Can you still use a hot water heater if it is leaking?

Author: Dr. Pascale Lebsack  |  Last update: Wednesday, February 26, 2025

The short answer is yes, as long as you don't mind using cold water. Shutting off the input to your water heater will not affect your home's main water supply. You can still run appliances like your washing machine or dishwasher, flush your toilet, and use your shower, sink, or garden hose.

Can I use my hot water heater if it is leaking?

While a leaking water heater might cause panic at first, it is generally not considered an emergency. This is because most water heater leaks are very small and will normally not cause you to be completely out of hot water.

How long can I go with a leaking water heater?

To answer your question, once you notice a water heater leak, you have no time to wait. It is an indication that your water needs replacement. In general, you should not ignore the leak because it may cause additional damage.

Is it an emergency if my hot water heater is leaking?

You should always keep safety top of mind regarding water heaters. A water heater leak can turn into an emergency situation. In rare circumstances, the buildup of water pressure can lead to an explosion. While uncommon, you must still take a water heater leak seriously since it must be repaired or replaced.

Can you still shower if your water heater is leaking?

It's generally not safe to take a shower if your water heater is leaking. Here are a few reasons why: Electrical Hazard: If the leak is significant, water could come into contact with electrical components of the water heater, creating a risk of electrical shock.

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Should I turn off my water heater if it's leaking?

If you notice a leak anywhere on or around your water heater, you need to turn this valve off because it stops the tank from filling back up. If you can't turn it off because it's broken or you see water leaking from the valve itself, you'll need to cut off your main water supply.

Will a leaking water heater burst?

You have this problem if: Your water heater T&P valve keeps opening to release water. Also, if the T&P valve goes bad/starts leaking (which it will eventually), then pressure will continue to build in the tank, leading to a burst or explosion.

Can a leaking water heater start a fire?

Gas Leak: In gas water heaters, a gas leak can be a serious hazard. If gas accumulates in an enclosed space and encounters an ignition source, it can cause a fire or explosion. Overheating: Overheating due to a malfunctioning thermostat or sediment buildup can also increase the risk of a water heater explosion.

Does a leaking water heater need to be replaced immediately?

A leaking water heater could either need to be replaced or simply repaired. If it needs maintenance, you should have it done as soon as possible to avoid buying a new one too soon. Learn the signs that indicate it's time to replace your system rather than merely fix it.

What to do if a water heater is leaking from the bottom?

Water Leaking From The Bottom

If you notice water leaking from near the base of your water heater, it could be an issue with the drain valve. The drain valve is designed to empty the water tank when needed, such as during maintenance. Solution: Inspect the drain valve for corrosion and replace.

Can a water heater leak and then stop?

Water heater leaks sometimes seem to appear out of nowhere. In these cases, you likely notice pools of water under the unit. Too much pressure is the most likely cause. When pressure leaks occur, the water finds any tiny crack to leak through, then the leak stops when the pressure goes down.

Does a leaking water heater affect water bill?

If you have a leaking water heater, your water bill will increase. Most people don't think to check their water heater when they discover their water usage has been increasing month-over-month. With tank-type water heaters, look around the base of the water heater for signs of leaks.

What happens if you don't replace a leaking water heater?

Leaks: If your water heater is leaking, it must be replaced immediately. Leaks are usually the result of pressure buildup inside the tank. This happens when the water pressure or temperature is too high, or when the unit's relief valve is not working properly. Neglecting a leak can lead to a tank explosion.

How do I temporarily fix a leaking water heater?

Temporary fixes to repair a leaking water heater
  1. Flush the Tank. The tank must be drained to lower the pressure and stop further leaks. ...
  2. Seal the Leak. Once the tank has been drained, check the area for leaks. ...
  3. Tighten Any Loose Connections. ...
  4. Keep an eye out for new leaks.

Does homeowners cover leaking hot water heater?

If your water heater unexpectedly bursts or leaks, the water damage caused by the leak will usually be covered by homeowners insurance. However, repairs or replacement of the water heater itself will not be covered.

Is it OK to use a leaking water heater?

The simple answer is: Yes, a leaking hot water heater is dangerous. Hot water heaters in general have their own unique set of risks. Though rare, it is also possible for a water heater to explode if the pressure builds up, especially if the pressure relief valve is broken or faulty.

Is a leaking hot water heater an emergency?

So, we have definitely concluded that a leaking water heater is not an emergency on par with an exploded heater or a burst pipe, but it is certainly urgent and it would be smart to take care of it right away, before it becomes an expensive emergency. There are many ways to prevent problems like this.

How much does it cost to replace a leaking water heater?

If you're having problems with your hot water heater and it's 10 to 15 years old—the typical life span of a gas hot water heater—you may want to consider replacing it rather than repairing it. Water heater replacement costs about $1,300 on average.

Can a leaking water heater burst?

According to an IBHS study, 69% of all water heater failures result from a slow leak or a sudden burst. A residential water heater holds 20 to 80 gallons of water, which can cause significant water damage to property upon failure.

Can water leaks cause house fires?

Leaking water can also lead to electrical problems. Water and electricity don't mix, and if water comes into contact with electrical wires, it can cause a short circuit, which can start a fire.

Why would a heater leak water?

Water condensation is the most common reason for furnace leaks. Water is being forced out of the heating vents into your home, and then it falls back down to the ground, where it puddles up on your floor.

Who do I call if my water heater is leaking?

If the water heater's tank is leaking, you'll need to call a plumber to replace your water heater.

Is a leaking water heater a fire hazard?

Leaks from water heaters can lead to gas leaks and fires. Problems like a broken relief valve, corrosion, or sediment can cause these dangers. Not fixing these issues can make things worse, putting your home and family at risk.

Where is a water heater most likely to leak?

The drain valve, located at the bottom of the tank, is the likely source of water heater leaks. Check the drain valve for escaping water.

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