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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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    Kartell KRAD Premium Radiator Type 11 Single 500 x 2000mm

    The K-Rad type 11 500x2000 radiator is a premium central heating radiator that will look good in any room. It offers high performance and maximum efficiency, with a double panel and double convector. It is also easy to install and has a high-quality...
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    Kartell KRAD Premium Radiator Type 11 Single 500 x 2200mm

    The K-Rad type 11 500x2200 radiator is a premium central heating radiator that will look good in any room. It offers high performance and maximum efficiency, with a double panel and double convector. It is also easy to install and has a high-quality...
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    Kartell KRAD Premium Radiator Type 11 Single 500 x 2400mm

    The K-Rad type 11 500x2400 radiator is a premium central heating radiator that will look good in any room. It offers high performance and maximum efficiency, with a double panel and double convector. It is also easy to install and has a high-quality...
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    Kartell KRAD Premium Radiator Type 11 Single 500 x 300mm

    The K-Rad type 11 500x300 radiator is a premium central heating radiator that will look good in any room. It offers high performance and maximum efficiency, with a double panel and double convector. It is also easy to install and has a high-quality...
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    Kartell KRAD Premium Radiator Type 11 Single 500 x 400mm

    The K-Rad type 11 500x400 radiator is a premium central heating radiator that will look good in any room. It offers high performance and maximum efficiency, with a double panel and double convector. It is also easy to install and has a high-quality...
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    Kartell KRAD Premium Radiator Type 11 Single 500 x 500mm

    The K-Rad type 11 500x500 radiator is a premium central heating radiator that will look good in any room. It offers high performance and maximum efficiency, with a double panel and double convector. It is also easy to install and has a high-quality...
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    Kartell KRAD Premium Radiator Type 11 Single 500 x 600mm

    The K-Rad type 11 500x600 radiator is a premium central heating radiator that will look good in any room. It offers high performance and maximum efficiency, with a double panel and double convector. It is also easy to install and has a high-quality...
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    Kartell KRAD Premium Radiator Type 11 Single 500 x 700mm

    The K-Rad type 11 500x700 radiator is a premium central heating radiator that will look good in any room. It offers high performance and maximum efficiency, with a double panel and double convector. It is also easy to install and has a high-quality...
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    Kartell KRAD Premium Radiator Type 11 Single 500 x 800mm

    The K-Rad type 11 500x800 radiator is a premium central heating radiator that will look good in any room. It offers high performance and maximum efficiency, with a double panel and double convector. It is also easy to install and has a high-quality...
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    Kartell KRAD Premium Radiator Type 11 Single 500 x 900mm

    The K-Rad type 11 500x900 radiator is a premium central heating radiator that will look good in any room. It offers high performance and maximum efficiency, with a double panel and double convector. It is also easy to install and has a high-quality...
  • Kartell Las Vegas Design Radiator Chrome & White 500 x 945mm Kartell Las Vegas Design Radiator Chrome & White 500 x 945mm

    Kartell Las Vegas Design Radiator Chrome & White 500 x 945mm

    The Kartell Crown Chrome Plated Heated Towel Rail 500 x 945mm is a stylish addition to any bathroom. Sleek and clean with a beautiful plated chrome finish. The towel rail has an excellent and efficient heat output. All fixtures and fittings are included...
  • Kartell Las Vegas Design Radiator Chrome & White 675 x 945mm Kartell Las Vegas Design Radiator Chrome & White 675 x 945mm

    Kartell Las Vegas Design Radiator Chrome & White 675 x 945mm

    Radiator with a one-of-a-kind Las Vegas design. This radiator is certain to add a fashionable and modern appeal to any bathroom. This beautiful Radiator is available in Silver and White.
  • Kartell Malibu Designer Towel Rail Brushed Brass 1200 x 500mm

    Kartell Malibu Designer Towel Rail Brushed Brass 1200 x 500mm

    The K-Malibu 1200x500 rail radiator is made up of top-class materials for durability; and has a substantial heat output, which is sufficient in keeping the towel and room warm. It also goes incredibly well with central heating systems and has a vertical...
  • Kartell Modern Angled Valves Anthracite 15mm (Pair)

    Kartell Modern Angled Valves Anthracite 15mm (Pair)

    These Kartell Modern 15mm Straight Radiator Valves Anthracite (Pair) are manual radiator valves with high-quality construction. In a stunning matt anthracite finish, these 15mm straight, modern radiator valves come as a pair for use with heated towel...
  • Kartell Modern Angled Valves Black 15mm (Pair)

    Kartell Modern Angled Valves Black 15mm (Pair)

    These Kartell Modern 15mm Angled Valves Black (Pair) are manual radiator valves with high-quality construction. In a stunning matt black finish, these angled 15mm, modern radiator valves come as a pair for use with heated towel rails or radiators...
  • Kartell Modern Straight Valves Anthracite 15mm (Pair)

    Kartell Modern Straight Valves Anthracite 15mm (Pair)

    These Kartell Modern 15mm Straight Radiator Valves Anthracite (Pair) are manual radiator valves with high-quality construction. In a stunning matt anthracite finish, these 15mm straight, modern radiator valves come as a pair for use with heated towel...
  • Kartell Modern Straight Valves Black 15mm (Pair)

    Kartell Modern Straight Valves Black 15mm (Pair)

    These Kartell Modern 15mm Straight Valves Black (Pair) are manual radiator valves with high-quality construction. In a stunning matt black finish, these 15mm straight, modern radiator valves come as a pair for use with heated towel rails or radiators...
  • Kartell Nostalgia 15mm Angled Thermostatic Radiator Valve Kartell Nostalgia 15mm Angled Thermostatic Radiator Valve

    Kartell Nostalgia 15mm Angled Thermostatic Radiator Valve

    These amazing Nostalgia 15mm angled TRV radiator valves offer a unique design to add character to your choice of radiator. This valve works practically well with the class radiator range. It is also finished in a nostalgia bronze colour, which will no...
  • Kartell Refined Angled Thermostatic Radiator Valve Kartell Refined Angled Thermostatic Radiator Valve

    Kartell Refined Angled Thermostatic Radiator Valve

    The Kartell Refined angled thermostatic radiator valve is a high-quality radiator valve that may assist to complete the aesthetic of a heated towel rail or radiator. The sophisticated style is completed by a sleek highly polished chrome finish. This...
  • Kartell Refined Straight Chrome Thermostatic Radiator Valve Kartell Refined Straight Chrome Thermostatic Radiator Valve

    Kartell Refined Straight Chrome Thermostatic Radiator Valve

    The straight chrome TRV valve controls the temperature from the radiator/ towel rail. The simple yet contemporary design allows the valve to fit on all styles of radiators. Additionally, the thermostatic straight valve is easy to install and even easier...

  • Kartell Retaining Stay Aluminium

    Retaining stay aluminium is designed to provide adjustable resistance. They are tough, durable and offer reliable water resistance - which is why they make the perfect solution to any problems you may have had in the past. They also have a contemporary...
  • Kartell Square Straight Valve Pair Kartell Square Straight Valve Pair

    Kartell Square Straight Valve Pair

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

    Kartell Straight Radiator Valves Chrome 15mm (Pair)

    The Kartell 15mm Straight 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 Straight Thermostatic Radiator Valve Style Design

    With a sleek chrome finish, the Style Straight TRV valve provides the perfect finishing touch to your contemporary radiator or heated towel rail. Benefitting from durable solid brass construction, the valves will ensure that your appliance has a...

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.

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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