What Causes a Hot Water Tank to Explode

In terms of having to undertake maintenance on ones water heater, it is a pretty low maintenance home appliance. Even so, one crucial element of it must be inspected regularly. Hot Water Heater Repair Rio Rancho wishes to pass along this safety information regarding ones water heater today.

Excessive temperature if merged with tank corrosion inside of the storage tank can lead to an explosion. Any time the water temperature is below 212 degrees Fahrenheit, one will be secure from an explosion, though there is a danger of scalding at that temperature. However, if the water temperature is above 212 degrees, water transforms into steam, which will then expand to 1,700 times the space it occupies as water. This is when an explosion can also occur.

Cautionary Indications of a Water Heater Explosion
The leading sign is if one goes to get hot water from a faucet and only steam comes out. Without delay shut off power if one owns an electric water heater. If one has a gas hot water heater, shut off the gas valve going to the water heater. Next, get in touch with us to come check out the condition.

Minimizing Potential Water Heater Dangers
The most crucial upkeep endeavor with a water heater is to check the pressure relief valve, referred to as the T&P valve, on a usual basis. This valve helps regulate the pressure buildup on the interior of the water storage tank to prevent a threatening increase in temperature and overpressure.

Take note, the water discharge with a T&P valve may be rather hot. If you do not feel safe testing the valve contact us. Also, doing any sort of fixes to the valve really should be completed by a professional plumbing repair provider.

How to Test the T&P Valve

Clear the spot around the overflow pipe and floor drain.
Lift up the test handle for around 5 seconds or until the water runs clear.
Release the handle.
If the T&P valve keeps on running with water, lift the handle up and down quickly to have it reseat itself. One may have to do this a handful of times. IF it has not been tested for a while, it might be difficult to raise it at first. Avoid using too much force, however could need to use just a little.
If the T&P valve remains leaking, it should be replaced.
Other points to look for are deterioration on the stem of the valve. If there is any water seeping out of the valve stem or from the drain valve.

Looking for far more ideas? Check out our additional articles right here:

Water Heater Maintenance Infographic

Rio Rancho Water Heater Maintenance

Related T&P Valve Testing Videos

Mythbusters did a test of the potential dangers of hot water heater explosions here:

Water Heater T&P Valve Repair Rio Rancho

What the Experts Say

  • The discharge from a T&P valve can be very hot. It is very important that all T&P valves be installed properly with a discharge line piped downward to an adequate drain to avoid property damage and to minimize possible human contact.
    Read more…

Watts Water Technologies

If the temperature in your heater remains high after you turn down the thermostat, the thermostat may be faulty. Consult a professional for repair. Read more…

Home Guides

Pressure relief valves sometime develop a drip when opened for the first time in years. Try opening and closing it a few times to see if it will seat itself. If you have a large leak or the drip doesn’t stop on its own in a day or two, the valve will need to be replaced.  Read more…

Today's Homeowner

Check out some of our other water heater tips in our blog