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5 Signs Your Water Heater is Going to Explode

Water heaters have evolved into a necessary part of our daily life. But even though you rarely consider it, the water heater is actually a ticking time bomb. It has the ability to explode and destroy your home. 

What are the signs your water heater is going to explode?

There are several warning signs that your water heater is about to blow up. This includes leaking pressure valves, the smell of rotten eggs, or the rusty brown water. Regularly servicing your heater and maintaining a lower temperature can both be quite effective in preventing this deadly incident.

Sounds like you need more details on the topic? Don’t worry our article will take you through all the details you need. Read along to find out!.

Why Do Water Heaters Explode? 

Now, why would a water heater suddenly explode? There’s actually a couple of different reasons behind this. 

Water heater explosions mostly occur because of excessive pressure. More specifically when the high temperature and pressure reaches a dangerous level T & P valve can’t solve it.

Similarly, an explosion can be caused because of sediment, which is the minerals from the hard water. These sediments sink at the tank’s bottom, separating water from the burner. This results in overheating and deterioration of the tank.

An old anode rod can also cause excess pressure on the system. Steel is used to make water heaters, and anode rods are used to keep them from rusting. But with time the rod starts deteriorating. As a result, the water heater starts to rust and eventually explodes.

5 Signs of Water Heater Explosion! 

The aftereffect of a water heater explosion is devastating. It’s better to not wait for a disaster to occur and take precautions beforehand. Here are 5 warning signs of water heater explosion- 

Knocking or Popping Sounds

With time, minerals usually gather at the base of water heaters. Air and water get trapped beneath these excessive sediments at the bottom.

This causes a buildup of pressure and tends to make popping sounds inside the tank. Like excessive water pressure, this has the potential to blow out your water heater.

Rusty Brown Water

You need to call for professional service if you see rusty brown water is coming out of the water heater. Don’t mistake this as a similar problem like foamy water from a new hot water heater. 

Brown water is a clear indication that your heater might explode at any given time. This happens due to the buildup of rust or sediment in your heater tank.

The Smell of Rotten Egg

The stinking smell of rotten eggs is generally caused by sulfur emissions. This is an indication of a gas leak.

Water heaters have pilot flames inside them. If the sulfur comes in contact with the flame, it will cause a huge explosion within minutes. If you notice this odor near the water heater, contact a specialist right away.

Leaking of Pressure Valve

Your pressure valve’s duty is to prevent too much pressure from building up while it is processing water.

Safety systems can occasionally fail, enabling excessive pressure to build up. The pressure valve leaks, as a result, indicating the risk of an explosion. Some people may misunderstand this as a result of the water heater being installed sideways.

Shortage of Hot Water

A lack of hot water can be a warning signal. The majority of water heaters have a 30- to 50-gallon storage capacity.

When an electric source heats the water in the tank, sediments in the water begin to gather at the bottom. And gradually prevent the heater from heating enough water. 

More sediments at the bottom make the systems work harder to heat water. This might cause an explosion.

With all of these warning indications, you must now consider how to prevent this from occurring.

How Can A Water Heater Explosion Be Avoided?- 3 Helpful Tips

The thought of your water heater exploding and causing damage to your home is terrifying. And the consequences are way worse than a pressure cooker exploding due to water issues

Don’t worry, there are a few steps you may follow to avoid this from happening.

Tip 1: Checking Valve Regularly

Always Make sure your heater’s pressure release valve is working properly. If it isn’t fully functional, you need to replace it as soon as possible.

While changing the valve, use a high-quality one that will last for a long time. For your convenience, we’ve mentioned some of our top-picked high-quality valves.

Product 1
Product 2

Tip 2: Maintain Lower Temperature

Maintain a constant temperature of 120-125 degrees in your heater. Anything greater causes internal heat to build up and scorching hot water to be released.

Tip 3: Service Routinely

Once a year, get your heater serviced and cleaned out. Make sure to inspect the T& P valve and anode rod as well by the professionals. 

While any servicing is required from a plumber, always check to see if your plumber is a licensed expert or not.

Follow these suggestions to make sure you don’t experience such a disaster in near future.


Question: Is it possible for a water heater to survive 20 years?

Answer: Electric and gas water heaters have different lifespans. But on average, gas heaters last 8-12 years while electric heaters can last up to 10-15 years.

Question:Is it dangerous to set your water heater to the maximum setting?

Answer: Turning your water heater to maximum is a poor idea. It could shorten the life of your heater, raise your electricity bill, and possibly cause burning.

Question: What happens if your water heater isn’t flushed?

Answer: Flushing a water heater cleans all the sediments at the bottom. Allowing sediment to gather in your water heater can result in major problems. Such as pipe bursting, loss of water pressure, or even the tank itself breaking down.


That’s all from us today. We hope we were able to assist you in identifying the warning signs your water heater is going to explode. 

Many people die as a result of trying to repair their heaters on their own. But it’s not worth the risk. With any warning signs showing, we suggest you consult a professional. 

Good luck and stay safe!