When you turn off your water heater when going on a long vacation it is a good thing but some homeowners are still confused that can water heaters explode if they are turned off? So the answer is very rare. Maybe in some conditions there will be some risk of explosion. As the modern systems are designed in such a way that there is no chance of any risk and damages.
However due to some reasons or improper maintenance this will lead towards explosion.
So in this article from MileHi HVAC we will guide you about what are the signs, risks and how you can prevent these damages and enjoy comfort peacefully.
Do water heaters explode? Understanding the risks
Many homeowners ask this question: do water heaters explode? So this thing is very unlikely but can happen also if the safety system fails.
The chances of explosion is due to the system as water heaters heats water in a pressurized tank through heating elements and temperature. So if the temperature rises beyond the safety standards and the pressure relief valve fails then in these extreme conditions water heaters lead towards the explosion.
Although there are modern safety features in heaters now, people must follow some safety rules and ensure proper maintenance for keeping their systems safe.
Common causes of water heater explosion
Learning about the common causes behind this explosion helps you to understand that can water heaters explode if turned off?
Following are the common causes that you should know:
Excessive pressure buildup
Pressure buildup is one of the main reasons behind the water heater explosion. It occurs when the pressure and temperature valve malfunctions and can’t control the pressure inside the tank. Also when the water heater is off and there is no water supply but pressure inside the tank increases so this results in explosion.
Sediment Buildup
Due to hard water minerals build up inside the bottom of the tank and become a thick layer with time so when heating elements warm the water it works harder and uses excessive pressure. This leads towards overheating and formation of steam pockets. Due to these pockets a lot of stress and internal pressure is developed inside the tank. So this distress and overheating increases the risk of explosion if it is ignored.
Thermostat failure
As the thermostat controls the pressure and temperature. Due to a faulty thermostat the temperature inside the tank increases and goes beyond the safety limits. Due to this excessive pressure it results in excessive hot water and boils inside the tank. So without a proper functioning pressure relief system this steam pressure creates dangerous internal conditions.
Gas leaks
In gas water heaters the chances of explosion is more as leaks in gas lines or assembly burners are very dangerous. When gas accumulates and contacts with spark or ignition this results in explosion. However this issue can be controlled and in very rare cases this thing becomes dangerous.
Read More: How Long Does A Water Heater Last?
Electric water heater explosion
Homeowners are also concerned about whether can an electric water heater will explode?
Yes these type of heaters can also explode if:
- Heating elements will overheat
- Thermostat fails
- Pressure relief valve is blocked or malfunctioned
Although like gas water heaters electric models do not contain combustible gas or burning components through which the tank bursts. So can an electric water heater explode? Yes it can but can be controlled or prevented if homeowners look after it.
Signs of water heater explosion risks
Before your water heater explodes you will notice some early signs that there is some issue in your tank. Knowing about these signs you can take action earlier and prevent water heaters from exploding in the house.
Following are some warning signs:
- Loud rambling or popping sound
- Rusted color of water coming from tank
- Leaks around water tank base
- Steam from the tank
- Strange metallic odor
- Sudden loss of hot water
If you only notice frequent popping sounds this may indicate the hot water heater blowup.
Can the water heater explode if turned off?
However turning off the water heater reduces the risk of explosion after noticing the warning signs but it cannot reduce the structural weakness.
For example:
- If you closed the pressure valve the pressure will also be stopped,
- If corrosion has weakened the walls, an explosion can still occur.
- If there is leakage in gas lines there is still risk of ignition even if the heater is off.
How to prevent water heater explosions
This damaged can be prevented if you follow must safety standards like:
Properly schedule annual maintenance
Professional inspection from MileHi HVAC ensures thermostat, pressure valves and heating elements to work properly.
Check the pressure valve
Rapidly check the pressure valve to make sure that pressure is excessive and normal.
Replace old units
If you have an old system for about 15 to 20 years then repair or replace it for proper functioning.
Flush the tank
Flushing and removing sediment buildup reduces the risk of malfunctioning and explosions
Professional help from MileHi HVAC
If your system is not working properly and you are noticing some signs then in these situations dont attempt DIY actions. These types of issues are very serious and need professional inspection. Call our team at MileHi HVAC. We offer you the best services and repairs. Our professional technicians:
- Test all the valves
- Inspect pressure components
- Check electrical and gas connections
- Replaces the old system
- Gives you honest recommendations
Final Thoughts
So can the water heater explode if turned off? Yes it can if there are some serious internal issues and homeowners ignore proper maintenance and inspections of their system. Modern systems are designed in such a way that reduces these problems but also maintenance,proper inspection and taking actions early are essential.
In these cases safety is also important so always contact some professionals like MileHi HVAC for checking your system and don’t perform inspections on your own. For reliable water heater maintenance in Denver, contact Milehi HVAC today!
FAQS
Do water heaters explode often?
No this is very rare as modern systems contain safety valves. With proper maintenance there is no chance of this issue.
Can an electric water heater explode without warning?
Although this is a common issue, can an electric water heater explode if the thermostat and pressure valve fails at the same time.
What causes a hot water heater blow up scenario?
Hot water heater blowup is caused due to pressure buildup, gas leaks and corrosion inside the tank.
What happens if a water heater explodes in the house?
Water heaters exploding in houses is very dangerous as it leads towards serious injuries so you should not ignore the early warning signs.
Should I turn off my water heater if I suspect a problem?
Yes, if you notice any problem, turn off the water heater immediately and contact some professionals like MileHi HVAC.
