When it comes to RV water heaters, one of the most important things to understand is how the anode rod works.
This component is responsible for protecting your heater from corrosion, and if it isn’t working properly, you could end up with a lot of damage.
In this blog post, we will answer the question: do all RV water heaters have an anode rod?
Do All Rv Water Heaters Have An Anode Rod? If you own an Suburban water heater it is made of steel with a porcelain liner and needs an anode rod to stop corrosion in the tank.
If you own the Atwood heating element, the storage tank for your water heater is made of aluminum and doesn’t require an anode rod.
The purpose of the anode rod is to corrode instead of the steel tank.
It’s a sacrificial part that needs to be replaced periodically, depending on how much water you use and what kind of water you have.
Hard water will cause the anode rod to corrode faster than soft water.
If you’re not sure whether or not your RV’s water heater has an anode rod, the best way to find out is to consult your owner’s manual.
You can also take a look at the tank itself – if there’s a round metal rod attached to it, chances are good that it’s the anode rod.
Does some water heater not have anode rod?
The majority of anode rods are sacrificed, meaning that they are made to cause corrosion (instead of your water heater’s liner).
Since they are designed to degrade over time, they wear down every couple of years and must be replaced.
Tankless water heaters lack anode rods. However, most tank-style water heaters do.
If you have a tankless water heater, there’s no need to worry about anode rods.
But if you have a tank-style water heater, it’s important to be familiar with anode rods and how they work.
Anode rods help prevent corrosion in your water heater, which can extend the life of your appliance.
If you have any questions about whether or not your water heater has an anode rod, be sure to consult your owner’s manual or reach out to a qualified professional for assistance.
Does the Dometic 6 gallon water heater have anode rod?
Atwood (Dometic) heating systems are made from light aluminum tanks, and don’t have an rod for anodization.
The anode is integrated into the heating element.
The aluminum used in Atwood (Dometic) tanks has a high resistance to corrosion, and an anode rod would only be necessary if the water were particularly corrosive.
If you have any concerns about the water in your tank, please feel free to contact our customer service department for further assistance.
Do all RV hot water heaters have an anode rod?
In general, Suburban brand water heaters need an anode rod to guard the tank from corrosion.
The rod is constructed of a material that sacrifices itself, which means that corrosion could be able to attack the rod prior to attacking the tank.
Atwood brand water heaters typically do not use anodes since their tanks are constructed of aluminum.
Some people choose to add an anode rod to their Atwood water heater even though it isn’t required, and they report feeling safer and more confident in the longevity of their water heater.
If you have an Atwood brand water heater and you live in an area with hard water, you might want to consider adding an anode rod.
You can purchase one from a hardware or RV store, or online.
Installing an anode rod is a fairly simple process that most people can do themselves.
First, locate the old anode rod and remove it. If there isn’t one, skip this step.
Next, clean out the opening with a wire brush to remove any sediment or corrosion that has built up.
Where is the anode rod located?
Find the rod for the anode. It is usually located on the top of the heater, but some might have the anode situated in the side.
Most likely, it will appear like a hexagonal plug that is screwed in the heating element.
If you’re having trouble finding it, check your model’s manual.
Unscrew the anode rod. With a wrench, loosen and remove the anode rod from the heater. You might need to use some force to get it out.
If the anode is welded in place, then you will need to cut it out with a hacksaw.
Remove any old washers or gaskets that might be on the anode threading. Inspect the anode for corrosion.
A heavily corroded anode needs to be replaced. If there is only minor corrosion, then you can clean off the debris and re-install it.
Screw in the new anode. Hand-tighten the anode into the heater. Make sure that you don’t over-tighten it, as this might damage the threading.
Re-attach any washers or gaskets that you removed earlier.
Turn on the water heater and check for leaks. If there are no leaks, then you’re done!
Now that you know where to find the anode rod and how to replace it, you can keep your RV’s water heater in good condition for years to come.
Do Dometic RV water heaters need an anode rod?
Atwood (Dometic) heating systems are made from light aluminum tanks. They don’t have the anode rod.
Another option that is becoming increasingly popular for RVers is to switch to an electric water heater that is tankless.
They eliminate the requirement to have tanks (which eliminates the extra weight) and also provide hot water on demand.
Some people argue that the anode rods are not necessary on the Atwood (Dometic) heaters because they are made from aluminum.
Aluminum does not corrode as easily as other metals.
However, I would argue that it is still a good idea to have an anode rod in your water heater, even if it is made from aluminum.
The anode rod protects the tank from corrosion by sacrifing itself.
As the anode rod corrodes, it creates a barrier between the metal of the tank and the water.
This protects the metal of the tank from corrosion.
Do all RV water heaters have an anode rod?
If you own an Suburban water heater it is a porcelain-lined steel, and needs an anode rod in order to keep the steel from corroding tank.
If you own the Atwood heating element, the tank for your water heater is made of aluminum and doesn’t require an anode rod.
However, it is important to note that even though the Atwood water heater doesn’t require an anode rod, it is still a good idea to put one in.
This is because the aluminum tank can still corrode over time and the anode rod will help to protect it.
So, whether you have an Suburban or Atwood water heater, be sure to check if your model needs an anode rod and replace it as needed.
This simple maintenance task can help extend the life of your RV water heater and keep it running properly for years to come.
Do you need an anode rod?
If you own an Suburban water heater that is porcelain lined steel, and needs an anode rod in order to stop the corrosion of the steel tank.
If you own the Atwood heating element, the storage tank for your water heater is made from aluminum and does not require an anode rod.
If your water heater is over six years old, you should check to see if the anode rod needs to be replaced.
To do this, simply unscrew the hex head plug at the top of the tank and pull out the rod. If it is less than half consumed, you can simply screw it back in.
However, if it is more than half consumed, you will need to replace it with a new one.
Anode rods are available for purchase at most hardware stores.
While replacing the anode rod isn’t a difficult task, if you’re not comfortable doing it yourself, you can always hire a professional plumber to do it for you.
Where is an anode rod located?
Find the rod for the anode. It is usually located at the top of the water heater, but some might have the anode at the sides.
Most likely, it will look like a hexagonal plug that is screwed in the heating element.
If you see a long metal rod that is inserted in the water heater, this is most likely the anode.
The anode helps to attract corrosion and protects the steel tank from rusting. It will need to be replaced every few years, depending on the hardness of your water.
You can check it by looking for any sign of corrosion or deterioration. If the anode looks like it needs to be replaced, unscrew it and take it to a hardware store to get a new one.
They are not very expensive and are easy to replace yourself.
Do Dometic RV water heaters have an anode rod?
Atwood (Dometic) Water heaters are constructed of lightweight aluminum tanks. They don’t have the anode rod.
The anode rod is not necessary because the aluminum construction protects the tank from corrosion.
Aluminum has a natural resistance to corrosion and, when used in Atwood (Dometic) water heaters, provides years of trouble-free service. Thanks for asking!
RVing can be a great way to explore the country and spend time with family or friends.
One important thing to consider when RVing is what type of water heater will best suit your needs.
When it comes to RV water heaters, anode rods are not always necessary.
In fact, many newer models come with magnesium anodes that don’t need to be replaced as often.
If you have a model that doesn’t have a replaceable anode rod, then your best bet is to just keep an eye on the water heater and make sure there is no corrosion happening.
If you do see any signs of corrosion, it might be time for a new RV water heater.