The 8 Best Hot Water Furnace Expansion Tank

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  • The 8 Best Hot Water Furnace Expansion Tank
  • The 8 Best Hot Water Furnace Expansion Tank
  • The 8 Best Hot Water Furnace Expansion Tank
  • The 8 Best Hot Water Furnace Expansion Tank
  • The 8 Best Hot Water Furnace Expansion Tank
  • The 8 Best Hot Water Furnace Expansion Tank
  • The 8 Best Hot Water Furnace Expansion Tank

Nowadays, there are so many products of hot water furnace expansion tank in the market and you are wondering to choose a best one. You have searched for hot water furnace expansion tank in many merchants, compared about products prices & reviews before deciding to buy them.

You are in RIGHT PLACE.

Here are some of best sellings hot water furnace expansion tank which we would like to recommend with high customer review ratings to guide you on quality & popularity of each items.

46,420 Reviews Scanned
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9.3
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$31.54$45.05$56.76

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7.8
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$33.05$47.22$64.69

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5
7.1
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$25$35.71$47.85

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6
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$18.89$26.98$38.58

AMTROL ST-5 Thermal Expansion Tank

$31.54$45.05$56.76
Last update was on: Tuesday, January 7, 2020

Product Description

AMTROL ST-5 Thermal Expansion Tank

From the Manufacturer

Amtrol invented the thermal expansion tank to control pressure build-up in closed, hot water systems. This prevents the water heater pressure relief valve from opening, saves energy and eliminates a potential safety hazard. All Therm-X-Trol expansion tank

Flextrol FTT5 Thermal Expansion Tanks-for Hot Water Heaters, Carbon Shell, Stainless Steel 3/4 Inch MIP Connection, Butyl Diaphragm, 150 PSI, 210 Degrees Fahrenheit, Almond Color, 2.1 Gallons

$27.69$39.56$47.87
Last update was on: Tuesday, January 7, 2020

Size:2.1 Gallons |  Color:Almond

What is Thermal Expansion?
When heated, water expands. Under normal circumstances, a 40 Gallons hot water heater creates roughly an additional half gallon of water when heated (with no demand). In the past this expanded water would flow back into the public water supply. However, in many countries, where applicable by code, a backflow preventer is required, creating a closed system and a new problem as this extra half gallon of water is not compressible. When an expansion tank is installed the excess water enters the pre-pressurized tank. As the temperature and pressure reaches its maximum, the diaphragm flexes against an air cushion (air is compressible) to allow for increased water expansion. When the system is opened again or the water cools, the water leaves the tank and returns to the system.

Potential Problems Without an Expansion Tank

  • Premature failure of the water heater may void the warranty of the water heater
  • Dangerous high pressure
  • leaky fittings and valves
  • collapsed center flues
  • flames out of combustion chamber
  • Unnecessary Relief Valve Discharge

Installation Options for Thermal Expansion Tanks

  • Install on the cold water side after the pressure reducing valve and between the backflow preventer and the water heater
  • Do not install in an area where leakage could cause property damage
  • The tank can be installed either vertically or horizontally. However, if the tank is to be installed horizontally, then it must be fully supported independent from the piping. Failure to do so will void the warranty.

Technical Features

  • All tanks are NSF61 Certified
  • MIG welding eliminates interior rough spots and sharp edges
  • Each tank is factory leak tested
  • 150 PSI Max pressure rating
  • External baked epoxy-polyester coating provides a durable appliance finish
  • Exclusive polypropylene liner eliminates internal corrosion
  • Protected precharge valve eliminates potential leak path

Material Description

  • Shell: Carbon Steel
  • Connection: Stainless steel
  • Diaphragm: Butyl
  • Color: Almond

Operating Conditions

  • Max. Operating Pressure: 150 PSI
  • Operating Temperature: 210 Degrees Fahrenheit
  • Factory Precharge: 40 PSI
  • Warranty: 1 Year

Specifications

  • Model Number: FTT5
  • Tank Size: 2.1 Gallons
  • Tank Weight: 6 Pounds
  • Connection Size (National Pipe Thread): 3/4" Male Iron Pipe (MIP)
  • Dimensions (LxWxH): 13" x 9" x 9"
  • Acceptance Volume: 1.4 Gallons
  • UPC Code: 80459513077

Similar items with 4 stars and above

Flextrol FTH30 Hydronic Expansion Tanks-for Hot Water Heaters, Carbon Steel Shell 3/4 Inch MIP Connection, SBR Synthetic Rubber, 60 PSI, 210 Degrees Fahrenheit, Gray Color, 4.8 Gallons

$27.99$39.99$44.79
Last update was on: Tuesday, January 7, 2020

Size:4.8 Gallons |  Color:Gray

What is Hydronic Expansion?
Hydronic expansion tanks are diaphragm type tanks designed to keep system pressures below relief valve settings. Hydronic expansion tanks absorb the expansion of water in residential or commercial hydronic (forced hot water) heating and cooling systems. Without hydronic expansion tanks, the system will quickly over-pressurize resulting in added stress to the various system components. Hydronic expansion tanks protect safety valves from failing or wearing out quickly, avoids valve stem and ball seal leaks, prevents wasted BTU’s and vastly extends water heater life.

Technical Features

  • Certified synthetic SBR rubber diaphragm
  • MIG welding eliminates interior rough spots and sharp edges
  • Each tank is factory leak tested to ensure tank integrity
  • All diaphragms designed to maximize drawdown
  • External baked epoxy-polyester coating provides a durable appliance finish
  • Welded side outlet allows easy and quick installation
  • Protected pre charge valve eliminates potential leak path
  • Low profile tank design with full membrane depth eliminates stretching of diaphragm, providing increased life cycle

Additional Description

  • Shell: Carbon Steel
  • Connection: Carbon Steel
  • Diaphragm: SBR Synthetic Rubber
  • Color: Gray

Operating Conditions

  • Max. Operating Pressure: 60 PSI
  • Operating Temperature: 210 Degrees Fahrenheit
  • Factory Precharge: 12 PSI
  • Warranty: 1 Year

Specifications

  • Model Number: FTH30
  • Tank Size: 4.8 Gallons
  • Tank Weight: 6.8 Pounds
  • Connection Size (National Pipe Thread): 1/2" Male Iron Pipe (MIP)
  • Dimensions (LxWxH): 12" x 12" x 16"
  • Acceptance Volume: 3.0 Gallons
  • UPC Code: 80459513075

AMTROL 102-1#30 EX-30 30 Extrol Expansion Tank

$33.05$47.22$64.69
Last update was on: Tuesday, January 7, 2020

Size:one-size

Product Description

Amtrol Inc. designed and patented the first Extrol diaphragm expansion tank in 1954 to control system pressure and help reduce energy consumption in heating and chilled water systems. Over six decades later, Extrol is still the world’s leading expansion

From the Manufacturer

Amtrol Inc. designed and patented the first Extrol diaphragm expansion tank in 1954 to control system pressure and help reduce energy consumption in heating and chilled water systems. Over six decades later, Extrol is still the world’s leading expansion

AMTROL EX-15 15 Extrol Expansion Tank

$25$35.71$47.85
Last update was on: Tuesday, January 7, 2020

Product Description

Amtrak Inc. designed and patented the first Extol diaphragm expansion tank in 1954 to control system pressure and help reduce energy consumption in heating and chilled water systems. Over six decades later, Extol is still the world’s leading expansion.

From the Manufacturer

Amtrol Inc. designed and patented the first Extrol diaphragm expansion tank in 1954 to control system pressure and help reduce energy consumption in heating and chilled water systems. Over six decades later, Extrol is still the world’s leading expansion

Watts ETX-30 4.7-Gallon Non-Potable Expansion Tank for Closed-Loop Systems

$23.8$34$44.88
Last update was on: Tuesday, January 7, 2020

Product Description

Use the Watts series ETX water expansion tank in tandem with your hot water heater to absorb increased water volume resulting from hot water boiler heating and keep system pressure below the relief setting. Use in closed-loop, non potable water heating systems. Durable steel tank with 60 psi maximum working pressure.

From the Manufacturer

Use the Watts series ETX water expansion tank in tandem with your hot water heater to absorb increased water volume resulting from hot water boiler heating and keep system pressure below the relief setting. Use in closed-loop, non potable water heating systems. Durable steel tank with 60 psi maximum working pressure.

Watts ETX-15 2.1-Gallon Non-Potable Expansion Tank for Hydronic Heating Systems

$37.72$53.88$78.13
Last update was on: Tuesday, January 7, 2020

Size:2.1 Gallon

Product Description

This 2.1 gallon non-potable water expansion tank is for use in commercial and residential closed loop hydronic heating system piping to control the thermal expansion of hot water and maintain system pressure below the relief setting of the relief valve. The pre-pressurized steel tank features a durable expansion membrane that prevents contact of the water with the air in the tank. This rugged diaphragm minimizes loss of the air change and ensures long and trouble-free life for the system. Maximum pressure is 60 psi (4.1 bar).

From the Manufacturer

Use the Watts series ET water expansion tank in tandem with your hot water heater to absorb increased water volume resulting from hot water boiler heating and keep system pressure below the relief setting. Use in closed-loop, non potable water heating systems. Durable steel tank with 60 psi maximum working pressure.

Amtrol 700-C Automatic Air Vent

$18.89$26.98$38.58
Last update was on: Tuesday, January 7, 2020

The Amtrol 700-C is an air vent that bleeds the air out of the boiler piping. Screws into 1/8″ NPT in the Air Purger.

Our Promise to Readers

We keep receiving tons of questions of readers who are going to buy hot water furnace expansion tank, eg:

  • What are Top 10 hot water furnace expansion tank for 2020, for 2019, for 2018 or even 2017 (old models)?
  • What is Top 10 hot water furnace expansion tank to buy?
  • What are Top Rated hot water furnace expansion tank to buy on the market?
  • or even What is Top 10 affordable (best budget, best cheap or even best expensive!!!) hot water furnace expansion tank?…
  • All of these above questions make you crazy whenever coming up with them. We know your feelings because we used to be in this weird situation when searching for hot water furnace expansion tank.
  • Before deciding to buy any hot water furnace expansion tank, make sure you research and read carefully the buying guide somewhere else from trusted sources. We will not repeat it here to save your time.
  • You will know how you should choose hot water furnace expansion tank and What you should consider when buying the hot water furnace expansion tank and Where to Buy or Purchase the hot water furnace expansion tank. Just consider our rankings above as a suggestion. The final choice is yours.
  • That’s why we use Big Data and AI to solve the issue. We use our own invented, special algorithms to generate lists of Top 10 brands and give them our own Scores to rank them from 1st to 10th.
  • You could see the top 10 hot water furnace expansion tank of 2020 above. The lists of best products are updated regularly, so you can be sure that the information provided is up-to-date.
  • You may read more about us to know what we have achieved so far. Don’t hesitate to contact us if something’s wrong or mislead information about hot water furnace expansion tank.

Conclusion

By our suggestions above, we hope that you can found hot water furnace expansion tank for you.Please don’t forget to share your experience by comment in this post. Thank you!

10 Total Score
Excellent

Best hot water furnace expansion tank: Top-Rated Brands & What to Buy

User Rating: 4.5 (525 votes)