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Whether you're working on a large heating system upgrade or simply need to replace an existing radiator in your home, you'll find the perfect fit here at City Plumbing.
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Double Panel Radiators
City Plumbing has a vast selection of Double Panel Radiators for sale. The ideal choice for spaces where a high and consistent heat output is required, double panel radiators provide many advantages for homes and buildings that demand increased warmth throughout their rooms all the while promoting increased efficiency long-term.
What Is a Double Panel Radiator?
A double-panel radiator, also commonly known as a Type 22 or K2 radiator, is a heating appliance connected to a central heating system. As the name suggests, it has two steel panels to radiate heat with hot water flowing through both. Between these two panels, there are typically two sets of zigzagging metal strips called convector fins. This design significantly increases the radiator's surface area, which is key to its high heat output.
What Are The Benefits of Double Panel Radiators?
Double-panel radiators offer several key benefits, especially when it comes to heating larger or less-insulated spaces. Here's a breakdown of the advantages:
Increased Surface Area of Heat Source
A double-panel radiator (Type 22) has two panels and two sets of zigzagging convector fins. This design dramatically increases the total surface area that comes into contact with the air. A larger surface area allows the radiator to transfer more heat into the room. It’s a core reason why they are so effective at heating a space.
Deliver Significantly More Heat Than a Single Panel
Due to their increased surface area, double-panel radiators have a much higher heat output (measured in BTUs or British Thermal Units) than single-panel radiators of the same size. This means they can heat a large room or a room with significant heat loss (e.g. a conservatory or a room with large windows) more effectively and quickly than a single-panel radiator.
Keep Rooms Warmer for Longer
While they take a bit longer to heat up initially due to the larger volume of water, double-panel radiators are excellent at maintaining a comfortable temperature. Their high heat output means they can efficiently bring a room to the desired temperature, and then their mass helps to retain that heat, meaning your central heating system won't have to cycle on and off as frequently to keep the room warm. This can contribute to overall system efficiency, especially in larger homes.
How to Use a BTU Calculator When Choosing Double Panel Radiators
Using a BTU (British Thermal Unit) calculator is the most effective way to choose the right size and type of radiator for your room, especially when considering a powerful option like a double-panel radiator. Here is a step-by-step guide on how to use a BTU calculator:
Step 1: Measure Your Room
The most crucial part of the process is getting accurate measurements of the room you want to heat. You will need:
- Length: The length of the room in meters.
- Width: The width of the room in meters.
- Height: The height of the room from floor to ceiling in meters.
Many BTU calculators will then use these dimensions to calculate the cubic volume of the room.
Step 2: Input Additional Room Information
To get a more precise BTU requirement, online calculators will ask for details about the room's construction and characteristics. These factors account for "heat loss," which is the rate at which heat escapes from a space. Common factors include:
- Room Type: Is it a living room, bedroom, bathroom, or hallway? Different rooms have different target temperatures (e.g. a bathroom typically needs to be warmer).
- Number of External Walls: External walls are colder and lose heat more quickly than internal walls.
- Window Type: Single-glazed windows lose significantly more heat than double-glazed windows.
- Number and Size of Windows: More windows or larger windows mean more heat loss.
- Room's Position: Is the room above a cellar or below an uninsulated roof? This affects heat loss through the floor and ceiling.
- Insulation: The level of insulation in the walls, floors, and ceiling.
Step 3: Get Your BTU Requirement
After you input all the required data, the calculator will provide you with a single number. This is your BTU requirement—the amount of heat, in BTUs, that your radiator needs to produce to effectively heat that room to a comfortable temperature.
Step 4: Choose Your Double-Panel Radiator
Once you have your required BTU figure, you can start shopping for double-panel radiators. All radiators should have their BTU output clearly listed in the product specifications.
- Match or Exceed the BTU: Choose a radiator (or a combination of radiators) with a BTU output that is equal to or slightly higher than your calculated requirement.
- Slightly Higher is Better: It's generally recommended to choose a radiator with a slightly higher BTU than you need. You can always turn the radiator down using a thermostatic radiator valve (TRV) to save energy and prevent overheating. A radiator with a BTU that is too low will never be able to heat the room sufficiently, no matter how long it's on.
- Multiple Radiators: For very large rooms, you may find that a single radiator can't meet the BTU requirement. In this case, you can choose two or more radiators and place them strategically in the room to distribute the heat more evenly and avoid cold spots. Simply divide the total BTU requirement by the number of radiators you plan to install.
FAQs About Double Panel Radiators
Are Double Panel Radiators More Efficient?
Double-panel radiators (also known as Type 22) are generally more efficient at heating larger rooms. While they have a higher running cost than single-panel radiators, their ability to provide a greater and faster heat output means they can heat a larger space more effectively and quickly. This can actually make them more energy-efficient in the long run for a big room, as an undersized single-panel radiator would have to work harder and longer to achieve the same temperature, potentially costing more in the end.
Do Double Radiators Cost More to Run?
Yes, a double-panel radiator will cost more to run than a single-panel model of the same size. This is because they have a greater volume of water to heat, requiring more energy. However, as mentioned above, if a room is large and needs a high heat output, a double-panel radiator may be more cost-effective overall because it can heat the space to a comfortable temperature more quickly and efficiently.
What Is the Difference Between Double and Double Panel Plus?
- Double-panel (Type 22): This radiator has two steel panels and two sets of convector fins. The fins are the zigzagging metal strips that help circulate warm air.
- Double Panel Plus (Type 21): This radiator has two steel panels but only one set of convector fins.
The extra set of fins in a Type 22 radiator gives it a greater surface area, resulting in an even higher heat output compared to a Type 21.
Does It Cost More to Fit a Double Panel Radiator?
The cost of fitting a new radiator depends on several factors, but generally, fitting a double-panel radiator may have a slightly higher labor cost than a single-panel one. This is because they are heavier and the installation might be more complex, especially if the new radiator is a different size from the old one, requiring pipework adjustments. The cost of the radiator itself will also be higher.
Can I Change My Single Radiator to a Double Panel?
Yes, you can typically replace a single-panel radiator with a double-panel one. However, there are a few important considerations:
- Pipework: Double-panel radiators are thicker, so you may need to adjust your existing pipework to accommodate the extra depth.
- Brackets: The brackets for a double-panel radiator are different from those of a single-panel one, so you will need to replace them.
- Heat Output: Before making the switch, it's wise to use a BTU calculator to ensure the double-panel radiator's heat output isn't too high for the room.
Can My Boiler Run a Double Panel Radiator?
A modern boiler is generally capable of running a double-panel radiator. However, it's a good idea to consult a professional heating engineer to ensure your boiler's capacity is sufficient for the total heat demand of your entire system. A larger radiator may increase the total volume of water in your system, which your boiler needs to be able to handle.
Do Double Panel Radiators Count as Two on a System?
No, a double-panel radiator does not count as two separate radiators on your system. It is still a single appliance, albeit with a larger heat output due to its design.
What Types of Double Panel Radiators Does City Plumbing Sell?
As the home of heating, City Plumbing sells a fantastic selection of double panel radiators, all made to offer the penultimate comfort to your immediate surroundings. Featuring top brand names such as Myson, Stelrad, Halcyon, and Purmo, here you’ll also find varied BTU/h, designs, colours, finishes, widths, heights, and depths.
Buy Double Panel Radiators at City Plumbing
City Plumbing is the number one local plumbers’ merchant's choice for all homeowners and all installers working in the trade.
With our impressive Trustpilot rating, a huge amount of knowledge from four-plus decades of experience, and some of the most outstanding plumbing and heating products and advice, we will ensure everyone can get the job done the first time.
Offering you access to over 350 branches nationwide, our prices remain the most competitive to further ensure you get all your projects finished on budget.
With several Delivery Options and a Click & Collect service, if you’re looking for a City Plumbing near me, type your postcode into our branch locator to find your nearest City Plumbing Supplies.
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