Stainless steel and enamel water tanks are the two major types of solar storage tanks used in solar hot water applications. However, do you know that stainless steel storage water tanks are the best choice to satisfy all your needs? Many folks may have been facing troubles when deciding which option to take. But this article will unfold why stainless steel tanks are most preferred over enamel water tanks.

Comparison Between Stainless Steel Water Tanks vs Enamel Water Tanks

stainless steel water tank

Enamel Water Tanks

Stainless steel water tanks are basically made up of two grades of stainless steel; type 304 and type 316. On the other hand, enamel water tanks are made up of mild steel and a thin coating of glass inside. Looking at the construction point of view, we can deduce comfortably that stainless steel tanks appear stronger and durable compared to enamel ones. Stainless steel tanks can withstand high temperature water, exceeding 85 degrees. But enamel tanks are highly prone to stress when subjected to elevated temperatures, leading to higher chances of damage to the enamel coating.

Stainless steel water tanks have a protective oxide barrier that prevents corrosion naturally. Unlike enamel water tanks, stainless steel tanks don’t need a “sacrificial anode” in order to reduce corrosion on its surface. The sacrificial anode in enamel tanks requires periodic replacement, usually 4 to 5 years. Therefore, stainless steel tank remains the number one because no such checkups and maintenance costs required. Stainless steel material is known for its corrosion resistance, making it suitable for various industrial applications due to its relatively longer lifespan.

Stainless steel water tanks are most preferred because they are light weight compared to enamel tanks. They are easy to transport and install at your convenient site of choice. They require less attention when being transported, unlike enamel tanks which have the delicate glass lining that can be damaged when on transit. Due to higher durability, stainless steel tanks usually have a longer warranty (generally 10 – 15 years) compared to enamel water tanks (generally 5 – 7 years).

Why Choose Stainless Steel Water Tanks over Enamel Water Tanks?

Of course, when purchasing a high quality product, price is one of the factors to consider. However, you don’t need to rely on cheap products, bearing in mind that “cheap is expensive”. Initial cost of stainless steel tanks is relatively higher than enamel water tanks. But, the cost of enamel water tanks becomes higher in the long run due to regular replacement of the sacrificial anode. Therefore, stainless steel tanks are more cost effective and sturdy compared to enamel water tanks.

Stainless steel water tanks are recyclable in nature, and can be put into other uses when you are done with the initial purpose. Also, it is easy to re-sale compared to enamel water tank. Due to wide variety of sizes in the market, you can obtain your choice at an affordable price.