Column Radiators

Column radiators come in different materials, shapes and setups, so there are a few things worth knowing before you choose. These FAQs explain how they heat, how they differ from cast iron, where vertical and horizontal designs work best, and what to check when fitting or replacing one.

 

Are column radiators the same as cast iron radiators?

No. Column describes the radiator's shape and construction, while cast iron describes the material it's made from. Many modern column radiators are made from steel but use a traditional, cast iron-style design. Genuine cast iron radiators are a separate option and tend to be heavier, with different heat up and cool down characteristics.

 

Are column radiators efficient?

Column radiators can heat a room effectively when their BTU output matches what the space needs. The extra surface created by the columns can help them give out plenty of heat, but having more columns doesn't automatically make a radiator cheaper to run.

How much energy you use depends on how powerful the radiator is, how quickly the room loses heat and how you control the heating.

 

How many columns should my radiator have?

The number of columns you need depends on the heat output required for your room, as well as the space available for your radiator.

• 2 column radiators offer a slimmer profile and can be a good choice where space is limited
• 3 column radiators provide a higher heat output
• 4 column radiators can offer even more heat from a similar wall area

Keep in mind that radiators with more columns are generally deeper, so double check the dimensions and your measurements before choosing. Start by calculating the BTU output your room needs, then choose a radiator with enough heat output to suit your space.

Use our BTU guide to help with your calculations.

 

What size column radiator do I need?

Start by calculating the BTU output your room needs, taking factors such as room size, insulation, windows and external walls into account. You can then choose a column radiator that provides sufficient heat output and check its height, width and depth to make sure it fits comfortably in your room.

 

Should I choose a vertical or horizontal column radiator?

Choose around the wall space you have rather than assuming one orientation will heat better. Horizontal column radiators work well across wider stretches of wall or beneath windows, while vertical models make better use of narrower spaces.

 

Can I replace a panel radiator with a column radiator?

Usually, yes, but don't choose the replacement by dimensions alone. Make sure the column radiator gives the room enough heat and check its depth, weight and connection positions against your existing setup. The pipework or wall fixings may need changing if the new radiator is a different size or shape, so factor that into the installation before you buy.