Why Are Radiators Made Of Metal?

Introduction

The wonderful way radiators generate and disperse warmth has been understood for many hundreds of years. A radiator expert realised that by encasing hot water or steam in a metal vessel, you can ‘radiate’ heat outwards and distribute it around confined spaces. What a great day that was!

Incidentally, did you know that Romans have been credited with inventing the principle of central heating? Though they favoured underfloor distribution of warmth in their bathhouses and homes. Further along in history, piped hot water was increasingly used and the invention of steam power in the 18th century got a few engineers thinking!

Officially though, the first radiator was circular and known as the Bundy Loop. It was the invention of Nelson H. Bundy in 1872 and made from cast iron.

The principle of using metal to conduct heat was firmly entrenched.

Manufacturers eventually began to play around with different metals – principally iron and aluminium, and alloys (combinations of metals) such as steel.

It could not be more straightforward – circulating hot water through modern metal radiators with good surface values, optimises the conductive properties of their materials. They give off reliable and constant warmth.

That’s not to say that all metals work the same for radiators of course!

Which is why the topic of ‘why radiators are made from metal’ is more complex than it sounds. Exploring the subject provides insights into the different types available and how to decide which one is best for you. Do you choose a modern material or traditional cast iron radiators for example?

Cast Iron Radiators

For many people buying radiators - particularly ‘showpiece’ products that look fabulous in bathrooms or halls - nothing beats the look of a cast iron radiator. Which is why it is still used in vintage designs for radiators.

If you really want to make a statement, take a look at the Paladin Shaftsbury Horizontal Cast Iron Traditional Radiator for example.

However, there’s a good reason why other metals are now freely used. Iron takes longer than its alternatives to heat up. It also takes longer to cool down. This means they give off lower heat values but can also radiate heat even after the system controls are off.

If energy efficiency and agile controls are your goals, cast iron may not be the material you use for radiators. It is also a heavy option for radiators too. That may be attractive if you like sturdy and robust but may put you off if you prefer the benefits of installing lighter radiators.

Aluminium Radiators

Aluminium is an increasingly popular choice, and when you see its values and advantages it illustrates exactly why metal is used for radiators.

Aluminium is lightweight which is great if you want radiators that are easy and quick to install. Or, for larger wall mounted radiators and rails to transmit heat without worrying about the weight of the structure.

Are they better than steel? Aluminium offers better heat transfer as it is more conductive. You can turn the dial down and enjoy fuel efficiency in your home. So, aluminium is a good choice for eco-friendly radiators.

They are also highly corrosion resistant, which links to the above as you won’t need to renew your radiators as often, which is better for the environment and your pocket!

If you think about it, the clues are there. Steel radiators are in constant contact with water – and what does moisture do to steel? The potential for corrosion interferes with efficiency and shortens its life span. Whereas aluminium doesn’t rust or corrode when in contact with moisture. Making it the perfect choice for reliable and long term functioning.

Looks matter with radiators. Modern designers and manufacturers of heating equipment shape aluminium into creative designs, to suit all lifestyles, preferences and budgets. Including innovative radiator designs for contemporary homes.

The Carisa Magico Bath Aluminium Towel Radiator is a great example of this cutting-edge creativity.

This is another area where aluminium ‘cleans up’ on plus points. It holds its fabulous appearance for a long time, even under constant use. If aluminium radiators get dirty – due to kids' sticky handprints or muddy dogs rubbing along them – they can be wiped clean with a damp cloth. This even applies to radiators with a shiny finish on them. It’s so simple!

Stainless Steel Radiators

This widely used and respected metal is also great for radiator production.

Stainless steel radiators hold their heat brilliantly. The resilience of this metal alloy makes it long-lasting too, including being corrosion resistant.

Maintenance of stainless steel radiators is also really straight forward and their aesthetic appeal can be a winning point. Stainless steel can be crafted into some highly creative designs for home living and workplaces.

Check out the flowing lines of the stunning Reina Nerox Vertical Designer Radiator.

If this is your ideal metal for radiators, keep in mind that this category does tend to be slightly higher in price than alternatives, particularly mild steel (chrome).

What About Chrome Radiator Benefits?

This is the commonly used name for ‘mild steel’. Chrome radiators are enduringly popular in British homes and workplaces, and it is easy to see why. They can look stunning, especially as innovative designers produce eye-catching chrome rail and panel structures to fit into any décor.

The incredible shine they can omit is truly breathtaking, so much so they can be used in a mirror effect. For instance, with the Vogue Vision Mirrored Vertical Designer Radiator.

Chrome radiators are still a source of toasty warm rooms and are often more competitively priced than stainless steel versions. However, something to keep in mind is that Chrome radiators do provide a lower heat output than alternatives. The science behind that hinges partially on the fact they are so shiny (inside and out)!

How To Choose Radiators

Clearly – by virtue of the fact we stock radiators made from all the various metals – a lot of this is down to personal choice.

Did you know you can match the colour of radiators to interior design themes? We offer a service to provide custom painted radiators.

Our range comes in a fabulous array of shapes, styles and sizes, and our products are manufactured using a variety of quality materials. The common factor is they are all chosen for functionality and aesthetic brilliance.

So, as metal is ideal for radiators, you just need to choose which one works best for your property!