What Is A Double Panel Plus Radiator?

What Is A Double Panel Plus Radiator

The Double Panel Plus Radiator is a new radiator in the market which is gaining in popularity. It comprises of two panels in which one is in direct contact with the hot water that flows via the system and one panel is in contact with the room air which provides thermal insulation, preventing heat loss to the outside. This in turn saves more energy which would have otherwise been wasted.

The panels are usually made of metal sheets with aluminium on either side, sandwiched with polystyrene insulation material in between. The two metal faces are joined by the screws or snap fixings to prevent them from twisting when hot water flows through it.

In this post, I will be explaining what is a double panel plus radiator and how to it works and whether you should buy it or not.

What is a Double Panel Plus Radiator

A Double panel plus radiator system is a type of heat exchanger that transfers heat from one fluid to another. The two fluids are contained in two separate cavities, which are divided by a thin sheet of metal.

When the liquid cyclically flows into one cavity it can transfer heat to the liquid in the other cavity by conducting energy through a liquid-metal contact surface. The liquid metal absorbs and gives off heat as it changes phase from liquid to gas and vice versa.

Energy efficiency in a double panel plus radiator system is enhanced from two factors. The first factor is that the metal heats up quickly when it comes into contact with the hot liquid, which eliminates the time needed for pre-warming to transfer heat between fluids.

In addition, energy can be transferred much faster since there are no solid walls impeding the flow of energy between fluids. With a double panel plus radiator system it is possible to transfer energy at the same rate as a single walled system, but with twice the amount of effective surface area.

Typically, these systems are made from aluminum and copper. The benefits of aluminum include its low cost and high thermal conductivity. However, the low melting point of aluminum is a drawback.

This problem can be addressed by adding other metals to form an alloy. An aluminum alloy can be 70 percent copper and 30 percent aluminum for improved thermal conductivity while maintaining the low cost of pure aluminum. Copper has excellent thermal conductivity but it also has a high cost.

Therefore, most double panel plus radiator systems are actually composed of a combination of both metals. In the United States the most popular alloy is 2505, which has good properties as a metal sheet and can be rolled, drawn, or welded to make heat exchangers for double panel plus radiator systems.

What is the difference between single panel and double panel radiators?

There is different thicknesses of radiators, the thicker the radiator, generally they are more expensive.

A single panel has thinner metal and therefore gets heated up quicker than a double. A double will heat up more evenly because it has two panels rather than one which equals two times the surface area.

This means that three double panels could heat an average sized room around four degrees Celsius hotter compared to a single panel for a given amount of time.

Single panel radiators need to be placed in an entire room while doubles can be concentrated in a particular spot or group together to achieve maximum heating ability without burning out or overbearing any one spot with heat from their other peers who might not require as much warmth.

The benefits of the radiator

The benefits of a double panel plus radiator plus include a wider range of design, a more efficient heating system, and the ability to cool an area in warm weather. The double panel plus has an insulating material inside the panels, which is beneficial in winter. It keeps heat from being lost to surrounding surfaces.

A single panel radiator does not have this insulation because it’s job is to radiate heat. The double panel plus also gives homeowners more design choices, by allowing for different series of radiating fins and fin gaps.

The purpose of fins on a radiator

The fins serve the purpose of transferring heat from one area to another. Air is made up of molecules, and they are very small compared to the size of the metal fins.

If there are enough fins, then just a little bit of heat can create a lot of convection in air, which is very useful in heating up a room. The fins are usually grouped tightly together to create many hot spots, which will transfer the heat quickly and effectively.

Double panel plus radiator specifications

There are two types of double panel radiators that can be used for central heating systems. The first type uses an upgraded single panel radiator, which has a second panel inside it. The second type has an extra column of panels, which are usually slotted in between the other fins.

These two types have a bigger heat output than a single panel radiator, and they can heat up a larger area or space much faster.

Double panel plus radiators are popular because they have many benefits over standard radiator types.

The double panel plus radiator has a wider range of design options for homeowners and businesses, and they can also be used to cool an area in warmer weather, which single panel radiators cannot do effectively.

Some benefits include

  1. lower heating costs
  2. more even temperatures throughout your home
  3. high levels of comfort
  4. You can change to a different primary source (such as gas) without having to replace the system overall.
What Is A Double Panel Plus Radiator

How does it work

A double panel plus radiator is a type of central heating system. The term “plus” in the name refers to the addition of a secondary heat source such as oil or gas. The heat from the primary source (mostly electric) heats an enclosed chamber containing refrigerant.

Air flows over tubes through this chamber and takes up the heat, which is distributed around your home by a system of ducts.

Why double panel?

A radiator is a common standard secondary heating system, but double panels have one other significant advantage – there are twice as many metal tubes. This makes it much more efficient at transferring heat from the secondary source to your living spaces.

How do I choose?

You can get double panel plus radiators for any room in your home, but it’s important to remember that it’s not a solution for total home heating.

You should consider this when you choose which rooms to equip and how many panels you need:

The smaller the room, the less effective double panels will be at warming it.

  1. For each square metre of living space, around one square metre of double panel plus radiator is required.
  2. Rooms with high ceilings will need a larger surface area to be adequately heated.
  3. Rooms with very low ceilings may not receive enough heat from double panels alone.

What options are available?

Double panel plus radiators can have up to 24 panels which means they can heat some of the largest spaces as well as some of the smallest.

In terms of colour, you have four different options: white, silver, anthracite and graphite.

How much does it cost?

Double panels are expensive to purchase but the running costs are significantly lower than for other heating systems.

You can expect to pay around twice as much for a double panel system compared with a standard radiator.

An electrician will be required to install the system, which can vary in cost depending on the size of your installation.

Will I need planning permission?

If you live in a listed building, check with the local council before installing any new heating systems.

If not, double panel plus radiators are classified as “permitted development” and planning permission is not required.

What happens next?

By choosing a double panel plus system, you’re taking control of your heating costs and ensuring optimum levels of comfort in all weathers.


Double panel plus radiators are a popular choice for homeowners and business owners looking to save on heating costs, maintain even temperatures throughout their home, and increase comfort levels. A double panel radiator is an advanced central heating system that can be used as either the primary or secondary source of heat in your living space.

One way it differs from other types of radiators is because there are twice as many metal tubes inside which makes them more efficient at transferring heat than standard single panels.

The main advantage they have over traditional systems is that you don’t need to replace your entire system if you want to switch out one type of fuel for another (such as gas) – something most single panel radiators cannot do well! Double Panel Plus Radiators also offer a number of other benefits, such as a design that suits a variety of installation options and they are available in four different colors.

In most cases this type of radiator does not require planning permission to install, which can save you time and money with installation costs. In addition to the savings, the overall comfort levels will be increased due to advanced heat distribution.

In the end, having a double panel radiator is a great way to save both energy and money for your heating system.


I am John Oakley. I love to share tips and reviews on products to keep our homes warm and comfortable.

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