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Towelrads Iridio Anthracite Towel Rail 1500mm x 500mm
£295.24
each, Ex. VATLoading...
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Black Radiators
City Plumbing presents black radiators that combine efficient home heating with modern design. Whether you need a high-output black column radiator for traditional spaces or a sleek, vertical option as a focal point, our range delivers strong BTU performance and durable, scratch-resistant finishes.
We offer models compatible with central heating, as well as versatile black electric radiators or dual-fuel towel rails for flexible bathroom and extension installations. Explore our collection to find a stylish, efficient, high-quality black radiator for any room upgrade.
Black Radiators Buying Guide
BTU / Heat Output: The Critical First Step:
- BTU (British Thermal Unit) Requirement: You must know the required BTU output for your room before choosing any style.
- Purpose of BTU: The BTU rating indicates the energy needed to effectively heat a room.
- Risk of Incorrect BTU: Choosing the wrong output results in an inefficiently heated room (either too cold or wasted energy).
- Calculation Factors: BTU calculations are complex, factoring in:
Room size (length times width times height)
Number of windows (especially single glazing)
Number of external walls
Insulation quality
- Action: Use a dedicated BTU Calculator to get an accurate figure.
- Selection Rule: Choose a radiator with a BTU output that matches or slightly exceeds the calculated requirement.
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Radiator Types and Their Purpose (Black Finishes Available)
- Designer: Focuses on aesthetic appeal (unique shapes/flat panels); often a statement piece.
Ideal For: Living rooms, kitchens, hallways, or where style is a priority.
- Column: Features a classic/period-style with visible vertical columns (2, 3, 4+ deep); high heat output for its size.
Ideal For: Period properties, kitchens, and rooms that need high heat in a vintage/industrial style.
- Panel: The most common, traditional style with a flat front panel; available as Single (Type 11) or Double (Type 22) for higher output.
Ideal For: Bedrooms, offices, and utility areas that need a discreet, practical heat source.
- Towel Rail: Features horizontal bars to warm and dry towels while heating the room.
Ideal For: Bathrooms, en-suites, and cloakrooms.
- Electric: Contains a heating element (fluid or dry-filled); works independently of the central heating system.
Ideal For: Rooms without central heating access (e.g., conservatories, garages) or bathrooms that need heat in the summer.
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Specific Black Radiator Styles:
Black Column Radiators
- Style: Industrial, period-chic. More columns increase depth and heat output.
- Practicality: Excellent heat retention, though they take slightly longer to heat up than panel radiators.
- Key Consideration: Check the projection (how far it sticks out from the wall).
Black Designer Radiators
- Style: Modern, minimalist, or bold, including flat, sculpted, or mirrored panels.
- Practicality: Highly versatile in shape (vertical or horizontal) to fit awkward spaces. Can be chosen purely for their visual impact.
- Key Consideration: Designer styles can make them more expensive than standard panel radiators.
Black Panel Radiators
- Style: Simple, sleek, and unassuming. The black finish transforms a basic panel into a modern feature.
- Practicality: Highly efficient with fast heat-up; Double Panel (Type 22) offers more BTU than Single Panel (Type 11).
- Key Consideration: A high BTU in a small footprint requires a double-panel model.
Black Vertical Radiators
- Style / Practicality: A modern alternative to traditional horizontal models.
Space-Saving: Ideal for rooms with limited wall width (e.g., between two windows, in a hallway) as they utilise height.
Design Statement: They draw the eye upwards and make a strong design feature.
Heat Output: Modern vertical designs are highly efficient and can deliver the same heat output as a horizontal model when the BTU rating is correct.
Black Towel Rails
- Style: Ladder-style (most common), curved, or unique designer bars.
- Practicality: Essential for dual function in bathrooms: warming towels and heating the room.
- Key Consideration: Ensure the BTU is sufficient to heat the bathroom, not just the towels. Many can be Dual Fuel (central heating in winter, electric element in summer).
Black Electric Radiators
- Style: Available in designer, panel, or towel rail formats. They look identical to their central heating counterparts.
- Practicality: Ideal for isolated rooms or where pipework is impractical. Independent control is useful for summer bathroom heating.
- Key Consideration: Check the Wattage rating, which is the equivalent heat output to BTU.
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Fuel: Central Heating vs. Electric
The choice of fuel dictates how your radiator is powered and controlled.
Central Heating
- How it Works: Hot water from a boiler or heat pump flows through the radiator.
- Ideal Scenario: Whole-house heating, where all rooms need to be heated simultaneously.
Electric
- How it Works: A sealed heating element heats oil or gel inside the unit. It is plugged into a socket or hard-wired.
- Ideal Scenario: Areas without existing pipework, or where heat is only needed occasionally (e.g., a conservatory, garage, or summer bathroom).
Dual Fuel
- How it Works: Connects to central heating but also has a backup electric element for independent use.
- Ideal Scenario: Bathrooms with warm towels, even when the central heating system is off during the summer.
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Size and Dimensions
Radiators come in a wide range of sizes to meet BTU requirements and fit available wall space.
- Horizontal vs. Vertical: This is your primary choice. If wall width is limited, a taller Vertical radiator is the answer. If you have plenty of width (e.g., under a window), a traditional Horizontal model is best.
- Depth (Projection): This is especially important for smaller rooms and hallways. A single panel (Type 11) or a slim designer model will be much shallower than a thick 4-column radiator or a double-panel/double-convector (Type 22). Always check the projection from the wall.
- Variety: Sizes can range from compact cloakroom towel rails (e.g., 600mm x 400mm) to huge feature-piece designer radiators (e.g., 1800mm x 800mm). Always measure your available space before you shop.
Specific Benefits of Black Radiators
- Durable Coated Finishes: Black radiators typically feature a robust powder-coated finish that offers practical benefits:
It is generally more resistant to scratching and chipping than standard painted white radiators.
The dark colour effectively hides marks, dust, and minor blemishes/dirt better than lighter finishes, maintaining a clean look with less frequent maintenance.
- High BTU Options for Larger Rooms: Black finishes are available on high-output radiator styles (like deep column radiators and large vertical designer models).
This ensures that, even in larger rooms or areas with high heat loss, you can find a visually appealing black radiator that meets the required BTU output.
Reminder: Always use the BTU calculator to accurately size your unit.
- Multiple Connection Types for Retrofit Jobs: Black radiators, especially column and designer models, often offer flexible connection options, which is a major benefit for replacing old radiators:
Standard Connections: Most radiators feature connections at the base (the bottom, opposite ends, or the same end).
Side Connections: Some models offer specific side-entry points that align perfectly with existing pipework locations, minimising the need for costly, disruptive plumbing adjustments during retrofit.
- Stocked for Quick Delivery: Due to their popularity as a modern aesthetic choice, many black radiator types (especially standard sizes and popular column/designer styles) are widely stocked.
This often means they are available for next-day or fast delivery, shortening project timelines compared to custom or niche colours.
Black Radiator Technical Considerations
Pipe Centre Considerations for Retrofit
When replacing an older, traditional radiator with a new black model (especially designer or column styles), the existing pipework can pose a challenge.
- Pipe Centres: The precise distance between the centres of the inlet and outlet pipes. Older radiators often have non-standard or imperial pipe centres.
- New Radiators: Modern radiators have defined pipe centres that may not align with those of older ones.
- Solutions for Misalignment:
New Pipework: For large differences or vertical radiators, the pipework may need to be altered by a plumber, which adds cost and complexity.
Adjustable Valves: Using Angled or Corner radiator valves allows for minor adjustments to bridge a gap or turn pipework coming from the wall or floor.
Telescopic or Specific Radiators: Some manufacturers offer radiators designed to fit common older pipe centres.
- Finishing Touches: To maintain the sleek black look, use black pipe sleeving kits and matching black valves to cover any exposed copper pipework leading up to the connection.
Wall Type and Mounting Loading Guidance
Radiators, especially large designer or multi-column models when filled with water, can be very heavy (easily exceeding 30-40 kg). Proper mounting is critical for safety.
- Solid Walls (Brick/Concrete): These are ideal. Use standard masonry drill bits, screws, and appropriate rawl plugs (wall anchors) for a secure fixing.
- Plasterboard/Drywall (Stud Walls): This requires caution. Ideally, you should fix the brackets directly to the wooden studs. If studs are not in the right position, you must use specialist, heavy-duty cavity fixings (e.g., toggle bolts, Grip-it plugs, or long frame fixings for dot-and-dab walls) that spread the load across the back of the plasterboard.
- Safety Check: Always ensure the wall can support the weight of the radiator when fully filled. Consult the manufacturer's installation manual for the exact dry weight and recommended fixings.
Warranty Lengths and Certification
Warranty and certification provide peace of mind regarding quality and safety.
- Warranty Duration: A good warranty indicates the manufacturer's confidence in the product's longevity.
Standard: Most reputable steel radiators (panel and designer) come with a 5- to 10-year warranty.
Premium/Material-Specific: Stainless steel and high-quality cast iron models can carry guarantees of 15 to 25 years.
Electric Models: Often have a long warranty on the radiator body (e.g., 10 years) but a shorter warranty on the electrical components (e.g., 1–2 years).
- Warranty Conditions: Warranties are often void if:
The unit is not installed by a qualified professional.
The central heating system is not chemically cleaned and maintained with an inhibitor (to prevent internal corrosion).
Abrasive cleaners are used on the black finish.
- Certification (e.g., CE, EN 442):
CE Mark: This is mandatory for sale in the European Economic Area (EEA) and signifies the product meets the EU standards for safety, health, and environmental protection.
EN 442: This is the European standard for radiators and convectors. Compliance means the radiator's BTU output has been independently tested and verified, ensuring the claimed heat output is accurate. Always choose a radiator that is EN 442 certified to trust the BTU rating.
Frequently Asked Questions About Black Radiators
1. Are black radiators less efficient than white? Do black radiators work better than white?
- Impact on Efficiency: No, the colour makes almost no practical difference to the overall heat output or efficiency.
- The Science: While black surfaces are technically better at emitting radiant heat than white ones (by about 1%), the vast majority of heat from a radiator (especially modern panel and convector models) is distributed through convection (warming the air), which is not affected by colour.
- Conclusion: Do not choose a black radiator for a heat boost. The single most important factor for efficiency is having the correct BTU output for your room size.
2. Do black radiators mark or scratch more easily?
- Scratching: High-quality black radiators use a durable powder-coated finish that is chip- and scratch-resistant, similar to a good white radiator.
- Visibility of Marks:
Marks/Dirt: Black is generally more forgiving than white for minor dirt, smudges, and fingerprints, as these marks are less noticeable.
Dust: Conversely, on a dark, flat (matte) surface, light-coloured dust may be more visible than on a white radiator. Regular dusting (especially with a soft brush for column models) is recommended.
3. What finish is best for black radiators? Black vs. Anthracite.
The choice comes down to the desired aesthetic:
Black vs. Anthracite Finishes
- Black (Matte/Satin)
Colour Description: Deep, true black (like charcoal or pitch black).
Aesthetic/Style: Bold, Modern, Industrial.
Effect: Creates a high-contrast focal point or can disappear completely against a dark feature wall.
- Anthracite
Colour Description: A very dark charcoal grey, often with a subtle metallic silver/sparkle fleck.
Aesthetic/Style: Contemporary, Sophisticated.
Effect: Softer than true black, making it a highly popular neutral that complements modern grey palettes and subtle metallic fixtures.
Choosing a shade: If you want a striking, high-impact contrast or an industrial feel, choose Black. If you want something dark that is slightly more subtle and versatile across modern décor schemes, choose Anthracite.
4. Can I paint my white radiator black?
- Yes, you can, but the result won't be as good as a factory finish.
- Method: You must use a specialist heat-resistant radiator paint (available in spray or liquid form). Proper preparation (cleaning and sanding) is essential for adhesion.
- Drawbacks vs. Factory Finish:
Durability: The finish applied by hand or spray will not be as uniform, smooth, or as durable as a professional, baked-on powder coating used on factory-made black radiators.
Efficiency Risk: Applying too many thick layers of paint can act as an insulating layer, slightly hindering the heat transfer and reducing the radiator's efficiency.
5. Do black radiators work better than white?
Black radiators do not offer a practical performance advantage over white radiators. While black surfaces are technically superior at emitting radiant heat, radiators heat a room primarily through convection (warming the air), which is unaffected by colour.
The slight difference in radiant heat is typically less than 1% of the total output and is too small to notice or impact your heating efficiency. The radiator's ability to heat a room is solely determined by its correct BTU output, size, and design, not its colour. Choose black for its sleek, aesthetic appeal, not for better performance.
What Types of Black Radiators Does City Plumbing Sell?
City Plumbing stocks a vast selection of black radiators from several reputable brands, including:
- iflo
- Purmo
- Stelrad
- Towelrads
From column, panel, and compact designs to towel radiators, our products are competitively priced to help all customers stay on budget and are available to purchase online or in-store.
Buy Black Radiators at City Plumbing
City Plumbing is preferred by all in the trade and by homeowners searching for a reputable local plumber's merchant.
Offering all customers a high Trustpilot rating, alongside a mass of knowledge from four-plus decades of experience, and superior plumbing and heating products and advice, we’re here to help you get the job done.
With more than 350 branches nationwide, our prices are competitive to help ensure you finish all your projects 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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