The Best Water Heater Booster : Top 20 Picks By An Expert

When you come across a product online, chances are you will get similar suggestions. Things get complicated when you need to choose from several options. But the situation escalates when you don’t know about all the products in detail or what to search for in the product.

To make choosing the best Water Heater Booster more convenient, we made a comprehensive guide on factors to consider before buying the product. Knowing these factors will help you make a more informed decision without falling for marketing baits. And the buying guide will be followed by a bunch of answers to frequently asked questions.

Follow us until the end to get all the necessary information to pick the right product for your needs. Explore what features your desired product should possess to make sure it meets your needs. Let’s get started with no further ado.

For Your Ease, We Have Curated an Extensive List of the top 10 Water Heater Booster

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Place Image Product Information Score
1 Eemax HATB007240 Tank Water Heater Booster 7.2 kW 240V Eemax HATB Tank Water Heater Booster kW by Eemax
9
2 Rheem RTEX-AB Water Heater Booster Rheem RTEX-AB Water Heater Booster by Rheem
9.7
3 Cash Acme 3/4 Inch Tank Booster Water Heater Thermostatic Mixing Valve with Temperature Gauge and Braided Hose, Domestic and Commercial Application, PEX Pipe, PE-RT, CPVC, Copper, 24644 Cash Acme Inch Tank Booster Water Heater by Cash
9.5
4 Stiebel Eltron MegaBoost Tank Booster Water Heater Stiebel Eltron MegaBoost Tank Booster Water Heater by Stiebel
9.4
5 Eemax TankBuddy Water Heater Booster Blue Eemax TankBuddy Water Heater Booster Blue by Eemax
9.5
6 EcoSmart 7.2 kW Electric Water Heater Booster Model # ECOTB240 EcoSmart kW Electric Water Heater Booster Model by EcoSmart
9.3
7 EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology EcoSmart ECO Electric Tankless Water Heater KW by EcoSmart
9.1
8 Rinnai RL94iP Non-Condensing Propane Tankless Water Heater, Indoor Installation, Up to 9.8 GPM Rinnai RL iP Non-Condensing Propane Tankless Water by Rinnai
9.4
9 EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology EcoSmart ECO Electric Tankless Water Heater KW by EcoSmart
9.2
10 Electric water heater,3500W 110v Thermostatic instantaneous Hot Water Heater with LCD display and booster shower head Mini Electric water heater multiple protection for Home kitchen and bathroom Electric water heater W v Thermostatic instantaneous by Electric
9

Top 20 Best Water Heater Booster of 2023 (Reviews)

Bestseller No. 1

Eemax HATB007240 Tank Water Heater Booster 7.2 kW 240V

Popularity Score 9.6
Quality Score 9.5
Sentiment Score 9.5

Highlighted Features

  • Increase deliverable hot water up to 45%
  • Compact design with zero clearance requirements, digital user interface,
  • Temperature accuracy +/- 1 degree F, external controls for adjustable settings
  • Easy installation on new or existing tank water heater, field replaceable element

Additional Info :

Brand Eemax
Color White
Item Dimensions
Height 7
Width 22
Length 36
Weight 57.91
Bestseller No. 2

Rheem RTEX-AB Water Heater Booster

Popularity Score 9.7
Quality Score 9.7
Sentiment Score 9.8

Highlighted Features

  • Item Weight: 8.5 lb
  • Country of Origin: United States
  • Brand name: Rheem
  • Item Dimensions: 6.75"L x 10.3"W x 14.0"H

Additional Info :

Brand Rheem
Color Black
Item Dimensions
Height 18
Width 24
Length 44
Weight 86.7
SaleBestseller No. 3

Cash Acme 3/4 Inch Tank Booster Water Heater Thermostatic Mixing Valve with Temperature Gauge and Braided Hose, Domestic and Commercial Application, PEX Pipe, PE-RT, CPVC, Copper, 24644

Popularity Score 9.7
Quality Score 8.9
Sentiment Score 9.5

Highlighted Features

  • HOT WATER TANK BOOSTER: Water heater booster with temperature actuated mixing valve and gauge mixes hot water with cold to deliver tempered water at a controlled temperature; works with gas, power vent, electric, and tankless heaters
  • PROVIDES SAFE TEMPERATURE: Water heater booster helps to prevent injury from scalding when showering by regulating the temperature output to 120 degrees F (49 degrees C); can be turned up to a purifying 140 degrees F (60 degrees C)
  • EASY TO INSTALL: Anti scald mixing valve features innovative push to connect technology to allow for easy installation with PEX pipe, PE-RT, CPVC, and copper; no soldering, glue or crimping necessary
  • LEAD FREE: Thermostatic mixing valve with gauge is composed of strong and sturdy lead free DZR brass
  • CERTIFIED: Shower mixing valve is certified for both residential and commercial applications; ASSE 1017 and 1070 listed, CSA B125.3 listed, NSF/ANSI 372 and NSF/ANSI 61 certified

Additional Info :

Brand Cash
Color White
Item Dimensions
Height 20
Width 43
Length 30
Weight 76.51
Bestseller No. 4

Stiebel Eltron MegaBoost Tank Booster Water Heater

Popularity Score 9.7
Quality Score 9.8
Sentiment Score 9.7

Highlighted Features

  • More hot water for more Showers or longer Showers
  • Saves space by making a small tank perform like a large tank
  • Fast & accurate hot water temperature adjustment for convenience and comfort
  • Increases existing tank capacity up to 70%
  • 200% faster recovery time

Additional Info :

Brand Stiebel
Color Grey
Item Dimensions
Height 17
Width 21
Length 44
Weight 99.42
SaleBestseller No. 5

Eemax TankBuddy Water Heater Booster Blue

Popularity Score 9.7
Quality Score 9.3
Sentiment Score 9.7

Highlighted Features

  • Get more hot water from any size tank
  • Increase deliverable hot water up to 45%
  • If you currently have 10 gauge wiring & 30 AMP breaker there is no addition feed required
  • Nearly double your shower time
  • Compact design, fits on existing tank

Additional Info :

Brand Eemax
Color Off-white
Item Dimensions
Height 20
Width 38
Length 39
Weight 29.56
Bestseller No. 6

Hatco C-12-240-1-QS (QUICK SHIP MODEL) Compact Booster Heater

Popularity Score 9.4
Quality Score 9.2
Sentiment Score 9.1

Highlighted Features

Additional Info :

Brand Hatco
Color Grey
Item Dimensions
Height 17
Width 42
Length 21
Weight 31.59
Bestseller No. 7

EcoSmart 7.2 kW Electric Water Heater Booster Model # ECOTB240

Popularity Score 9
Quality Score 9.3
Sentiment Score 8.9

Highlighted Features

  • If you currently have 10 gauge wiring & 30 AMP breaker there is no addition feed required
  • Increase deliverable hot water up to 45%
  • Adjustable activation temperature 80-130F
  • Adjustable outlet temperature 80-140F
  • Nearly double your shower time

Additional Info :

Brand EcoSmart
Color Grey
Item Dimensions
Height 4
Width 44
Length 25
Weight 65.33
Bestseller No. 8

Hatco C-9-208-3-QS Booster Heater, Electric 208v/60/3-ph, 9kW

Popularity Score 8.9
Quality Score 9.1
Sentiment Score 9.4

Highlighted Features

Additional Info :

Brand Hatco
Color Off-white
Item Dimensions
Height 4
Width 42
Length 41
Weight 48.1
Bestseller No. 9

AO Smith 80 Gallon - 4,500 Watt ProMax Residential Electric Direct Solar Booster Water Heater

Popularity Score 9.4
Quality Score 9.6
Sentiment Score 9

Highlighted Features

Additional Info :

Brand AO
Color Off-white
Item Dimensions
Height 5
Width 39
Length 43
Weight 51.22
Bestseller No. 10

Hubbell 6 Gallon Booster Heater, 12.0 kW, 208V, 3 Phase Model J612R

Popularity Score 8.9
Quality Score 9.8
Sentiment Score 9.5

Highlighted Features

  • Hubbell - J612R - 6 Gal 12-KW Booster Heater
  • 6 Gal 12-KW Booster Heater
  • Hubbell
  • J612R

Additional Info :

Brand Hubbell
Color Off-white
Item Dimensions
Height 13
Width 28
Length 37
Weight 98.49
Bestseller No. 11

Hatco C-15-240-1-QS (QUICK SHIP MODEL) Compact Booster Heater

Popularity Score 9.8
Quality Score 9.2
Sentiment Score 9.1

Highlighted Features

  • INCLUDES MANUFACTURER'S ONE YEAR PARTS AND LABOR WARRANTY

Additional Info :

Brand Hatco
Color Grey
Item Dimensions
Height 6
Width 28
Length 23
Weight 20.82
Bestseller No. 12

BOKYWOX 110V Food Grade Automatic Domestic Booster Pump NPT 3/4'' 120W Circulate Boost Pressure Water Pump for Solar Heater/Faucet Stainless Steel 304(RS15-9 SB)

Popularity Score 9.2
Quality Score 9.8
Sentiment Score 9.1

Highlighted Features

  • 1.【Specific】: Voltage: 110V/60Hz; Max Flow: 30L/min(8GPM);Max Head:8.5m(27.88FT);Inlet/Outlet: NPT 3/4’’
  • 2.【Wide application】:It can be used to supply water and add pressure for mansions of city, villa of suburb, house, to match with insdustrial equipment, to supply water in cycle for cooling air-condition, boiler and solar energy, supply hot water and keep warm in cycle, it can add pressure for water faucet, shower head, toliet, water heater, solar heater, water tank,pipe, etc.
  • 3.【Features】: The pump is treated with special anti-rust treatment, high temperature resistance, corrosion resistance, anti-fraying,long life,no rust. No leakage, low noise, environmental protection, beautiful appearance, convenient installation, run responsible and so on.
  • 4.【Material】: The pump is equipped with a stainless steel pump head, aluminum motor shell, PE impeller, ceramic bearings
  • 5.【Forbidden Fluid】: Dangerous liquid which contains solid particles, fibre or oil stains is not allowed. Explosive, mucous or corrosive liquid is forbidden. Fluid temperature range: 0-100℃(0-212℉);Ambient Temperature: Permissible up to 40℃(104℉)

Additional Info :

Brand BOKYWOX
Color Multicolor
Item Dimensions
Height 16
Width 40
Length 40
Weight 61.9
SaleBestseller No. 13

EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology

Popularity Score 9.8
Quality Score 9.7
Sentiment Score 9

Highlighted Features

  • Endless On-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature
  • Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 11.5 x 8 x 3.75 inches
  • Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used.
  • EcoSmart ECO 11 Sizing; 13-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications; provides between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature; refer to the sizing guide to select the proper solution

Additional Info :

Brand EcoSmart
Color Off-white
Item Dimensions
Height 18
Width 27
Length 26
Weight 73.74
SaleBestseller No. 14

EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology

Popularity Score 9.1
Quality Score 9
Sentiment Score 9.3

Highlighted Features

  • The product is highly durable
  • The product is easy to use
  • Manufactured in China
  • Amperage (amps): 75. Activation flow: 0. 3 GPM. Flow Rate @ 35 F Rise (gallons/min): 3. 51 gal (US)/min
  • The product works and is compatible with 2 X 40 AMP (DP) breakers and 2 X 8 AWG wire

Additional Info :

Brand EcoSmart
Color Black
Item Dimensions
Height 10
Width 25
Length 28
Weight 70.58
SaleBestseller No. 15

Ecosmart ECO 24 24 KW at 240-Volt Electric Tankless Water Heater with Patented Self Modulating Technology, 17 x 17 x 3.5

Popularity Score 9.4
Quality Score 9.2
Sentiment Score 9.5

Highlighted Features

  • Lifetime warranty
  • Save up to 60-percent on your water heating cost with an ECOSMART electric tankless water heater
  • Never run out of hot water with an ECOSMART tankless water heater
  • Patented Self Modulating Technology and design.Activation flow 0.3 GPM
  • ECOSMART tankless water heaters are 99.8-percent energy efficient

Additional Info :

Brand Ecosmart
Color Off-white
Item Dimensions
Height 7
Width 25
Length 22
Weight 99.67
SaleBestseller No. 16

EcoSmart ECO 27 Tankless Water Heater, Electric, 27-kW - Quantity 1

Popularity Score 9.5
Quality Score 9.8
Sentiment Score 9.4

Highlighted Features

  • Endless on-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature
  • Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 17 x 17 x 3.75 inches 
  • Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used. Save up to 50% in water heating costs according to the Department of Energy
  • EcoSmart ECO 27 Sizing; Refer to the sizing map. Requires 3x40 AMP Double Pole Breaker, 27-kilowatt tankless electric water heater ideal for providing hot water for whole home applications; provides between 2.7 and 6.5 gallons-per-minute depending on the inlet water temperature; refer to the sizing guide to select the proper solution
  • Warranty and Certifications; Limited Lifetime Warranty on electronics, exchanger and element; UL-499 certified; ETL Listed

Additional Info :

Brand EcoSmart
Color White
Item Dimensions
Height 8
Width 29
Length 44
Weight 34.8
Bestseller No. 17

Rinnai RL94iP Non-Condensing Propane Tankless Water Heater, Indoor Installation, Up to 9.8 GPM

Popularity Score 9
Quality Score 9.3
Sentiment Score 9.7

Highlighted Features

  • Original Design: Tankless hot water heater's Circ-Logic technology offers recirculation patterns that match your habits; For the latest in non-condensing technology that speeds up service and installation, check out our new RE180iP model
  • Never Run Out of Hot Water with this Compact Propane Water Heater: Non-condensing tankless hot water heater from Rinnai is only the size of a small suitcase and fits in a wide variety of spaces, but provides up to 9.8 GPM (6 fixtures at once)
  • Smart, Durable Design: Includes 12-, 5-, and 1-year residential guarantee and 5-, 5-, and 1-year commercial factory warranty for heat exchanger, labor, and parts, respectively; See Controlr module for WiFi control (not included)
  • Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your tankless water heater; We do not recommend installing a water heater without a technician
  • Find Your Rinnai: See our product guides, manuals, energy guide, warranty information, videos, and tables to find the right tankless water heater for your home; Check our Ground Water Temperature Map to see if this heater is optimal for your region

Additional Info :

Brand Rinnai
Color Silver
Item Dimensions
Height 5
Width 32
Length 42
Weight 44.77
Bestseller No. 18

Ecosmart POU 3.5 Point of Use Electric Tankless Water Heater, 3.5KW@120-Volt, 6 x 11 x 3 Inch

Popularity Score 9.3
Quality Score 9.6
Sentiment Score 9.1

Highlighted Features

  • Can provide hot water for one sink at 0.5 GPM in warmer climates
  • Requires 1 x 30 amp breaker and 10 AWG wire
  • For one sink at 0.5 GPM in colder climates the POU 6 is recommended
  • Amperage Draw 29 amp. kW - 3.5 kW
  • Connection Fittings 1/2" NPT

Additional Info :

Brand Ecosmart
Color Grey
Item Dimensions
Height 15
Width 33
Length 44
Weight 51.21
SaleBestseller No. 19

Ecosmart POU 6 Point of Use Electric Tankless Water Heater, 6 KW,White,1/20, 1/40, 1/95

Popularity Score 9.8
Quality Score 9.3
Sentiment Score 9.2

Highlighted Features

  • Can provide hot water for one sink at 0.5 GPM in warmer climates
  • Requires 1 x 30 amp breaker and 10 AWG wire
  • For one sink at 0.5 GPM in colder climates the POU 6 is recommended
  • This product is recommended for use with a single sink only. Do not use with a shower or multiple fixtures.
  • This unit operates at 220 volts and one should not use a plug while installing. This product is hard wired

Additional Info :

Brand Ecosmart
Color Multicolor
Item Dimensions
Height 13
Width 45
Length 33
Weight 62.34
SaleBestseller No. 20

Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater

Popularity Score 9.8
Quality Score 9.1
Sentiment Score 9.4

Highlighted Features

  • Sleek and compact design with digital output temperature display
  • ECOSMART tankless water heaters are 99.8-percent energy efficient
  • Manufactured in United States
  • Pipe Fittings:3/4 inch NPT
  • Required Breaker:4 x 40 A

Additional Info :

Brand Ecosmart
Color White
Item Dimensions
Height 10
Width 23
Length 43
Weight 72.78

Why 1st Product is Best Compare to Others

1st product has many incredible facts over other products. That’s why we’ve ranked it on top of this list.

The excellent quality of a good product is that it will fulfill all the needs a user have and solve the real problem. These quality is exists on this product. Be understandable by users, perform users task as easily and efficiently as possible.

Bottom line, this product is finesse for use, features that meet consumer needs and give customer satisfaction and conformance to standards.

What To Look Before Buying Water Heater Booster

Here are all the detailed factors you must know before choosing the Water Heater Booster.

Material

It is extremely important to consider the product material to ensure risk-free performance. You should know the differences between food-grade and non-food-grade materials and how they affect your daily usage. Make sure high-quality material is used to manufacture the product and that it will be resistant to rust, corrosion, or everyday wear.

Cheaper options can come with low-quality materials. So, you need to avoid those products at any cost.

Build Quality

No matter how good the material is, the performance and durability of the product will also depend on how well they are composed together. You should check the product’s manufacturing process to ensure it has gone through proper treatment. Also, check whether the product has the necessary protection on the outer surface to keep it from scratches or smudges.

Once these are sorted, focus on how sturdy the joints are and whether they can withstand the pressure of daily use. Check whether every function works properly throughout the expected service life of the product. You may find many users reviews online to check these factors.

Originality

With the product’s increasing popularity, many counterfeited products are showing up to confuse users. You need to be careful about these products as they might show many faults after buying them. Always rely on genuine products even if they cost a bit more.

To check the authenticity, you can check the barcode on the product packaging on the manufacturer’s website. This will give you a quick idea of whether the product is genuine or counterfeited.

Features

In most cases, we are intrigued by the features of a Water Heater Booster. You should completely understand all the features and how they work before buying the product. Descriptions from manufacturers may only show the positive side of the product.

So, it is better to traverse through user reviews to check whether these features are of any good in daily use. Plus, the features should be easily accessible without many complications so that users of any age can use the product.

Installation

You may have a hard time installing the product if its specifications don’t match your requirements. So, check the specifications and installation guide before you buy the product. Make sure you have the right platform and tools to install the product.

One catch here is to get all the necessary accessories with the product. Check similar products and find out which product comes with the accessories, so you don’t need to buy them separately. In such cases, another fear is getting accessories that don’t match the product. So, be careful of that too.

Price and Warranty

We always suggest focusing on the price later but not avoiding it completely. Make sure the product possesses other factors, and then try to keep it within your budget. Also, check whether the product comes with enough warranty to keep yourself relaxed while using it.

FAQs

The following answers to some frequently asked questions may enlighten you more about Water Heater Boosters. Check them out.

Does the Water Heater Booster come in various designs?

Yes, you will find several variations of the product on the market. Besides the design, it will have a few colors and finish options to choose from. Pick the variation you see fit.

Does the Water Heater Booster have a refund policy?

You should check the manufacturer’s website to learn more about the refund policy. It should typically come with a 30-day refund period when you can claim a refund if the product has any manufacturing faults.

When to replace the product?

The product will run for a long time if you use it as instructed. When there is any issue with the mechanism, you may need to replace the product with a new one. Make sure to get it checked properly before replacing it.

How to maintain Water Heater Boosters?

You must check the instruction manual to know about proper maintenance. Clean the product in an adequate manner to prevent scratches on the surface. You can also blow the dust away at a certain interval to keep the inner components clean. Don’t disassemble any part while cleaning the product, as it can void the warranty.

The Bottom Line

Many people cherish the Water Heater Booster, but only those who know how to choose the product can avail of it. To get your hands on the best product on the market, you must research the value the product will deliver.

This becomes a bit difficult due to the fabricated reviews online that only show one side of the product. You should also check the flip side to ensure the product is worth the money. We developed a guideline for choosing the best Water Heater Booster by considering several factors before buying it.

These factors will ensure you get the right product for your needs without wasting money on something faulty or fake. Thoroughly check these factors to figure out whether the product stands out from the crowd and is worth the investment. After researching the product, spending time and effort will help you use it for a long time.

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