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Can a Water Heater Explode?

Understanding the Risks of Water Heater Explosions

Water heaters are important for maintaining comfort and sanitation in your home. However, they come with some potential risks if they are not maintained. Do you wonder if your water heater can possibly explode? Although the answer is yes, the good news is that water heater explosions are rare. Also, they are usually preventable. Keep reading to learn about the warning signs and how to prevent an explosion.

Why Water Heaters Explode

These are some reasons why a water heater may explode.

Sediment

Magnesium and calcium settle at the bottom of water heater tanks and cause buildup over time. The layer they form can cause the heating element to work harder and overheat, which leads to excess pressure. If the issue is not addressed, the water heater can rupture or explode. Flushing the tank regularly can help reduce sediment buildup.

Overheating

This is one of the most common causes of water heater explosions. Most units are set between 120 degrees and 140 degrees Fahrenheit. However, thermostats can malfunction and cause overheating. If this happens, steam pressure builds up and can cause an explosion.

Faulty T&P Valve

The T&P valve is responsible for opening up if the tank’s pressure reaches unsafe levels. This valve can become corroded or clogged. It may also fail for other reasons. If it stops functioning, the tank can explode or rupture.

Gas Leak

If you have a gas-powered unit, a gas leak close to the ignition source can cause an explosion. Inspecting your gas lines and connections regularly can reduce this risk.

Incorrect Installation or Improper Maintenance

Installing a water heater without proper ventilation can lead to pressure buildup in the tank. Also, not maintaining your water heater greatly increases its risk of exploding.

Warning Signs of a Water Heater That May Explode

If your water heater is about to explode, there may be warning signs. These are some common signs.

Leaking Water

Check the floor around the unit for leaking water. Although leaks can indicate other issues, they are often caused by faulty valves or corrosion. Call a professional to assess the water heater and determine the cause of the leak.

Odd Sounds

Water heaters that make popping or rumbling sounds often have sediment buildup. When water gets trapped below the sediment, it causes overheating and bubbling. This is what produces strange noises. Have a professional inspect the unit.

Steaming T&P Valve

When the pressure reaches dangerous levels, the T&P valve may have steam coming from it. Although it may happen occasionally, it is not something that should happen often. If it does, call a professional immediately.

Sulfur Smell

If there is a gas leak, you may notice the smell of rotten eggs. Gas companies add sulfur to natural gas to make it easier to detect leaks. If you notice this smell, turn off your gas supply and leave the house immediately. Call a professional to assess the problem before you or any other home occupants go back indoors. Gas leaks are especially dangerous and must be addressed immediately.

T&P Valve Corrosion

Rust or corrosion on a T&P valve can cause it to function incorrectly. Call a professional if your T&P valve is corroded. It may need to be replaced.

Tips for Preventing a Water Heater Explosion

These are some ways to keep your water heater functioning better and reduce explosion risks.

Flush the Tank

Flush your water heater at least once each year. This helps remove sediment and minimize buildup at the bottom of the tank, which can reduce overheating risks. Many people can complete this task on their own. However, if you are uncomfortable doing this, call a professional to handle flushing.

Check the Valve

Test your T&P valve to make sure it works properly. If the valve does not release steam or water during testing, it likely has issues that warrant replacement. Have a professional inspect it immediately.

Inspect Your Unit

Have a professional inspect your water heater at least once every year. A plumber can check for sediment buildup, T&P valve issues, and gas leaks. Regular inspections help professionals find small issues before they worsen and become major safety hazards.

Monitor the Temperature

Be sure that your water heater’s temperature range is between 120 degrees and 140 degrees Fahrenheit. Higher temperatures increase overheating, pressure, and explosion risks.

Promptly Address Leaks

If you see water dripping below your tank, call a professional immediately. Waiting until it worsens can lead to additional corrosion or pressure buildup. A professional can make repairs or recommend a replacement.

Professional Water Heater Services in Gainesville

Has it been a while since your water heater was inspected? Whether you have concerns or an existing problem, the team at Benjamin Franklin Plumbing can help. We can assess the condition of your tank, inspect the valve, and look for gas or water leaks. Benjamin Franklin Plumbing has licensed, experienced plumbers who know how to identify and fix issues with a variety of water heater sizes and brands. Our commitment to thorough service gives you the peace of mind you deserve. Please contact us to learn more about water heater services in Gainesville, Florida.