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About Kelaro
Kelaro was founded in 2016 to help consumers find feature-rich, premium appliance accessories for DIY and small business installations without the inconvenience and limitations of traditional hardware stores.
- Trusted by tens of thousands of customers across North America
- Our products are engineered by us in California
Kelaro Tankless Water Heater Descaler Kit - Just add Vinegar
Everything you need in one kit to flush your tankless water heater - Just add Vinegar!
Like all appliances, tankless water heaters require regular maintenance for optimal performance and efficiency. With proper maintenance, they can last over twenty years.
This cleaning kit comes with everything you need to maintain your water heating system. It includes step-by-step instructions that are easy to follow and quickly connects to your tankless isolation valves using the supplied hoses. Just add your own vinegar.
- Helps maintain the performance and extend the life of your tankless hot water heater
- Vinegar is preferred for some manufactures - check your manual to confirm
- Suitable for DIY Homeowner or contractor use
- Works with Rheem, Bosch, Noritz, Rinnai, Takagi, Navien, Stiebel, Atmor, Ecosmart, Eccotemp, Marey Power, Tempra, Trutankless and others
Regular Tankless Water Heater Maintenance Saves Money
Mineral Build-up is Bad
Heater elements attract minerals from water and quickly add layers of scale during normal use. The layers get caked on and decrease the surface area available to heat up water.
Avoid Cold Showers
Scale build-up causes water to heat slower and decreases the maximum temperature of water coming out of your heater.
Scale will keep adding layers until the system is no longer able to heat water going through your tankless water heater - meaning cold showers are in your future!
Save Cash
Tankless water heaters don't run efficiently with scale and require more energy (gas or electricity) to run. Extra energy costs add up month after month.
You could hire a plumber to do the maintenance, or save even more - and do it yourself.
Annual maintenance using a Kelaro Flush Kit keeps your system running efficiently and saves you energy. Even better, the kit can be reused year after year - just replace the cleaning agent.
Parker
Reviewed in Canada on March 16, 2025
Way cheaper than hiring someone to do it. Super easy, no reason not to do it yourself
J G
Reviewed in the United States on January 24, 2025
Simple clear instructions
HenryL
Reviewed in Canada on September 4, 2024
I have had my Rinnai tankless heater serviced over the last 12 years, but decided to try this servicing myself. This Kelaro system is complete and it was very easy to perform the flush with vinegar. The pump is very good quality. The Kelaro kit also came with simple to follow instructions.
James Ockenden
Reviewed in the United States on May 22, 2024
This worked well and was less expensive than another one I had previously used. Hoses are braided metal and durable, the pump appears well built and as long as it lives on for several years I plan to do this cleaning every year.
KARobison
Reviewed in the United States on December 4, 2024
This kit was perfect. Hooks up easily. Pump worked flawlessly. Bucket is plenty big.
Jacky Liang
Reviewed in Canada on January 30, 2024
I use this kit to flush my tankless water heater. I have used the water heater for 18 months. After flushing, the temperature of hot water supply raised to as if it was new. However, this kit is under value for the price. I can spend much less if I buy the components separately.
Allan
Reviewed in Canada on April 29, 2024
I used this kit to flush my tankless water heater
Randy
Reviewed in Canada on June 25, 2023
Flushed my Navien with no issues. No need to read the instructions that came with the flush kit or with the Navien. I watched one video on YouTube to figure out where the air intake and water filters were. The rest is easy. The pumping hoses are inside the plastic pail. It's assumed that you would use the pail when doing the flush. I chose not to. I used a 20 litre pail instead.
Clay F.
Reviewed in the United States on March 28, 2023
I was hesitant at first because I had never owned a tankless system before. After using this I am mad I didn’t sooner. Let me explain.My tankless heater was a huge investment. I knew that I needed to descale it periodically from my installer giving me the details. I was concerned because I priced the service for e professional to do the service and was shocked at the cost. For my area it would have been $400-$500 dollars. This product was totally worth the investment. The ease of use is ridiculously simple. 2 gallons of vinegar and instructions so simple it took less than 5 minutes to install. Per the instructions you run for 45-60 minutes, flush and then use the tankless per normal. I did experience a slight leak at the hot side of the unit but I can’t be sure that the product was at fault or I had it installed but it wasn’t enough to cause an issue and I was able to complete the task with no issues. After letting the unit and hoses dry I have it stored for another use at a later date. Definitely would recommend you protest your investment and get this for your tankless
GrilledCheese
Reviewed in the United States on February 5, 2023
This is very easy to use, and I am not a person who knows anything about plumbing. I was nervous, so I watched 3 different You Tube instructional videos and still had my daughter help me. We both agreed that it was a pretty easy process. It takes about 10 minutes to hook it up and get it ready, then it does its thing, and another 5-10 minutes to disconnect. All I needed was a pair of plyers, since some of my valves were hard to open and close. There was no mess to clean up; I just took 5 minutes to rinse the hoses and pump after and let them dry before putting away.I have 2 tankless water heaters that I had installed about 5-6 years ago. I paid over $100 each to have them flushed each year. Last year the price jumped to over $300 (EACH! so yes, over $600!!!) Prices have only gone more crazy since, so I'm sure it's even more now. I have well water; I know I can't just let them go without cleaning.Now that I have the kit, it's just a matter of 3 gallons of vinegar for each unit, and I'm good to go! Yes, like everything else, the price of vinegar has doubled recently, but still, it cost me $600. Even if you are rich, or kinda lazy, just do this. It's no big deal, and it just makes sense. The hoses and pump fit in the bucket with a nice sealed lid to keep them clean and easy to store until I need it again next year. I just wish I'd done this from the very beginning!
Rocker
Reviewed in the United States on July 18, 2022
I purchased this and used it on my tankless water heater at the advice of a neighbor, and it seems to work; there was a little bit of something that came out of the heater and ran into the bucket. It wasn't expensive, was simple to use, and came with everything I needed to do the job. And it all packed up conveniently in the bucket. I will use it annually to control any scaling. I hope it extends the life of my tankless water heater.
aramsmoon
Reviewed in the United States on January 24, 2022
I have a very large new external Rinnai heater and this was my first self-service 6 month descaler attempt. I ran the circulation for 45 minutes and after only 6 months I didn't notice anything unusual in the vinegar after completing the process.A review I read mentioned the included Kelaro bucket is insufficient, so I had a backup 5 gallon bucket standing by.However, 2 gallons of Costco white vinegar in the included Kelaro bucket works perfectly.The Kelaro instructions corresponded to the Rinnai instructions which coincidentally instructed to use 4 gallons of white vinegar, instead of only 2. But, 2 gallons was fine.Perhaps even 1 gallon would work, since the Kelaro pump works great, As long as you ensure the red hose is submerged close to the bottom of the pump, I assume the vinegar would circulate fine with only a gallon. I bet the red hose could be weighted at the bottom of the bucket to ensure it was flowing directly into the bottom of the pump. 2 gallons seems like a safer bet to ensure the pump is always pumping vinegar - in case you step away and the red hose moves, etc. And, vinegar is relatively cheap. The pump will possibly break without liquid running through it, of course.I also read in a review to pump water through the whole system to clear vinegar from the pump and hoses before storage - before moving onto the stage of clearing out any vinegar from the heater. So, I went ahead and utilized the backup 5 gallon bucket and moved the pump (disconnect the power first, of course) into it and took 10 minutes to circulate water. You could of course also do this with the included Kelaro bucket. Always make sure to unplug the pump if removing it from liquid.Lastly, I moved onto the instructions to clean vinegar from the heater, which at that point was pretty redundant. A couple five gallon bucket fill-ups later and the water coming out of the heater tasted fine. I watered some plants :) and dumped the vinegar down my bathroom sink drains as a probably useless gesture to help dissolve gunk.All in all a great kit, even if it's too expensive IMO. Easy enough for the mechanically disinclined to use.Set aside a good 1.5 hours to complete the job which incudes staging everything and cleaning up when your done. An extra 15 to write the Amazon review haha.
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