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The Best Hot Water Expansion Tank of 2023 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best Hot Water Expansion Tank of 2023. Check our ranking below.

2,032 Reviews Scanned

Rank No. #1
Eastman 60022 60022/DET-5 2 Gallon Expansion Tank, White
  • RELIABLE PROTECTION: Eastman thermal expansion tanks are designed with quality to prevent hot water from backflowing into the cold water line, they also avoid pressure build-ups that can be dangerous for your water heater
  • DESIGN: This 2-gallon thermal expansion tank has a dimension of 12. 4-inches x 8. 3-inches and it's indicated for use in water heaters and boilers with a capacity of 30-gallons to 50-gallons
  • FACTORY PRECHARGED: The expansion tank is factory precharged at 40 psi, this setting can be adjusted during installation to match the water pressure of your home
  • DURABILITY: Manufactured with high-quality butyl rubber diaphragm and 304-stainless steel fittings for a long performance
  • QUALITY: Eastman backs the unparalleled operation of this product with years of experience in manufacturing plumbing products
Rank No. #2
TT FLEX Potable Thermal Expansion Tank for Water Heater - 2.1 Gallon, 3/4 in MNPT Connection
  • TT FLEX water expansion tank is finished with appliance quality paint which helps prevent external corrosion and rust.
  • This expansion tanks feature a 100% butyl diaphragm and plastic liner to separate the system water from the tanks air precharge.
  • Inline thermal expansion tank,accepts expanded water caused by thermal expansion.
  • Returns water to the system when hot water is used,it prevents the relief valve from going off.
  • Easy to Install: The tank's compact size and easy-to-install design make it an ideal choice for both professional contractors and DIY enthusiasts alike. With its simple installation process, you can quickly and easily add this expansion tank to your system.
SaleRank No. #3
Watts Water Technologies GIDDS-1030401 Non-Potable Water Expansion Tank, Gray
  • This potable water expansion tank is used on gas, oil, or electric, direct-fired, residential water heater and hot water storage tanks to absorb the increased volume of water created by thermal expansion
  • The carbon steel tank is pre-charged at 20 psi, has a 2.1 gallon volume, and features a durable expansion membrane preventing minimizes loss of the air change and ensures long and trouble-free life for the system
  • Made of copper lined steel with epoxy finish, mounts to supply piping, with 3/4 -inch MNPT system connection and .302-32 inch charging valve connection for on-site charging of the tank
  • Maximum pressure 150 psi and can be used in residential or commercial hydronic heating systems
  • Use in tandem with your hot water heater to absorb increased water volume ensuring long and trouble-free life for the system
Rank No. #4
Flexcon Industries PH5 FLEX2PRO Thermal Expansion Tank - 2.1 Gallon
  • PH tanks feature a 100% butyl diaphragm and plastic liner to separate the system water from the tank’s air precharge
  • The system connection has a stainless steel nipple to prevent corrosion, something so other manufacturer offers
  • Tanks are finished with appliance quality paint which helps prevent external corrosion
  • Volume: 2.1 Gallons
SaleRank No. #5
AMTROL ST-5 Thermal Expansion Tank
  • Accepts expanded water caused by thermal expansion
  • Returns water to the system when hot water is used
  • Prevents the relief valve from going off
  • Inline thermal expansion tank
  • Accepts expanded water caused by thermal expansion
SaleRank No. #6
Watts ETX-30 Non-Potable Water Expansion Tank 1/2 in MNPT Connection, 4.5 gallon, Gray
  • This non-portable water expansion tank is for closed loop hydronic heating system piping to control the thermal expansion of hot water and maintain system pressure below the relief sett of the relief valve
  • The carbon steel tank is pre-charged at 12 psi, has a 4.5 gallon volume, and features a durable expansion membrane preventing minimizes loss of the air change and ensures long and trouble-free life for the system
  • Made of carbon steel with epoxy finish, mounts to supply piping, with 1/2 inch MNPT system connection and .302-32 inch charging valve connection for on-site charging of the tank
  • Maximum pressure 60 psi and can be used in residential or commercial hydronic heating systems
  • Use in tandem with your hot water heater to absorb increased water volume ensuring long and trouble-free life for the system
Rank No. #7
Amtrol T-5 THERM-X-SPAN Expansion Tank
  • Eliminates the waste of energy and water, thus saving money
  • Prevents the relief valve from going off
  • Protects the water heater and Plumbing Fixtures from premauture failure
  • Prevents a dangerous pressure build-up in the system
Rank No. #8
Thrifco 4906032 2 Gallon Thermal Expansion Tank for Potable Water Heater
  • ✅ Designed for use with residential closed water systems
  • ✅ Butyl diaphragm system absorbs the expansion of water volume
  • ✅ Protected pre-charge valve eliminates potential leak path
  • ✅ Prevents dangerous pressure build up, protects household appliances and fixtures
  • ✅ External baked epoxy-polyester coating provides a durable appliance finish
Rank No. #9
2 Gallon Accumulator Expansion Tank With Wall Mount Bracket 1/2" Female NPT
  • 2 Gallon 1/2" Female NPT
  • Custom Wall Brackets Included
  • Max Liquid Pressure: 130 PSI
  • Pre-Pressurized Air: 30 PSI
  • Applications: Used on gas, oil, or electric, direct-fired, residential water heater, and potable water storage applications to absorb the increased volume of water created by thermal expansion.
Rank No. #10
Easyflex EF-TET-2 Stainless Steel Thermal Expansion Tank, 3/4" MIP Connection, 2 gal
  • 100% Heavy Duty Butyl Rubber Diaphragm
  • Stainless Steel connection minimizes corrosion
  • 16 Gauge Solid Steel Shell
  • High Quality Urethane Paint Coating
  • Field Adjustable Pre-charged Pressure
Rank No. #11
Zurn XT-8 - Thermal Expansion Tank
  • Water thermal expansion tank - 2. 1 Gal
  • Diaphragm style tank for residential applications
  • Steel shell protected with polypropylene liner
  • Pre-charge is field adjustable
  • Low-lead law compliant
Rank No. #12
Amtrol ST-12 Thermal Expansion Tank
  • Eliminates the waste of energy and water, thus saving money
  • Prevents the relief valve from going off
  • Protects the water heater and plumbing fixtures from premauture failure
  • Eliminates the waste of energy and water, thus saving money
  • Prevents a dangerous pressure build-up in the system
Rank No. #13
PROFLO PFXT5 PROFLO PFXT5 2 Gallon Thermal Expansion Tank
  • Constructed of steel ensuring durability and dependability
  • High quality finish will resist rust and corrosion through everyday use
  • Capacity: 2 gallons
  • Width: 8"
  • Depth: 8"
Rank No. #15
PROFLO PFXT1SS PROFLO PFXT1SS 1/2 Inch NPT Stainless Steel Expansion Tank
  • Space-saving, compact design stainless steel expansion tank and shock arrestor for tankless and POU water heaters with 2 gallons or less of total water volume
  • Designed to protect the heat exchanger on tankless water heaters by relieving excess pressure in the system
  • Tank includes a 40 psi factory precharge but can be adjusted in the field
  • Entire tank is constructed of 304 stainless steel
  • 1/2" NPTM 304 stainless steel connection
Rank No. #16
Universal Water Heater Expansion Tank Wall Mounting Bracket,5 Gallon Tank or 13 inch Diameter Pole Holder Brackets, Water Heater Earthquake Straps for Nitrogen Tank,Propane Tank-1 Set
  • 【Expansion Tank Bracket】: The expansion tank mounting bracket is adjustable and can be suitable for the thick rod with a maximum diameter of 13 inches. Therefore, you can adjust the size according to the different diameters. Simple installation can easily fix the expansion tank of the water heater to the place where you want it to appear.
  • 【Quality and Sturdy】: The expansion tank bracket is made of reliable metal materials, with strong bearing capacity and safe use; The water heater strap is durable, not easy to deform, waterproof, rust-proof, anti-corrosion, and reusable.
  • 【Multi-Purpose】: The mounting bracket for water heater expansion tank can also be used to fix the circular bucket objects in the home, such as propane tank, nitrogen tank, gallon bucket, etc. The water heater straps has a large adjustable range and is very convenient to install and disassemble.
  • 【Simple Installation】: The screw mechanism of the tank mounting bracket is very ingenious. You align them with the belt and fix them in the proper position until the tension prevents them from sliding out of the thread, making it easy to start and tighten the slotted belt. Every family should reserve some water heater expansion tank mounting brackets for daily use.
  • 【Quality Guarantee】:If there is any quality problem, please feel free to contact us. Refund or Replacement for any quality problem.
Rank No. #17
ZEP-1 Stainless Steel Thermal Expansion Tank
  • Application:Plumbing
  • Material:Stainless Steel
  • Connection Size:1/2"
  • Connection Type:Threaded
  • Max Pressure (PSI):150
Rank No. #18
THERM-X-TROL ST-5 Expansion Tank
  • Tank Volume:2 Gallons
  • Max Accept. Factor:0.45
  • Diameter (Inches):8"
  • Height:12-5/6"
  • Weight (lbs):5 lbs
SaleRank No. #19
HoldRite QuickStrap Universal Expansion Tank Water Heater Wall Mounting Bracket, Stainless Steel, QS-U
  • HOLDRITE EXPANSION TANK BRACKET: The water heater tank mounting bracket features straps that secure the water tank to the wall and take weight load off thermal pipes
  • WHAT IS INCLUDED: The water heater wall mount kit includes (1) mounting bracket, (2) support straps, and (2) screws
  • COMPATIBILITY: Water heater mounting bracket can support 5-gallon hot water tanks up to 13 inches in diameter
  • DURABLE: Heated water tank brackets are composed of strong and sturdy galvanized stainless steel
  • CERTIFIED: Water heater mounting brackets are compliant with Uniform Plumbing Code and International Plumbing Code requirements

Last update on 2024-02-18 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

How Do You Buy The Best Hot Water Expansion Tank?

Do you get stressed out thinking about shopping for a great Hot Water Expansion Tank? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching Hot Water Expansion Tank, which is why we have assembled a comprehensive list of the greatest Hot Water Expansion Tank available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Hot Water Expansion Tank that you consider buying. Your questions might include the following:

  • Is it worth buying an Hot Water Expansion Tank?
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  • Which Hot Water Expansion Tank are good in the current market?
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Potential sources can include buying guides for Hot Water Expansion Tank, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Hot Water Expansion Tank. Make sure that you are only using trustworthy and credible websites and sources.

We provide an Hot Water Expansion Tank buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Hot Water Expansion Tank currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of Hot Water Expansion Tank has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Hot Water Expansion Tank?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Hot Water Expansion Tank.
  5. Customer Ratings: Number ratings grade Hot Water Expansion Tank objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Hot Water Expansion Tank.
  7. Product Quality: You don’t always get what you pay for with an Hot Water Expansion Tank, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Hot Water Expansion Tank is should be an indication of how long it will work out for you.

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FAQ:

Q: Is an expansion tank really necessary for a hot water heater?

A: From a building code perspective, expansion tanks are not required for tankless water heaters where no storage tank for hot water is installed. In most cases, they are used as a preventative measure to prolong the life of your water heater and reduce the risk of ‘overworking’ your plumbing system.

Q: Why must a hot water heater have an expansion tank?

A: Because it reduces pressure, an expansion tank prolongs the life of your water heater. In fact, some manufacturers may void your water heater warranty if you have a closed plumbing system without an expansion tank.

Q: How do you install an expansion tank on a hot water heater?

A: How to Install a Hot Water Expansion Tank Step 1 – Shut off the Water Supply Step 2 – Turn off the Power Supply Step 4 – Size of the Expansion Tank Step 5 – Other Accessories Step 6 – Cold Water Supply Line Step 7 – Placing the Expansion Tank Step 8 – Fix the Tank Step 9 – Tee Fitting Step 10 – Connect the Tank Step 11 – Water and Power Supply

Q: What are the symptoms of a bad expansion tank?

A: There are several signs of thermal expansion tank problems. One of these signs is slow flowing or low-pressure water coming from your water heater. This can be a sign of mineral buildup and of your expansion tank failing. Another sign of expansion tank problems is condensation.

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