What is the difference between a Type 11 and Type 21 radiator?

Type 21 Radiator

Similar to a type 11 radiator, the type 21 has a single set of fins, but this time they're encased between two panels – one at the front and one at the back. This gives a higher heat output than the type 21, but increases the depth of the radiator.

What is the difference between Type 11 Type 21 and Type 22 radiators?

Type 22 radiators are thicker than Type 21. The reason for this is that they have two sets of convector fins, thus taking up an inch or so more in diameter. This makes them better suited to larger spaces that need more power to be heated.

What does Type 21 radiator mean?

Type 21 radiators are also known as P+ radiators or double panel plus radiators. They are a conventional type of radiator with 2 panels (front and back) and 1 set of convector fins in the middle usually zigzag shaped which distribute air evenly.

What are Type 11 and Type 22 radiators?

Type 11 is a single panel radiator with a single layer of fins. It's looks very similar to Type 21 convector radiators but has no back panel which is usually hidden from sight. Type 33 convector radiators combine a Type 22 radiator and a Type 11 radiator to create the ultimate in heat output.

Are Type 11 radiators any good?

Single panel convector radiators (also known as Type 11) are ideal when you need a highly efficient and effective radiator to heat your room, but you don't want one that takes up too much space.

Kudox Premium Type 21 Double-Panel Plus Single Convector Radiator | Screwfix

Which radiators give out the best heat?

Central heating radiators

These radiators have the highest heat output and greatest heating efficiency of all plumbed radiator styles, making them a popular choice in many homes. They use corrugated panels (convectors) to radiate heat into the room.

What is a Type 11 radiator?

Single panel radiators are great for use in hallways or passageways where space is at a bit of a premier. They generate a great heat output but without the added projection that you get into the room like a double panel radiator.

Are Type 22 radiators more efficient?

A double panel convector radiator (also known as a Type 22) is an even more efficient and effective way of heating a room because it features two panels and two sets of convector fins, so the surface area of the radiator is vastly increased.

Do different radiators give more heat?

The longer the panel, the larger the heat emitting surface area, so bigger radiators will emit more heat, but also remember that a double panel radiator will emit more heat than a single panel radiator of the same length.

How do I choose radiator size?

Multiply the cubic volume to account for room size.

For lounges, living rooms, and dining rooms, multiply the cubic volume by five. For bedrooms, multiply by four. For common areas and kitchens, multiply by three. This gives you the needed radiator output in BTUs.

How do I know what type of radiator I have?

Another clue is to look at the radiators. If each radiator has only one pipe connected to it, you have a one-pipe steam system, the most common type of steam heat. If your radiators have two pipes, you might have two-pipe steam or a hot-water system. To determine which one, check the boiler.

Will new radiators make a difference?

Improvements in Radiators

It's easy to assume that radiators made decades ago are less efficient, but studies have shown that a new radiator can be as much as twice as efficient as even a twenty year old equivalent.

What are the best quality radiators UK?

Are oversized radiators better?

Getting the balance right with radiator size is critical. If your radiator's too big, you'll be wasting energy every time it's on - and you may be taking up unnecessary wall space. Then again, if your radiator's too small, you'll never get the heat output you need to get the temperature you want in the space.

What should I look for when buying a new radiator?

What's the difference between 2 column and 3 column radiators?

A single radiator, unsurprisingly, features only one long panel, whilst double radiators have two, and triple radiators incorporate three panels.

Can I replace a Type 21 radiator with a Type 22?

There are no rules that say a type 22 radiator can't be used anywhere. However, if a type 21 radiator (in any room) gives the correct output and to a length and height suitable looking for the wall space, then you use it. It will not come as far out from wall as a type 22.

Are double radiators better than singles?

For standard sized and large rooms, double panel radiators are by far the most efficient. Single panel radiators emit less heat because they have less surface area for the heat to come from.

What's the difference between double Panel and double Panel Plus radiators?

The double panel plus radiator takes the power of a double panel radiator that one step further. Instead of just one set of convector fins, the double panel plus has two. That makes twice the panels and convector fins inside them.

What are the different types of car radiators?

Notwithstanding the materials used, radiators are basically of two types: cross-flow radiators and down-flow radiators, depending on where the tank is located.

Do cast iron radiators give out more heat?

A cast iron radiator will give out far more heat than a modern steel equivalent. It was for this reason and the fact that steel radiators look a bit out of place in period homes, that Paladin resurrected the cast iron radiator, more than 15 years ago.

What is a good BTU for radiators?

BTU guides

You will require 1 x radiator or heated towel radiator with an output of at least 1896 BTU. Something like the White heated towel rail 1200 x 600 would be ideal. You will require 2 x radiators with a BTU output of at least 3733 BTU.

Do double radiators cost more to run?

Heat performance – double radiators are able to heat a larger space and faster. Energy costs – as double radiators are larger, they do cost slightly more in heating bills.

What colour radiator is best?

Coloured rads finished with paint will tend to produce a 25% or so higher heat output. Strictly speaking in scientific terms, matt black is the very most efficient colour choice.