can flush your own tankless water heater.
Enter your email above and we'll send you the printable maintenance checklist immediately. Print it, hang it near your water heater, and use it to keep your unit running efficiently for decades.
No spam. No sales pitches. Just a high-quality resource to help you protect your investment.