Aluminum Vs Magnesium Anode Rod

A magnesium rod will generally last less than an aluminum rod.

Aluminum vs magnesium anode rod.

But first let s compare the two most common types of anode rods you ll find in water heaters today. An aluminum water heater anode rod is placed into a water heater to prevent corrosion. Let s put on our chemistry hats and explore this a bit further. In the same way that ships use sacrificial rods to protect the metal of the hull an anode rod attracts the corrosion and keep the rust and corroding elements away from the water tank itself.

Magnesium rods are more expensive. Anode rod magnesium or aluminum. Aluminum and magnesium rods. The aluminum rods are the slowest performing anode rods built from aluminum.

Aluminum vs magnesium our review. Unlike aluminum anode rods dissolved magnesium offers health benefits. In addition to high tds total disolved solids low ph acidic water and high ph alkaline water or oxygen and dissolved co2 or high levels of salts or sulfates or corrosion related bacteria and electrochemical corrosion will eat away more aggressivley on the anode rod. Both magnesium and aluminum are less noble metals meaning they corrode quickly in water.

Water heater anode rods. The chemical reaction for rusting begins by oxidation which is when iron loses two of its electrons to the oxygen found in the tank. This can potentially find its way into your taps and cause issues down the. Aluminum anode rods are cheaper than magnesium anode rods.

Reaction with water elements can sometimes lead to production of hydrogen sulfide which comes out as a rotten egg smell in the water. Since the working mechanism is slow this is the reason why it produces low voltage during electrolysis. So you suspect your water heater s current anode rod needs replacing so you re figuring out which type you ought to purchase as a replacement. Aluminum anodes tend to be cheaper than magnesium anode rods.