Aluminum anode rods may not have the high-level corrosive properties to keep up with the needs of your water heater, leading to faster corrosion and deterioration of the tank. Magnesium anode rods protect against corrosion better, extending the life of your hot water tank.
Just so, are aluminum anodes better than zinc?
Driving voltage: Aluminium anodes has a relatively high driving voltage. This means that it provides better distribution of the current, compared with zinc. Environment: Aluminium anodes carry a better environmental footprint than zinc anodes.
Correspondingly, does an aluminum hot water tank need an anode rod?
If you have a Suburban water heater, the tank is porcelain-lined steel and requires an anode rod to prevent corrosion of the steel tank. If you have an Atwood water heater, your water heater tank is aluminum and does not require one.
How do I know if my anode is magnesium or aluminum?
A magnesium rod will generally last less than an aluminum rod. One issue with aluminium rods is that the corrosive material that is formed on the anode tends to harden and sink to the bottom of the water tank. This can potentially find its way into your taps and cause issues down the line.
How do I know what size anode rod to buy?
As a rule you want the anode to be “tip to toe” running the full height or length of the tank. If you cant see your brand on the chart then just measure the length of the tank and pick the closest length of anode. If the anode is too long they can be simply cut to length with a hack saw.
How long does an aluminum anode rod last?
How long will water heater last without anode rod?
Which anode rod is better?
Magnesium anode rods are expected to work better in a home with soft water. Aluminum anodes are appropriate for homes with hard water and a high PH. Zinc anodes work best if a home is starting to smell like rotten eggs and is best for replacing water heaters that already dissolved.
Why does my hot water heater smell like sewer?
Bacteria growing in the water heater
Bacteria growing in the water heater can also produce a rotten eggs or sewage-like smell. Frequently, this occurs if the hot water is unused, if the water heater is turned off for a long period of time, or if the thermostat on the heater is set too low.
Will aluminum anode rod eliminate rotten egg smell?
The Complete Fix, in Most Cases …
Very often, replacing the standard magnesium or aluminum anode rod with an aluminum/zinc alloy anode will solve the problem. The zinc is a key ingredient, since pure aluminum anodes will also reek to high heaven.