Type 33 (K3) Radiators

The convector radiator has been a favourite in homes for decades due to the powerful and rapid heat outputs produced. The K3 (type 33) radiator however is on another level. It is designed to heat even the largest of spaces and feature BTU’s that are hard to beat.

The Powerhouse of Heating, Affordable Type 33 Radiators With Free UK Delivery on Selected Items

Convector radiators are a little different from your standard central heating radiator, rather than heating the top to bottom of the radiator like standard radiators do, convector radiators instead circulate water through a tube around the inside of the radiator which in turn heats the exterior evenly. One of the most impressive features of convector radiators is the internal panels and fins. These convector fins and panels grant the radiator additional surface area so it heats up quicker and produces higher heat outputs.

The K3 convector radiator (type 33) features three sets of panels and fins, it is one of our most powerful convector radiators but also one of the largest. If you’re looking for a modern radiator to heat open plan living rooms or a large reception area then the Type 33 convector radiator is for you.

Before purchasing a convector radiator, be sure to use our handy and free BTU calculator. All you need to do is input your room's dimensions and a few extra details regarding your space and our calculator can work out the ideal BTU needed to heat your space efficiently and effectively.

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We have a wide range of convectors in various sizes, so if a type 33 is too strong for your needs then take a look at our full range of convector radiators. Or if you’d like a radiator to match your aesthetic and interior while still being an effective heater then we highly recommend visiting our radiator page. We have hundreds of radiator designs in a wide range of finishes.

Seeking a bargain? If you are after a budget friendly radiator then shop our radiator sale, our sale range include vertical radiators, coloured radiators, towel rails and electric radiators.

If you can’t find what you’re looking for or if you have any questions regarding our products or services please contact us today. Our award winning customer service team is on hand to help you.

Type 33 Convector Radiators Popular Questions

What Are The Benefits Of Convector Radiators?

Convector radiators are often classed as compact radiators due to their smaller size. They are ideal if your room is limited on space but you need a large BTU. The modern “compact” design includes additional internal components like fins to help the radiator heat faster and to higher outputs, which aren’t found in standard radiators. Other benefits include affordability, lightweight designs and durability.

Is A Single Panel Better Than A Double Panel Convector?

The Panels within the radiator provide additional surface area, which in turn helps the radiator reach higher heat outputs more quickly, but the more panels within the radiator the wider the radiator will be, so it depends on the heat you need and the space you have in your room. To help you make a decision take a look at our useful convector blog.

What are the Different Types Available?

We typically have three different types of convector radiators, which are all a little different.

  • Type 11 is the smallest in size, it features a single set of panels and fins. These are ideal for smaller spaces.
  • Type 21 features a two set of panels and a single set of fins. These are great for small to medium rooms.
  • Type 22 features two sets of panels and fins. These are favoured in medium to larger rooms.
  • Type 33 have three sets of panels and fins and are more designed to heat larger spaces.

What Size Do I Need?

Convector radiators come in a huge range of size options so before you decide on your dream radiator be sure to use our free BTU calculator to help you work out the BTU required for your room.