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>

Does a water softener ruin a water heater?

• <div><p>The chemicals in a water softener can wear down the anode rod in the heater and shorten its life span. However, for most people, the benefits of the softener outweigh this potential drawback.</p><p>Have a plumber inspect the anode rod annually for damage, as replacing the anode rod is far less expensive than replacing the entire water heater. </p></div>

Are hybrid water heaters noisy?

• <div><p>Yes, hybrid water heaters can be noisy — noisier than traditional water heaters. The sound they produce is often compared to the hum of a dishwasher. Its noise comes from the heat pump’s fan and compressor as they work to pull in and compress the air. While it’s not totally disruptive, especially if the unit is installed in less frequented areas, like a basement or garage, it’s something to keep in mind if you’re sensitive to noise or if the unit will be placed near bedrooms or living spaces.</p></div>

Get matched with top water heater pros in Atoka, OK

Q: Are hybrid water heaters noisy?

• <div><p>Yes, hybrid water heaters can be noisy &mdash; noisier than traditional water heaters. The sound they produce is often compared to the hum of a dishwasher. Its noise comes from the heat pump&rsquo;s fan and compressor as they work to pull in and compress the air. While it&rsquo;s not totally disruptive, especially if the unit is installed in less frequented areas, like a basement or garage, it&rsquo;s something to keep in mind if you&rsquo;re sensitive to noise or if the unit will be placed near bedrooms or living spaces.</p></div>

Q: How big should a hot water heater expansion tank be?

• <div><p>The size needed for your expansion tank is determined by the size of your home's water heater. Expansion tanks are available in 2-gallon and 4.5-gallon sizes. A 2-gallon tank will be appropriate for water heaters up to 50 gallons. An adequately sized tank should have a volume that equals 2% to 5% of the water volume within the system. A plumber can evaluate your home's water pressure, water heater size, and other factors to provide suggestions for picking out the best expansion tank.</p></div>

Q: Can you convert a gas water heater to electric?

• <div><p>You can convert a gas heater to electric, but it isn&rsquo;t as simple as swapping a plug or two. First of all, you need to make sure there&rsquo;s adequate power to the unit, as electric units require much higher power amounts versus gas. Then, you need to close off the gas lines and ventilation. Make sure you don&rsquo;t also need a permit for an electric water heater&mdash;some cities require it. Making the switch can cost upwards of<b> $1,500</b>.</p></div>

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Verified Reviews for Water Heater Service pros in Atoka, OK

*The Angi rating for Water Heater Service companies in Atoka, OK 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 Atoka, OK 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 November 22, 2025

Reviewed in January 2025
I have employed Wrights’s Perfection Plumbing for both small and large issues. The service has been excellent. I highly recommend Wrights’s Perfection Plumbing.
Wright's Perfection Plumbing
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Reviewed in August 2024
They are very personable and do a professional job. We have used them for many years with our rental homes as well as our personal home. Have been quick to respond. Good work.
Willco Plumbing
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Reviewed in May 2012
J and H Plumbing LLC was very responsive, courteous and professional. Would definitely use again.
J and H Plumbing LLC
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Reviewed in April 2011
We had five people out to look at it, and no one knew what was wrong. I called Hurst when I was having issues, and they were able to tell me over the phone what the problem was. I asked to have him come out to give me a hand. He came out and in about 10 minutes he had it fixed.
HURST PLUMBING
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Reviewed in April 2013
Overall, the service was great. They came in promptly and did the work swiftly. They fixed everything for us so that it was updated. They also fixed some duct work for us--they were very knowledgable.
Hanna Heating & Air Conditioning Co
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Reviewed in May 2012
They are honest, straightforward and I have used them several times over the years. They have been good at diagnosing our problems and letting us know what our options are. They don't try to sell me something I don't need and I will use them again in the future.
Caldwell Refrigeration
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Reviewed in January 2014
We have used Mason Plumbing ever since I moved to this location and they have always been responsive, competitive, and professional. That's a combination that is hard to beat.
Mason's Plumbing
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Reviewed in August 2011
Approximately 25 year old water heater was not performing well, inadequate hot water and such. Plumber arrived on time to inspect existing water heater. Not that difficult to determine the cause but once inspected he explained my options, clean heater core and hope for continued operation or...
Blackburn Plumbing LLC
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Reviewed in July 2012
Very professional. Very specific on quality and first time correctness. Does not try to over sale what needs done. Focused on just what ask for and problem area. I have used others but this is who I will go back to.
John's Plumbing
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Reviewed in January 2016
Scheduling was difficult. For some reason they didn't call me back to schedule the service call right away, supposedly because of an officer emergency(??). The technician was thorough and did a good job.
Dieterle Plumbing & Heating
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Find Water heater pros in Atoka

Neli Virtual Appliance Repair

Neli Virtual Appliance Repair

Customers say: Super punctual

Recommended by 94% of Angi customers

29534 local quotes requested

NEW! Appliance Consultation – Just $35 Get expert advice before you spend on repairs or replacements. A Neli technician will evaluate your issue and help you decide if your appliance can be fixed—or if it’s time for a new one. Virtual Appliance Diagnosis and Repair - Just $45 Service Description: Diagnose or repair your appliance virtually—no need for anyone to enter your home. Neli’s certified technicians guide you step-by-step via secure video chat. How It Works: Book online at nelihome.com or call 833-876-0900 Connect with a tech through our video platform Diagnose or fix the issue in real time Get expert advice and confidence in your next steps What’s Included: Real-time video guidance from a certified technician Diagnosis of the issue OR full repair (when possible) Step-by-step guidance using your smartphone or tablet Safe, contact-free service - no one in your home Flexible scheduling—appointments available daily Perfect For: Appliance fixes HVAC troubleshooting DIY-savvy homeowners Saving time and money on service calls

"Did a great job "

Don F on November 2025

"Did a great job "

Don F on November 2025

Happy at Home Plumbing LLC.

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Happy at Home Plumbing LLC.

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Free onsite estimate

Engages in the provision of plumbing services, including installation, repair, and maintenance of plumbing systems for residential and commercial clients. Specializations include pipe repairs, fixture installations, and water heater services.

M Baker Enterprises LLC

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M Baker Enterprises LLC

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We specialize in all types of excavation and concrete including building pads, foundations, utilities, sidewalks, and roadways both residential and commercial. We do quality work we are proud of.

Krell Distributing Co Inc

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Krell Distributing Co Inc

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53 years of experience

Additional DBA - Krell Industries. Family owned & operated. Nationwide service.

Solar Wolf Energy

2.00(

)

Solar Wolf Energy

2.00(

)

10 years of experience

Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!

Wilkey Plumbing

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Wilkey Plumbing

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Emergency services offered

Wilkey Plumbing is owned and operated by father and son, Darren and Chase Wilkey. Licensed in Oklahoma for commercial and residential plumbing.

Okie Plumbin Services

5.00(

)

Okie Plumbin Services

5.00(

)

Recommended by 100% of Angi customers

Locally owned and operated in Sulpher since 1994. Okie Plumbin' Services specializes in general plumbing, commercial or residential. Offering over 20 years of experience, Okie exceptional customer service and guaranteed satisfaction.

All Service Handy

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All Service Handy

No reviews yet

13 years of experience

All Service Handy is a privately owned company established on March 25, 2012. A.S.H. is a proffesional handyman business which provides general contracting for a broad range and variety of jobs for home improvement and construction. All of us here at A.S.H. take pride in our work offering our personal time to ensure and develop a friendly relationship and a comfortable experience. We strive to continue being a leader and example in providing excellent customer satisfaction and 100% QUALITY guaranteed.

Showing 1-10 of 33

Water Heaters questions, answered by experts

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 chemicals in a water softener can wear down the anode rod in the heater and shorten its life span. However, for most people, the benefits of the softener outweigh this potential drawback.

Have a plumber inspect the anode rod annually for damage, as replacing the anode rod is far less expensive than replacing the entire water heater.

Yes, hybrid water heaters can be noisy — noisier than traditional water heaters. The sound they produce is often compared to the hum of a dishwasher. Its noise comes from the heat pump’s fan and compressor as they work to pull in and compress the air. While it’s not totally disruptive, especially if the unit is installed in less frequented areas, like a basement or garage, it’s something to keep in mind if you’re sensitive to noise or if the unit will be placed near bedrooms or living spaces.

The size needed for your expansion tank is determined by the size of your home's water heater. Expansion tanks are available in 2-gallon and 4.5-gallon sizes. A 2-gallon tank will be appropriate for water heaters up to 50 gallons. An adequately sized tank should have a volume that equals 2% to 5% of the water volume within the system. A plumber can evaluate your home's water pressure, water heater size, and other factors to provide suggestions for picking out the best expansion tank.

You can convert a gas heater to electric, but it isn’t as simple as swapping a plug or two. First of all, you need to make sure there’s adequate power to the unit, as electric units require much higher power amounts versus gas. Then, you need to close off the gas lines and ventilation. Make sure you don’t also need a permit for an electric water heater—some cities require it. Making the switch can cost upwards of $1,500.

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