Gas boiler before 2005
or
Oil boiler before 2007
Your chosen heating system:
We've displayed the most appropriate heat output below to adequately heat your room:
Watts:
BTUs:
The heat outputs have been measured at Delta Δ50*.
*The Delta rating for your chosen heating system as recommended by Building Regulations
Main Features:
Steel offers the lowest price tag compared to other materials, but it also offers the most diversity in terms of colour and style. Steel is malleable which allows radiators to be efficient because they can be physically designed to better pass heat from the water inside to the space around them (this is a radiator's job after all, despite some thinking that its job is to “store” heat). The heat output is also good, the proof is in the pudding with this one - would steel be the most common radiator material if the heat output was rubbish? Steel is a highly durable material which is important as radiators are going to be the victims of some knocks and bangs over time and you want them to withstand that.
StyleMost UK households tend to favour convector radiators, commonly known as panel radiators. In a type 21 convector radiator, the hot water from your boiler enters the radiator and fills the front and back panels, just like other radiators. But what makes these panel rads so efficient and effective in heating your home is the ‘fins’ – strip of metal shaped like multiple fins - that are located behind the front panel. They are heated up at the same time as the main radiator panel, increasing the surface area of contact with the ambient air. These fins, once heated by the water, draw up cold air from the bottom of the radiator and subsequently heat it up. As we all remember from school, this hot air rises, before eventually cooling, dropping back to floor level and being sucked up again by the convector radiator – leaving you with a cosy warm room!
ColourWhite is a true classic. Ideal for those who like to switch up their décor from time to time, a white radiator won’t restrict your interior design spirit. This gloss powder-coated finish is perfectly even and looks gorgeous with the simple wipe of a cloth. White can be perceived as boring or safe, but in reality, it gives a clean and fresh impression in your home. Plus, with our wide range of radiator valves and accessories, you can add a touch of colour to the radiator without it becoming overbearing within the room.
Heat SourceA central heating or hot water radiator is one that is plumbed into your homes central heating system. Whether you have a Combi boiler, gravity fed (conventional) system or a system with a cylinder, you can install this radiator.
AccessoriesThis radiator has G1/2” connections either side at the bottom and so the valves required will depend on your pipework (which is why they aren’t provided with the radiator):
There are a few different types of valves available for you to choose from: Manual Valves provide easy on/off control – simply turn the valve by hand to allow the water from your central heating to pass through into the radiator or towel rail, just like a tap! If this radiator is going to be in the same room as your main boiler thermostat (usually a little box on the wall or the mantle, that you turn up and down) then we advise you to use manual valves over TRV’s because a TRV will conflict with your boiler thermostat and can cause temperature issues around the home. Thermostatic Valves (TRVs) provide multi temperature control of the radiators in your home – saving energy and money! These valves have sensor mechanisms inside that shut off the flow of hot water to the radiator when the room temperature reached the desired level! If your looking to reduce your carbon footprint while remaining cosy warm, then TRV’s are the way to go (provided they aren’t installed in the room where your main boiler thermostat is).
When discussing heat outputs, the Delta rating is the difference between the temperature of the water inside the heating system and the desired temperature of the room.
In simple terms, this value is about heat loss. Heating a room only works, if the radiator output exceeds the heat loss of the room.
We use this calculation to make it easy to choose a radiator that will have a heat output that exceeds the heat loss of the room when connected to your heating system type.
If you don't know the room heat loss, you can use our calculator to find out.
Watts are our main unit of energy/power in the UK, commonly associated with lightbulbs and Home Energy performance certificates (EPCs).
BTUs are the unit of measurement used to portray a radiators heat output and a rooms heating requirement. 1 Watt is equal to 3.41 BTUs.
We buy radiators to heat our homes, right? So, we need a way of knowing if a radiator is powerful enough to heat the room that we are shopping for - Watts and BTUs provide us with a value that makes its easier to compare radiators and ultimately choose the right one for our heating requirement.
Our fast and easy-to-use BTU calculator can help you:
SKU | P411K |
---|---|
Brand/Manufacturer | Kartell UK |
Collection | K-Rad Type 21 |
Colour | White |
Finish | Gloss |
RAL Code | 9016 |
Material | Steel |
Dry Mass (kg) | 22 kg |
Height | 400.00 mm |
Width | 1,100.00 mm |
Depth | 70.00 mm |
Projection | 100.00 mm |
Pipe Centres | 1100mm + Valves |
Wall to Pipe Centres | 65mm - 80mm |
Orientation | Horizontal |
BTUs (T30) | 1,993.00 BTUs |
BTUs (T40) | 2,894.00 BTUs |
BTUs (T50) | 3,869.00 BTUs |
Watts (T30) | 584.00 Watts |
Watts (T40) | 848.00 Watts |
Watts (T50) | 1,134.00 Watts |
Heat Source | Central Heated/Hot Water |
Connection Size/Type | 1/2" BSP |
Style | Type 21 |
Supplied With | Side Panels, Top Grille, Brackets, Masonry Fixings, Bleed Valve & Blanking Plug Included |
Radiator Valves Included | No |
Product Assurances | CE Marked, BS EN 442 Certified, 10 Years Guarantee |
GTIN | 5060168221759 |
Guarantee Length | 10 Years |
Steel offers the lowest price tag compared to other materials, but it also offers the most diversity in terms of colour and style. Steel is malleable which allows radiators to be efficient because they can be physically designed to better pass heat from the water inside to the space around them (this is a radiator's job after all, despite some thinking that its job is to “store” heat). The heat output is also good, the proof is in the pudding with this one - would steel be the most common radiator material if the heat output was rubbish? Steel is a highly durable material which is important as radiators are going to be the victims of some knocks and bangs over time and you want them to withstand that.
StyleMost UK households tend to favour convector radiators, commonly known as panel radiators. In a type 21 convector radiator, the hot water from your boiler enters the radiator and fills the front and back panels, just like other radiators. But what makes these panel rads so efficient and effective in heating your home is the ‘fins’ – strip of metal shaped like multiple fins - that are located behind the front panel. They are heated up at the same time as the main radiator panel, increasing the surface area of contact with the ambient air. These fins, once heated by the water, draw up cold air from the bottom of the radiator and subsequently heat it up. As we all remember from school, this hot air rises, before eventually cooling, dropping back to floor level and being sucked up again by the convector radiator – leaving you with a cosy warm room!
ColourWhite is a true classic. Ideal for those who like to switch up their décor from time to time, a white radiator won’t restrict your interior design spirit. This gloss powder-coated finish is perfectly even and looks gorgeous with the simple wipe of a cloth. White can be perceived as boring or safe, but in reality, it gives a clean and fresh impression in your home. Plus, with our wide range of radiator valves and accessories, you can add a touch of colour to the radiator without it becoming overbearing within the room.
Heat SourceA central heating or hot water radiator is one that is plumbed into your homes central heating system. Whether you have a Combi boiler, gravity fed (conventional) system or a system with a cylinder, you can install this radiator.
AccessoriesThis radiator has G1/2” connections either side at the bottom and so the valves required will depend on your pipework (which is why they aren’t provided with the radiator):
There are a few different types of valves available for you to choose from: Manual Valves provide easy on/off control – simply turn the valve by hand to allow the water from your central heating to pass through into the radiator or towel rail, just like a tap! If this radiator is going to be in the same room as your main boiler thermostat (usually a little box on the wall or the mantle, that you turn up and down) then we advise you to use manual valves over TRV’s because a TRV will conflict with your boiler thermostat and can cause temperature issues around the home. Thermostatic Valves (TRVs) provide multi temperature control of the radiators in your home – saving energy and money! These valves have sensor mechanisms inside that shut off the flow of hot water to the radiator when the room temperature reached the desired level! If your looking to reduce your carbon footprint while remaining cosy warm, then TRV’s are the way to go (provided they aren’t installed in the room where your main boiler thermostat is).
Radiator excellent neat strong gives out plenty of heat very happy
They look good but not installed them yet
I cant fault the service from start to finish. Cheers
Standard rad not much to add. Painting however was of poorer quality. Can see a split in paint layer internally (between 2 panels) as they do come with covers this is not an immediate issue.
Standard rad not much to add. Painting however was of poorer quality. Can see a split in paint layer internally (between 2 panels) as they do come with covers this is not an immediate issue.
Does exactly what it should. Your range being 750 tall means you can get rads that fit In smaller spaces but give out same heat. Excellent.
Great product, well made and straightforward to install, supplied by a reliable UK company. Very efficient ordering process and fair prices. A+
Great radiator. It works as it should.
I have recently purchased 3 rads from UK Raditators at 2 locations for delivery. Product and delivery first class.
Provides quick excellent heat output very pleased
Let us know which boiler you've got and we'll display the most accurate heat output for you.
Gas boiler before 2005
or
Oil boiler before 2007
Gas boiler after 2005
or
Oil boiler after 2007
Low-temperature system
e.g. heat pump