Water Heater Exhaust Pipe Very Hot- Cause & Solution

If you notice that your water heater exhaust pipe is very hot, there may be a solution. The exhaust pipe can get very hot because of the heat generated by the furnace. The first thing to check is your exhaust pipe. The pipe may be too hot to touch and is likely the source of your heat problem.

By the way, In this article, we will explore the reasons why the water heater exhaust pipe can get so hot and offer some solutions.

What are the Possible Causes of a Water Heater Exhaust Pipe Very  Become Hot?

A water heater exhaust pipe that is very hot could be caused by a few different things given below.

1. One possibility is that the stack or chimney of the boiler has become clogged and is not allowing heat to escape.
2. Another possibility is that there is an issue with the insulation around the water heater’s heating element. If this insulation is damaged, it can allow heat to escape quickly and cause the pipe to become very hot.
3. One of the other possibilities is that the insulation on the exhaust pipe has overheated and melted. This can cause the pipe to become very hot and start emitting flames.
4. A water heater exhaust pipe also can become very hot if there is a leak in the system.
5. If there is an obstruction in the system, like a piece of metal or plastic, the heat from the water can melt these objects and cause a fire.
6. If the thermostat isn’t working properly, it will keep the water tank at a higher temperature than necessary, which can cause the pipes to become very hot.
7. Finally, if there is gas leaking from the water heater (due to a defective seal or ruptured gas line), this gas can also cause the pipe to become very hot.

How to fix a Water Heater Exhaust Pipe Very Hot

If you have a water heater with an exhaust pipe that is very hot, there are several things you can do to fix the issue.

1. Try turning off the power to the unit and wait 10 minutes. If the pipe is still very hot, you may need to replace or repair it.
2. First, make sure the water heater is properly installed and functioning. If the water heater is not installed correctly or if it is not working correctly, the heat from the exhaust pipe will continue to cook the surrounding area.
3. Check to see if any debris or filth is blocking the pipe. Turn off the gas and electricity to the water heater and remove any obstructions from the exhaust pipe using a wrench or pliers. Open up both ends of the exhaust pipe using a wrench and clean out any debris or blockages.
4. If neither of these solutions works, then you can try cleaning out the pipe using a hose or using an air compressor to create suction.
5. Check the exhaust fan. If the issue is with the exhaust fan, replacing it may solve the problem.
6. Fixing a water heater exhaust pipe that is very hot can be done by installing a new pipe or repairing the old one. The first option is to replace the pipe, which is the most expensive but will fix the problem immediately. If the old pipe is still good, then the next step would be to install a heat-exchanger system that will divert heat from the exhaust pipe and into the house.
   This system is less expensive than replacing the pipe, but it will not work if there are any cracks in the system. If there are no cracks, then a thermal oxidizer can be used to fix small leaks in the piping.
7. In all cases, it’s important to have your water heater checked by a professional as soon as possible in order to prevent any potential damage or injury.

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Conclusion

In conclusion, it is important to remember that a water heater exhaust pipe can be very hot and should not be touched. If the pipe becomes too hot, it may require professional repair. If you notice any sign of overheating, do not wait to call a professional.