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Radiators & Heaters

Radiators and heaters available online and in branch. Double panel and single panel radiators and different sizes and styles available. Sizes include 600 x 400, 600 x 600, 600 x 1600 and many more.  

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  • EPH Programmable Thermostat & Receiver

    EPH Programmable Thermostat & Receiver

    Room thermostat and receiver suitable for controlling 1 heating zone.

  • Kartell 10mm Angled Lockshield Galaxy Design with DOC

    These 10mm Galaxy design Lockshield radiator valve offers an attractive finish to your chosen radiator. The twin pack comes with the lockshields and drain off valve, provided in a 10mm size. It also has a very beautiful chrome finish, where you will no...

  • Kartell 10mm Angled Lockshield Radiator Valve White Galaxy Design

    These 10mm Galaxy Angled design Lockshield radiator valves offer an attractive finish to your chosen radiator. This twin pack comes with the lockshields and drain off valve, provided in a 10mm size.

  • Kartell 10mm Angled Lockshield Style Design with DOC

    These 10mm Style design Lockshield radiator valve offers an attractive finish to your chosen radiator. The twin pack comes with the lockshields and drain off valve, provided in a 10mm size. It also has a very beautiful chrome finish, where you will no...

  • Kartell 10mm Angled Lockshield White Style Design

    This K-Rad 10mm Angled LS/WH in Style is manufactured from the best quality brass material, available as strange or angled. They are supplied in a pair and come complete with Wheelhead and Lockshield tops. It also has a chrome and white finish, which...
  • Kartell 15mm Angled Radiator Valve Anthracite Pair

    Kartell 15mm Angled Radiator Valve Anthracite Pair

    This pair of K-Rad angled radiator valves are a high-quality radiator piece, which are compatible with both floor and wall mounted pipes. They also have a thermostatic control for easy adjustment of heat output and a standard 15mm connection. The...
  • Kartell 15mm Angled Radiator Valve Black Pair

    Kartell 15mm Angled Radiator Valve Black Pair

    This pair of K-Rad Angled radiator valves are a high-quality radiator part which delivers an impressive component and combines both a dependable build with a fine modern look. They also have a thermostatic control for easy adjustment of heat output and a...
  • Kartell 15mm Angled Radiator Valve Pair Kartell 15mm Angled Radiator Valve Pair

    Kartell 15mm Angled Radiator Valve Pair

    The Kartell 15mm Angled Radiator Valve (Pair). These Modern radiator valves are designed and manufactured from quality chrome plated brass. Valves are straight and come as a pair.
  • Kartell 15mm Straight Radiator Valve Anthracite Pair

    Kartell 15mm Straight Radiator Valve Anthracite Pair

    This pair of K-Rad straight radiator valves are a high-quality radiator piece, which are compatible with both floor and wall mounted pipes. They also have a thermostatic control for easy adjustment of heat output and a standard 15mm connection. The...
  • Kartell 15mm Straight Radiator Valve Black Pair Kartell 15mm Straight Radiator Valve Black Pair

    Kartell 15mm Straight Radiator Valve Black Pair

    This pair of K-Rad Straight radiator valves are a high-quality radiator piece which delivers an impressive component and combines both a dependable build with a fine modern look. They also have a thermostatic control for easy adjustment of heat output...

  • Kartell 2 Column Laser Klassic Anthracite Radiator 1800 x 335mm

    The K-Rad 1800mm Laser Klassic radiator in 2 column is perfect for the modern home. It can fit most spaces and can look beautiful in your house. It is manufactured from strong and durable materials and provides the best heat outputs which make your home...
  • Kartell 2 Column Laser Klassic Anthracite Radiator 600 x 650mm

    Kartell 2 Column Laser Klassic Anthracite Radiator 600 x 650mm

    £358.35 - £433.35 each (Ex VAT)
    £430.02 - £520.02 each (Inc VAT)
    The K-Rad 600mm Laser Klassic radiator in 2 column is perfect for the modern home. It can fit most spaces and can look beautiful in your house. It is manufactured from strong and durable materials and provides the best heat outputs which make your home...
    £358.35 - £433.35 each (Ex VAT)
    £430.02 - £520.02 each (Inc VAT)
  • Kartell 2 Column Laser Klassic White Radiator 1500 x 322mm

    Kartell 2 Column Laser Klassic White Radiator 1500 x 322mm

    The K-Rad 1500x322mm 7 sec Laser Klassic radiator in 2 col is perfect for the modern home. It can fit most spaces and can look beautiful in your house. It is manufactured from strong and durable materials and provides the best heat outputs which make...

  • Kartell 2 Column Laser Klassic White Radiator 1800 x 335mm

    £257.15 - £392.87 each (Ex VAT)
    £308.58 - £471.44 each (Inc VAT)
    The K-Rad 1800x335mm 7 sec Laser Klassic radiator in 2 col is perfect for the modern home. It can fit most spaces and can look beautiful in your house. It is manufactured from strong and durable materials and provides the best heat outputs which make...
    £257.15 - £392.87 each (Ex VAT)
    £308.58 - £471.44 each (Inc VAT)
  • Kartell 2 Column Laser Klassic White Radiator 600 x 644mm Kartell 2 Column Laser Klassic White Radiator 600 x 644mm

    Kartell 2 Column Laser Klassic White Radiator 600 x 644mm

    £219.06 - £388.11 each (Ex VAT)
    £262.87 - £465.73 each (Inc VAT)
    The K-Rad 600mm Laser Klassic radiator in 2 columns is either available in 1010mm, 1190mm, 650mm or 830mm and is perfect for the modern home. It can fit most spaces and can look beautiful in your house. It is manufactured from strong and durable...
    £219.06 - £388.11 each (Ex VAT)
    £262.87 - £465.73 each (Inc VAT)
  • Kartell 2 Column Radiator Feet Pair Kartell 2 Column Radiator Feet Pair

    Kartell 2 Column Radiator Feet Pair

    The Kartell 2 column Radiator Feet are fully designed with the Kartell Laser Klassic 6 Column Tubular Steel radiator range. Radiator feet is ideal for use to provide support if the wall isn't strong enough to support the radiator alone.

  • Kartell 3 Column Laser Klassic Anthracite Radiator 600 x 650mm

    £308.35 - £630.37 each (Ex VAT)
    £370.02 - £756.44 each (Inc VAT)
    The K-Rad 600x1010mm 22 sec Laser Klassic radiato in 3 col is perfect for the modern home. It can fit most spaces and can look beautiful in your house. It is manufactured from strong and durable materials and provides the best heat outputs which make...
    £308.35 - £630.37 each (Ex VAT)
    £370.02 - £756.44 each (Inc VAT)

  • Kartell 3 Column Laser Klassic White Radiator 1800 x 335mm

    The K-Rad 1800x335mm 7 sec Laser Klassic radiator in 3 col is perfect for the modern home. It can fit most spaces and can look beautiful in your house. It is manufactured from strong and durable materials and provides the best heat outputs which make...
  • Kartell 3 Column Laser Klassic White Radiator 600 x 650mm Kartell 3 Column Laser Klassic White Radiator 600 x 650mm

    Kartell 3 Column Laser Klassic White Radiator 600 x 650mm

    £237.50 - £424.42 each (Ex VAT)
    £285.00 - £509.30 each (Inc VAT)
    The K-Rad 600mm is available 26 sec Laser Klassic radiator in 3 col is perfect for the modern home. It can fit most spaces and can look beautiful in your house. It is manufactured from strong and durable materials and provides the best heat outputs which...
    £237.50 - £424.42 each (Ex VAT)
    £285.00 - £509.30 each (Inc VAT)
  • Kartell 3 Column Radiator Feet Pair Kartell 3 Column Radiator Feet Pair

    Kartell 3 Column Radiator Feet Pair

    The Kartell 3 column Radiator Feet are fully designed with the Kartell Laser Klassic 6 Column Tubular Steel radiator range. Radiator feet is ideal for use to provide support if the wall isn't strong enough to support the radiator alone.
  • Kartell 4 Column Laser Klassic White Radiator 400 x 650mm Kartell 4 Column Laser Klassic White Radiator 400 x 650mm

    Kartell 4 Column Laser Klassic White Radiator 400 x 650mm

    £383.35 - £607.16 each (Ex VAT)
    £460.02 - £728.59 each (Inc VAT)
    The K-Rad Laser Klassic radiator in 4 or 6 column is perfect for the modern home. It can fit most spaces and can look beautiful in your house. It is manufactured from strong and durable materials and provides the best heat outputs which make your home...
    £383.35 - £607.16 each (Ex VAT)
    £460.02 - £728.59 each (Inc VAT)
  • Kartell 4 Column Legacy Radiator 660 x 600mm

    Kartell 4 Column Legacy Radiator 660 x 600mm

    The K-Rad 4/65 column radiator with 17 sections is a stunning radiator with a vintage appearance, which is perfect for traditional homes. The luxurious style of the radiator is also undeniable, and comes in a range of different sizes, so it can be fitted...

  • Kartell 4 Column Legacy Radiator 760 x 600mm

    £547.04 - £1,138.72 each (Ex VAT)
    £656.45 - £1,366.46 each (Inc VAT)
    The K-Rad 4/75 column radiator with 17 sections is a stunning radiator with a vintage appearance, which is perfect for traditional homes. The luxurious style of the radiator is also undeniable, and comes in a range of different sizes, so it can be fitted...
    £547.04 - £1,138.72 each (Ex VAT)
    £656.45 - £1,366.46 each (Inc VAT)
  • Kartell 4 Column Radiator Feet Pair Kartell 4 Column Radiator Feet Pair

    Kartell 4 Column Radiator Feet Pair

    The Kartell 4 column Radiator Feet are fully designed with the Kartell Laser Klassic 6 Column Tubular Steel radiator range. Radiator feet is ideal for use to provide support if the wall isn't strong enough to support the radiator alone.

Radiators & Heaters

Radiators have been around for a long time as hot water is a very common form of heating for homes. A radiator is essentially a metal structure that is made up of hollow areas that fill up with hot water, this in turn heats up the metal which warms up the room. Eventually the water cools, and the cold water moves down to the bottom of the radiator, before leaving via a pipe. The hot water stays at the top, which is why radiators are typically hotter at the top than at the bottom. Hot water is conveyed to the radiators using one of three methods: pressure pump, gravity, and convection. They are a necessity for 21st century modern life, and at Howarth we have a wide range of radiators and electric heaters to help you spread the warmth.

Types of Radiators

Before you decide which radiator would be the best fit for you, there are a few things you need to consider before making any decisions, for example: the type of windows you have (single our double glazed), whether your house is sheltered or exposed, and whether the size of the radiators could fit inside your home.

Steel is the most popular material of radiator, as it is an excellent heat conductor. They also heat up quickly, and they retain heat for a long time even after the central heating has switched off. Column radiators are traditionally styled radiators and are made from hollow tubes of mild steel or cast iron, and have been designed to maximise the surface area, which allows them to heat a room up rapidly.

Panel radiators are one of the original forms of radiator and can distribute both convection and radiant heat. They are fast, silent, and responsive.

Compact radiators are like panel radiators, except that they have a more modern look to them and can blend into any room in the house to provide guaranteed heating.

Towel rails have become widely popular over the last few years due to its trendy, modern appearance in most home and hotel bathrooms. Although towel radiators may not give off an extreme amount of heat in comparison to our compact radiators, they are great for keeping your towels fresh and dry and are nice to look at.

For further expert advice and guidance on which radiator would be best for your home, please contact your friendly local Howarth branch.

How to guides

How to bleed a radiator

A guide including step-by-step instructions on how to successfully bleed your radiator.

How to clean a radiator

A step-by-step guide on how to succesfully clean radiators.

How to remove a radiator

A helpful guide which includes step-by-step instructions on how to successfully remove your radiator.

Towel Rails: An Ultimate Guide

An article featuring a wide range of information on towel rails, from colours to accessories and sizes.

A Buying Guide to Radiators

Read through and discover the ultimate radiator buying guide with tips on types, sizes, finishes, and accessories like valves and covers to help you choose the perfect radiator for your home.

Frequently Asked Questions

Which are the best radiators?
At Howarth, we have a wide range of radiators on offer. Efficiency is important, and with new radiators, you'll want to look at the heat output to make sure you select one that's right for your room. It also depends on the size of your room, and what kind of design and style you’d like. Modern vertical radiators are a great choice as they are durable, have a great heat output, and are contemporary and elegant in design. However, they do take a while to heat up, and are quite big compared to other radiators. Compact radiators are also a good choice, as they are smaller and better for traditional spaces. They’re also lightweight and inexpensive but do contain a plainer design. Overall, there are a wide range of good radiators, but choosing which one is best for you ultimately depends on a lot of factors, such as heat requirements of the space, room sizes, window dimensions and even the materials used in the walls.
Do radiators use gas?
Gas central heating is one of the most widely used heating systems in the UK, with most homes using it. Radiators for gas central heating use a combination of convected and radiated heat to distribute heat. Hot water from the pipes warms the surface of a gas central heating radiator, which then radiates heat into the room. Cold air passes through the radiator channels and is heated by the hot pipes, circulating warm air across the room, and heating it via convection. This creates a comfortable and efficient thermal balance. However, because water takes longer to travel from the boiler to the radiators, your rooms may take longer to heat up.
How to turn off a radiator?
If your radiator has a thermostatic valve, locate it on the left side of the radiator to turn it off. Then clockwise turn the valve until the dial reads 0. Next, on the right hand side of the radiator, locate the second valve called the RAD valve, and twist it clockwise until it no longer twists. The radiator will be totally switched off and cooled once both valves are closed.
How to turn on a radiator?
To turn the radiator back on, turn the thermostatic valve anti-clockwise until you get to the desired number you’d like, such as 3 or 4. Then, on the right hand side of the radiator, locate the second valve and twist it anti-clockwise until it stops twisting. When the valves are fully on, turn it back a quarter, as this stops the valves from ceasing up from corrosion.

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