Why Are Steel Radiators Popular?

Date: Oct 12, 2020 - 1:52 am

Radiators come in all shapes and sizes. Some are made from cast iron, stainless steel, or aluminium. Besides the three, a significant number of models are manufactured from steel or mild steel. Choosing between these options can significantly affect your home’s energy efficiency and your comfortability, especially when the cold weather sets in. Among the four major types of radiators based on the material used, the steel type proves to be the most popular choice. But why is this so? Is it better compared to other types of radiators? Learn more about steel radiators below.

Types of radiators – Similarities and Differences

Before choosing the radiator size or planning where to position the heating system, it pays to known which type suits your household the best. There are various pros and cons of using a specific type of radiator. Knowing these would help you understand why steel radiators have gained a lot of traction through the years and why you should consider using one too. Additionally, it will help you set your expectations in term of the system’s efficiency, durability and operational costs.   


Compared to other types of radiators, aluminium tends to produce more heat, making it a highly efficient option for large rooms. They also cool down quickly, allowing you to regulate the room’s temperature with greater ease. However, because aluminium is a superconductor, it does come with a hefty price tag. Also, because of its lightweight make, an aluminium radiator can be prone to dents and damages. The lightest bump from kids running around in the room can deform its smooth shape.

Cast Iron 

Only cast iron radiators were manufactured back in the days. They were then replaced by other materials as developments in technology progressed. In recent times, cast iron radiators have been slowly gaining traction once more. This type of radiator is widely known for its robust build. With it, you’ll never need a replacement even after 30 years. However, compared to other types of materials, cast iron tends to heat up slower. Also, they’re the most expensive type of radiator in the market.

Mild Steel 

Steel or mild steel is a widely used material in making radiators because of its durability and affordability. It can last for years, helping you get more value for your money. Manufacturers also find it incredibly easy to use in producing a variety of shapes and designs of radiators, which can suit a variety of tastes and style preferences. No other material can compete with its versatility. The only major disadvantage of mild steel is internal rusting, so it’s crucial to have your boiler serviced regularly. 

Stainless Steel 

Stainless steel radiators are quite similar to the mild steel type. Stainless steel is also a versatile metal, and it’s made extra durable because of its anti-rust, anti-stain and anti-corrosive properties. The only disadvantage to using such type of radiators is that you have to shell out a large sum of money to afford one. Also, you will most likely have a limited design and style options to choose from. 

Benefits of Steel Radiators

Steel radiators offer many benefits to homeowners. One key advantage it offers is its versatility. If customisation matters a lot to you, steel radiator is the perfect choice to use. You can find plenty of customised mild steel radiators that can match your existing interior design. It could also come extra handy for those who are looking for radiators that look modern and chic. Some models are equipped with add-on accessories so you can use them as clothing or towel rack.

Besides its smooth finish and customisation options, mild steel also proves a good investment because of its powerful heat-conducting capacity. This means you can stay warm as long as needed during the cold seasons. On top of that, they can heat up quickly, allowing you to save money and significantly reduce your home’s energy consumption.

Steel radiators are also worth the money because they’re made to last. As long as it stays rust-free, you won’t need to replace your radiator heater. To prevent rusting, here are a few tips you can use to maintain the pristine condition of your steel radiator:  

    • After flushing the system, you can add a corrosion inhibiting solution. Consult your plumber about the best product to use. 
  • Check for leakages from time to time. If you notice leaks, try locating the source and determine if you need a repair or replacement service. 

Install a stainless steel radiator in your NZ home today!

Central Heating offers a variety of radiators for New Zealand homes. If you need help in choosing the type of radiators to install, you can give us a call. Our experts can provide you with the necessary guidance so you can select the most suitable option.

We also offer retro-fitted radiators, perfect for old and traditional New Zeland houses. Get in touch with us today for more information about our offers.