How much does water expand in a water heater?

• <div><p>Water expands when heated and also when freezing. When water is heated, it expands by around 4%. For a full water heater, this is one of the main reasons malfunctions occur—the hot water has nowhere else to go but out. Due to the constant expansion and reduction in volume, it’s recommended (required in most places) that an expansion tank be installed. </p></div>

How much water should come out when draining a water heater?

• <div><p>The average water heater holds between 40 and 60 gallons, but the exact amount of water that comes out during draining will depend on your unit’s capacity. The amount of <a href="https://www.angi.com/articles/how-long-drain-water-heater.htm">time it takes to drain a water heater</a> averages from 10 to 30 minutes.</p></div>

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Q: What is the life expectancy of a hot water recirculating pump?

• <div><p>A well-maintained hot water recirculating pump can last 5 to 15 years. Pumps that run continuously may have a shorter lifespan than demand-controlled models. Hard water can reduce longevity by causing mineral buildup in the pump and pipes. Regular maintenance, such as cleaning or replacing filters, can extend the pump&rsquo;s lifespan.</p></div>

Q: What maintenance is needed for a new water heater?

• <div><p>Flushing biannually, checking the anode rod, and temperature settings maximize equipment lifespan while reducing surprise costs.</p></div>

Q: How do I know when it's time to replace a hot water heater?

• <div><p>The <a href="https://www.angi.com/articles/when-should-i-replace-my-water-heater.htm">average lifespan of a water heater</a> is eight to 12 years. If your water heater is approaching its first decade of life and is giving you problems, talk to a plumber about your replacement options.</p><p>Keep in mind that certain parts of a water heater, such as the anode rod, may need replacement long before the heater itself. An anode rod often has a lifespan of three to five years.</p></div>

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Verified Reviews for Water Heater Service pros in Sheldon, IA

*The Angi rating for Water Heater Service companies in Sheldon, IA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.

*The HomeAdvisor rating for Water Heater Service companies in Sheldon, IA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.

Last update on August 07, 2025

Reviewed in August 2025
Done right on time imoroved utility bills Probably pay for its self in 8 years.
#1 Insulation Guys, LLC
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Reviewed in April 2024
Ordered a $200 replacement gun safe lock from them. It arrived with no paperwork at all. No instructions, no programming info - nothing but the device. I've tried contacting them 4 times now at 3 email addresses and no reply at all. I really regret ordering from them!
A1 Locksmith
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Reviewed in November 2023
Very well! They were very professional and helpful. Ended up buying a new washer and dryer as the washer issues were very difficult to fix. Recommend Heartland to all my friends!!
Heartland Appliance and Repair
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Reviewed in November 2021
Very friendly, honest trustworthy and clean up after themselves
Bristol Windows, Inc
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Reviewed in July 2021
Rick was easy to work with and suggested excellent quality windows. With the pandemic problem, they stayed in touch trying to get the windows from the manufacturer. The installation was quick and easy and done exceptionally well. I am very pleased with the product, the labor and the cost. I have...
Avalanche Construction Inc.
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Reviewed in April 2020
Polite worker and he just came on time. Showed me where the problem was with my laundry machine, and he fixed it with a good price.
Galbraith Electric, LLC
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Reviewed in March 2020
Arrived on time and done an excellent job. Very polite and conscience of what the job was. I would highly recommend Swick's Duct Cleaning
Swick's Duct Cleaning
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Reviewed in July 2019
Only had a couple questions about minor changes. They say will be back in a couple weeks to adjust. Thanks to all your crew.
Gutters Unlimited Elite Services, Inc.
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Reviewed in April 2015
There were issues with the water heater that should have been fixed by the provider that worked on it before. Cook did stick with it and eventually they replaced the water heater which was under warranty.
Cook Plumbing
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American Home Shield – Home Warranty

3.5(

5,688

)

Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Sheldon, IA and surrounding areas

In business since 1971

Credit card accepted

"He was very nice to talk with and repaired our washing machine. He even helped sweep the water out."

Recommended by65%of homeowners

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Water Heaters questions, answered by experts

A well-maintained hot water recirculating pump can last 5 to 15 years. Pumps that run continuously may have a shorter lifespan than demand-controlled models. Hard water can reduce longevity by causing mineral buildup in the pump and pipes. Regular maintenance, such as cleaning or replacing filters, can extend the pump’s lifespan.

Flushing biannually, checking the anode rod, and temperature settings maximize equipment lifespan while reducing surprise costs.

The average lifespan of a water heater is eight to 12 years. If your water heater is approaching its first decade of life and is giving you problems, talk to a plumber about your replacement options.

Keep in mind that certain parts of a water heater, such as the anode rod, may need replacement long before the heater itself. An anode rod often has a lifespan of three to five years.

Water expands when heated and also when freezing. When water is heated, it expands by around 4%. For a full water heater, this is one of the main reasons malfunctions occur—the hot water has nowhere else to go but out. Due to the constant expansion and reduction in volume, it’s recommended (required in most places) that an expansion tank be installed.

The average water heater holds between 40 and 60 gallons, but the exact amount of water that comes out during draining will depend on your unit’s capacity. The amount of time it takes to drain a water heater averages from 10 to 30 minutes.

The Sheldon, IA homeowners’ guide to water heater services

From average costs to expert advice, get all the answers you need to get your job done.

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