20 Best Descaler For Tankless Water Heater (2022 Updated)

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Descaler is a specialized cleaner that is used to remove built-up mineral deposits from the heat exchanger of a tankless water heater. Over time, these deposits can reduce the efficiency of the heater and, eventually, lead to failure.

20 Best Descaler For Tankless Water Heater

1. J.C. Whitlam Flow32 Flow-Aide System Descaler ,32 Ounces (1 Quart)

J.C. Whitlam Flow32 Flow-Aide System Descaler ,32 Ounces (1 Quart)

  • Quart

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Big Frog Supply

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mediator_in_florida
gifted1959
mdw_jun

2. Rectorseal 68708 – Tankless Water Heater Flush – Calci-Free

Rectorseal 68708 - Tankless Water Heater Flush - Calci-Free

  • Restores Water Flow and Pressure
  • Cleans Circulation Coils
  • Completetly cleans system
  • Fast Acting
  • Biodegradable

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Specifications

Details
Information Effective Date 04/25/2011
Size 16.2 oz

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@pstheplumber
Mike Las Vegas
JS

3. Whitlam FLOW-KIT Flow-Aide Descaler System Kit

Whitlam FLOW-KIT Flow-Aide Descaler System Kit

  • FLOW AIDE System Descaler quickly dissolves water scale, lime, rust, and other water formed deposits, restoring efficiency to most all appliances.
  • Flow Aide System Descaler is a non-toxic concentrate which is certified to NSF/ANSI 60 for use as a cleaner in potable water systems.
  • This powerful, yet totally safe, liquid is non-toxic, non-flammable, non-hazardous, non-corrosive and biodegradable.
  • FLOW-AIDE System Descaler will not harm your personnel, equipment or our environment!

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Details
Product Dimensions 15 x 10 x 15 inches
Is Discontinued By Manufacturer No
Item Package Quantity 1
Included Components FLOW-KIT

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Andrew K
Tracy C
ler.us.9zlbpdpk

4. Rectorseal 68711 Calci-Free Tankless Water Heater Flush Kit

Rectorseal 68711 Calci-Free Tankless Water Heater Flush Kit

  • Width (In.): 12
  • Connection Size: 3/4″
  • Length (In.): 12
  • Material of Construction: Plastic

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Details
Capacity 5 Gallons
Power Source Corded Electric
Item Dimensions LxWxH 12 x 12 x 14 inches
Style Indoor Installation
Mounting Type Ceiling

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Cygar
Disappointed
jck

5. QwikDescaler+ Concentrated Descaler Solution QT7710 1 Gallon

QwikDescaler+ Concentrated Descaler Solution QT7710 1 Gallon

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Details
Item Package Dimensions L x W x H 11.69 x 6.18 x 6.1 inches
Item Dimensions LxWxH 12 x 12.5 x 12 inches
Included Components Bottle
Surface Recommendation Wall
Contains Liquid Contents Yes

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russ
Home Owner
Lone Wolf

6. Descaling Solution Coffee Machine Descaler – Universal, for Drip Coffee Maker and

Descaling Solution Coffee Machine Descaler - Universal, for Drip Coffee Maker and

  • Water flowing through your machine contain minerals.
  • These minerals form limescale and other mineral deposits.
  • Buildup of limescale and other mineral deposits also create undesirable taste effects on your coffee.
  • Tupkee Descaling Solution is a Citric Acid Cleaner Tha.

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Package Dimensions 8 x 6.1 x 2 inches
Is Discontinued By Manufacturer No

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rzim99
frangarr_8

7. Aqua Pure Scale Inhibition System

Aqua Pure Scale Inhibition System

  • 125 psi Pressure Range (Metric) 172
  • 862 kPa Reduction Claims Scale Replacement Interval 6 Month Series 3M WTS Series Temperature Range (Celsius) 4.4
  • 37.8°C Temperature Range (Fahrenheit) 40

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Ace Hardware
AquaPureFilters.com

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Units in Package 1
Directions Typical Installation: See enclosed system installation and operating instructions for complete installation information.
Warnings To reduce the risk associated with the ingestion of contaminants, Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system. Notice: To reduce the risk of water leakage or flooding, and to ensure optimal filter performance: Read and follow use instructions before installation and use of this system. Change the disposable filter cartridge every six months or sooner if you observe a noticeable reduction in water flow rate. Failure to replace the disposable filter cartridge at recommended intervals may lead to reduced filter performance and cracks in the filter housing, causing water leakage or flooding.

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Samus85
allfilters.com
Raptor

8. Distiller Cleaner Descaler (2 lbs) Citric Acid – Universal Application for Waterwise Natural & Safe – Deeply Penetrates Limescale & Wate

Distiller Cleaner Descaler (2 lbs) Citric Acid - Universal Application for Waterwise Natural & Safe – Deeply Penetrates Limescale & Wate

  • 2 Pound (Pack Of 1)

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Specifications

Details
Is Discontinued By Manufacturer No
Product Dimensions 7 x 3.5 x 3.5 inches; 2 Pounds
Contains Liquid Contents Yes

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Lexi
Jb
Carmella

9. Capresso Cleaning Solution Descaler – 3 Pack

Capresso Cleaning Solution Descaler - 3 Pack

  • Keep espresso machines, coffee makers and water kettles in top working condition
  • Prevents and removes limescale buildup
  • Use every 2-3 months or as necessary
  • Dissolves in water
  • 3 pre-measured packets

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Sur La Table
Abt Electronics & Appliances

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Specifications

Details
Manufacturer Part Number 640.13
Product Model 640.13
Product Name Cleaning Solution
Packaged Quantity 1 Box
Product Type Cleaning Solution

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Clifton
Carol G.

10. Eddy Electronic Water Descaler – Water Softener Alternative

Eddy Electronic Water Descaler - Water Softener Alternative

  • No salt alternative to a water softener. Emulates softened water without changing your water hardness. Retains healthy minerals in your water supply.
  • Easy customer installation on metal or plastic pipes. Helps prevent build-up of lime scale and dissolve existing deposits.
  • Descales entire water system. Maintenance-free with great results up to and above 20 gpg.

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Eddy Descalers USA

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Specifications

Details
Is Discontinued By Manufacturer No
Country of Origin United Kingdom
Maximum Flow Rate 10 Gallons Per Minute

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chrigauvi_0
rst1871
davack

11. Urnex Liquid Dezcal Activated Descaler, 33.6 Ounce

Urnex Liquid Dezcal Activated Descaler, 33.6 Ounce

  • Urnex liquid descaler is one of the most effective and most recommendable descaling agents for descaling of your espresso machine.
  • The bottle contains 1 liter of liquid descaler.
  • The product is NSF certified, and 100% biodegradable, which means the product is approved for organic production.

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certification “NSF Listed”

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Jason K.
Guillaume N.
Harve

12. Haymaker 32 oz Tankless Water Heater Descaler

Haymaker 32 oz Tankless Water Heater Descaler

  • Citric acid-based, non-corrosive and VOC-free.
  • Removes carbonates, sulfates, phosphates, rust, oxides and other mineral deposits.
  • Compatabile with most commonly found plumbing-related materials including PVC, CPVC, ABS, rubber, steel and most metals.
  • Other applications include descaling non-aluminum heat exchangers and water heaters.
  • Extends the life of the appliance when used as part of a regularly scheduled preventative maintenance program.

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Specifications

Details
Product Form Liquid
Product Type Tankless Water Heater Descaler
Container Size 32 oz
Brand Name Haymaker

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Craig the plumber
Frank the welder
Tom homeowner

13. Kelaro Tankless Water Heater Flushing Kit – Just Add Vinegar Descaler

Kelaro Tankless Water Heater Flushing Kit - Just Add Vinegar Descaler

  • Helps maintain the performance and extend the life of your tankless hot water heater. Easy directions for DIY Homeowner use.
  • Easily connects to tankless isolation valves using supplied 6′ Color Coded Hoses.
  • Works with Rheem, Bosch, Noritz, Rinnai, Takagi, Navien, Stiebel, Atmor, Ecosmart, Eccotemp, Marey Power, Tempra, Trutankless and others.

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Kelaro

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Specifications

Details
Manufacturer’s Warranty 1 Year Limited Warranty
Flushing Time 30 Minutes
Flushing Agent Calci-Free
Dimensions 12″ x 12″ x 12″

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andrshak
mosdal-mobile
carps47

14. Kelaro Tankless Water Heater Flushing Kit with Rectorseal Calci-Free

Kelaro Tankless Water Heater Flushing Kit with Rectorseal Calci-Free

  • Helps maintain the performance and extend the life of your tankless hot water heater.
  • Easily connects to tankless isolation valves using supplied 6′ Color Coded Hoses.
  • Everything you need in one kit to descale your tankless water heater in 30 minutes or less.
  • Suitable for DIY Homeowner or contractor use.
  • Includes 1/8 hp Utility Pump, 6 Ft Hoses & 3.5 Gallon Bucket with Lid and Instructions.

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Specifications

Details
Manufacturer’s Warranty 1 Year Limited Warranty
Flushing Time 30 Minutes
Flushing Agent Calci-Free
Dimensions 12″ x 12″ x 12″

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mtnmanrick

15. Rectorseal 1.2 lbs Calci-Free Tankless Water Heater Flush RE299922

Rectorseal 1.2 lbs Calci-Free Tankless Water Heater Flush RE299922

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George

16. Rectorseal Calci-Free Tankless Water Heater Flush 68708

Rectorseal Calci-Free Tankless Water Heater Flush 68708

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Direct Brand

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17. Kelaro Tankless Water Heater Flushing Kit with Flow-Aide

Kelaro Tankless Water Heater Flushing Kit with Flow-Aide

  • Helps maintain the performance and extend the life of your tankless hot water heater
  • Everything you need in one kit to descale your tankless water heater in 45 minutes or less | Suitable for DIY Homeowner or contractor use
  • Easily connects to tankless isolation valves using supplied 6′ Color Coded Rubber Hoses
  • Includes 1/8 hp Utility Pump, 3.5 Gallon Bucket with Lid, Instructions & Flow-Aide Biodegradable Descaler
  • Works with Rheem, Bosch, Noritz, Rinnai, Takagi, Navien ,Stiebel, Atmor, Ecosmart, Eccotemp, Marey Power, Tempra, Trutankless and others

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Product Details

Specifications

Details
Capacity 3.5 Gallons
Power Source Ac/dc
Style Stainless Steel Hoses
Package Dimensions 12.4 x 12.2 x 11.6 inches

18. Whitlam Flow Kit Flow Aide System Descaler

Whitlam Flow Kit Flow Aide System Descaler

  • Package Quantity : 1
  • Color : Black
  • Size : 15 x 10 x 15

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rw4tl

19. Rheem RTG20124 – Flush Kit – Tankless GAS Water Heater

Rheem RTG20124 - Flush Kit - Tankless GAS Water Heater

  • Helps maintain the performance of your Rheem tankless water heater
  • Connects easily to tankless isolation valves
  • Rheem’s Tankless Water Heater Flushing Kit should prolong the life of your tankless water heater
  • For use with all tankless models

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Specifications

Details
Application Water Heater
Compatible Brand/Model Various Rheem Tankless
Finish Family Black
For Use With Gas Tankless
Pack Size 1

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BillyKR
weekend home plumber
Tom P

20. Urnex Dezcal Coffee and Espresso Descaler and Cleaner – 4 Packets – Activated

Urnex Dezcal Coffee and Espresso Descaler and Cleaner - 4 Packets - Activated

  • Non-toxic, biodegradable descaling powder Effective
  • For fast and effective descaling of boilers and heating elements, removes limescale Multi-Use
  • For use with home coffee brewers, espresso machines, pod machines, capsule machines, kettles, garmet steamers, and domestic irons No Vinegar Smell
  • Removes limescale from heating element without the vinegar smell For Complex Maintenance
  • For complete maintenance use with Urnex Coffee Machine Cleaning Powder

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Specifications

Details
Recommended Room Indoor
Recommended Location Indoor
Count 1
Assembled Product Weight 1 oz

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CoffeeLover
Gerald M.
Travis77

Conclusion

The conclusion of the descaler for tankless water heater is that it is an effective and safe way to clean your tankless water heater. It is easy to use and can be done in a short amount of time. This product is also affordable and will not damage your tankless water heater.

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