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Central Heating Radiators

Our central heating radiators, also known as convector radiators, circulate hot water from your boiler and use internal fins to maximise surface area for quick, even warmth. Slim, dependable and ideal under windows or along longer walls, they’re a straightforward like-for-like upgrade for most homes.

Made from durable, corrosion-resistant steel with quality finishes, our convector radiators are designed for everyday reliability and simple installation. Many sizes are held in stock and most include generous manufacturer guarantees. Add TRVs for room-by-room temperature control and improved efficiency.

Match the heat output to your space by panel and fin layout: Type 11 (K1) has one panel and one row of fins for a slim profile. Type 21 (P+) features two panels with a single fin row for a moderate heat boost. Type 22 (K2) includes two panels and two fin rows for higher output.

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Type 22 H600 x W1200mm Compact Double Convector Radiator - D612K Large Image

£179.94

The stock status is In Stock

In Stock

Type 22  H400 x W2200mm Compact Double Convector Radiator - D422K Large Image

£249.94

The stock status is In Stock

In Stock

2

5 out of 5 review stars
Type 21 H600 x W1200mm Double Panel Single Convector Radiator - P612K Large Image

£154.94

The stock status is In Stock

In Stock

4

5 out of 5 review stars
Type 22 H600 x W1000mm Compact Double Convector Radiator - D610K Large Image

£164.94

The stock status is In Stock

In Stock

2

5 out of 5 review stars
Type 21 H400 x W1800mm Double Panel Single Convector Radiator - P418K Large Image

£164.94

The stock status is In Stock

In Stock

1

5 out of 5 review stars
Type 21 H600 x W1000mm Double Panel Single Convector Radiator - P610K Large Image

£134.94

The stock status is In Stock

In Stock

1

5 out of 5 review stars
Type 22 H900 x W400mm Compact Double Convector Radiator - D904K Large Image

£139.94

The stock status is In Stock

In Stock

4

5 out of 5 review stars
Type 22 H600 x W600mm Compact Double Convector Radiator - D606K Large Image

£119.94

The stock status is In Stock

In Stock

Type 21 H600 x W800mm Double Panel Single Convector Radiator - P608K Large Image

£124.94

The stock status is In Stock

In Stock

Type 21 H400 x W2000mm Double Panel Single Convector Radiator - P420K Large Image

£194.95

The stock status is In Stock

In Stock

Type 21 H600 x W1300mm Double Panel Single Convector Radiator - P613K Large Image

£164.94

The stock status is In Stock

In Stock

2

5 out of 5 review stars
Type 21 H400 x W2200mm Double Panel Single Convector Radiator - P422K Large Image

£214.95

The stock status is In Stock

In Stock

2

5 out of 5 review stars
Type 11 H600 x W1500mm Compact Single Convector Radiator - S615K Large Image

£144.94

The stock status is In Stock

In Stock

Type 11 H600 x W1300mm Compact Single Convector Radiator - S613K Large Image

£124.94

The stock status is Low Stock

Low Stock

2

5 out of 5 review stars
Type 22 H600 x W1400mm Compact Double Convector Radiator - D614K Large Image

£219.94

The stock status is In Stock

In Stock

Type 22 H600 x W1800mm Compact Double Convector Radiator - D618K Large Image

£279.94

Finance from £10.49/month

The stock status is In Stock

In Stock

2

5 out of 5 review stars
Type 22 H600 x W1600mm Compact Double Convector Radiator - D616K Large Image

£244.95

The stock status is In Stock

In Stock

1

5 out of 5 review stars
Type 21 H600 x W1800mm Double Panel Single Convector Radiator - P618K Large Image

£229.94

The stock status is In Stock

In Stock

1

5 out of 5 review stars
Type 21 H600 x W600mm Double Panel Single Convector Radiator - P606K Large Image

£99.94

The stock status is In Stock

In Stock

Type 11 H600 x W700mm Compact Single Convector Radiator - S607K Large Image

£94.94

The stock status is In Stock

In Stock

Type 22 H600 x W1100mm Compact Double Convector Radiator - D611K Large Image

£179.94

The stock status is In Stock

In Stock

2

5 out of 5 review stars
Type 22 H600 x W800mm Compact Double Convector Radiator - D608K Large Image

£134.94

The stock status is In Stock

In Stock

Type 22 H400 x W1800mm Compact Double Convector Radiator - D418K Large Image

£209.94

The stock status is In Stock

In Stock

2

5 out of 5 review stars
Type 21 H400 x W1400mm Double Panel Single Convector Radiator - P414K Large Image

£134.94

The stock status is In Stock

In Stock

1

5 out of 5 review stars
Type 11 H600 x W1100mm Compact Single Convector Radiator - S611K Large Image

£114.94

The stock status is In Stock

In Stock

Type 22 H400 x W1400mm Compact Double Convector Radiator - D414K Large Image

£159.94

The stock status is In Stock

In Stock

2

5 out of 5 review stars
Type 11 H600 x W1200mm Compact Single Convector Radiator - S612K Large Image

£124.94

The stock status is In Stock

In Stock

3

4.7 out of 5 review stars
Type 11 H500 x W2400mm Compact Single Convector Radiator - S524K Large Image

£179.95

The stock status is In Stock

In Stock

Type 21 H600 x W1600mm Compact Double Convector Radiator - P616K Large Image

£209.94

The stock status is In Stock

In Stock

1

4 out of 5 review stars
Type 22 H500 x W2000mm Compact Double Convector Radiator - D520K Large Image

£279.95

Finance from £10.49/month

The stock status is In Stock

In Stock

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Need help with Central Heating Radiators?

Recently Reviewed

Type 21 H500 x W1100mm Double Panel Single Convector Radiator - P511K Large Image

Review From Trustpilot

4th November 2025

all good looks ok feels ok on paint finish

andre mcgibbon- verified purchaser

Type 22 H500 x W2400mm Compact Double Convector Radiator - D524K Large Image

Review From Trustpilot

3rd November 2025

very good.

Norma Walton, Norden Alpine Nursery. Hirst Road.- verified purchaser

Type 21 H400 x W2200mm Double Panel Single Convector Radiator - P422K Large Image

Radiator

2nd November 2025

Radiator came a bit later than should be but well secure in packaging. Item itself is good quality and looks nice on the wall

Tomasz Brom from cheshire- verified purchaser

Type 22 H750 x W400mm Compact Double Convector Radiator - D704K Large Image

Review From Trustpilot

31st October 2025

quality product

John and thanks for your order- verified purchaser

FAQ's

Why choose Victorian Plumbing?

Finding the right convector radiator should be simple. As the UK’s largest bathroom retailer, we stock a wide range of Type 11, 21 and 22 radiators in popular sizes for quick delivery, with clear guidance to help you choose the right output and footprint for every room.

  • Extensive range, ready to go. Type 11, 21 and 22 options in the most-asked-for sizes and heights for straightforward replacements.
  • Fast delivery. Many lines are kept in our warehouse with next day delivery available on selected radiators.
  • Free standard delivery across the UK on orders over £499. Clear delivery options at checkout with no surprises.
  • 0% finance on orders over £250. Spread the cost to suit your budget at checkout.
  • Rated Excellent by customers. Thousands of verified reviews for quality and service you can trust.
  • Helpful tools and guidance. Expert buying advice to help you choose with confidence.

 

Not sure where to start? These quick answers will help you pick the right central heating radiator.

 

What are central heating radiators?

Central heating radiators (often called convector radiators) connect directly to your boiler. Hot water circulates through the radiator panels and fins, warming the surrounding air. They provide steady, reliable heat and are the most common heating choice in UK homes.

 

What's the difference between Type 11, Type 21 and Type 22 radiators?

The type refers to the number of panels and internal fins:

  • Type 11 (K1): Single panel, single row of fins. These are slimmer, and so are ideal for smaller rooms.
  • Type 21 (P+): Double panel, single row of fins. They provide higher output without much extra depth.
  • Type 22 (K2): Double panel, double row of fins. These produce more heat, making them suitable for larger or cooler rooms.

 

Are convector radiators efficient?

Yes, when matched to the room. The finned design delivers strong, even heat at typical flow temperatures. Fit thermostatic radiator valves (TRVs) to control each room and reduce waste.

Aluminium radiators are often considered particularly efficient, as they heat up and cool down quickly and can use up to 15% less energy compared to some steel models. This is because they require less water to heat, helping to reduce running costs. Double panel convector radiators also offer increased surface area for higher heat output where needed.

Electric radiators provide another efficient option for certain spaces, offering precise room-by-room control and no heat loss through pipework.

 

Will these work with low temperature systems or heat pumps?

Yes. Opt for a higher output type/size to maintain comfort at lower flow temperatures.

 

How long do central heating radiators last?

Most standard mild steel radiators last around 10 to 15 years, depending on water quality and system maintenance. Higher-grade stainless steel models may last longer due to greater corrosion resistance. If your radiators take longer to heat up or develop cold spots, replacement may improve comfort and efficiency.

 

How do I maintain performance?

Bleeding radiators removes trapped air and helps ensure even heat output. Check your system once or twice a year, especially before winter.
Read our step-by-step guide on How to Bleed a Radiator for more information.