Enhance your space with the timeless appeal and reliable warmth of a 600 mm white horizontal column panel radiator. The classic horizontal layout is perfect for installation under windows or along standard walls, providing excellent heat distribution. The smooth white finish complements any interior décor, from traditional to contemporary. Choose a Single Panel for a slimmer profile or a Double Panel when you need a higher BTU output for larger spaces.
Why this model?
- Efficient Heat Distribution: The wide column design ensures consistent and comfortable warmth across the room.
- Versatile Installation: The classic low-profile design fits perfectly under windows and integrates seamlessly into traditional room layouts.
- Built for Everyday Life: The durable, smooth white finish is easy to clean and maintains a fresh, bright appearance for years to come.
Single vs Double Panel
- Single Panel: A slimmer profile; ideal for smaller rooms or where projection from the wall is a concern.
- Double Panel: Greater surface area provides a higher BTU output, making it ideal for larger rooms or areas with higher heat loss.
Sizing & BTU Guidance
Always size your radiator by BTU requirement rather than physical dimensions. Use our BTU Calculator to estimate the ΔT50 BTU output needed based on room dimensions, insulation, and glazing. You can meet the total BTU requirement with one larger radiator or by combining multiple radiators in the same room.
What’s Included
- Wall brackets & fixings
- Blanking plug & bleed valve
- Installation guide
Valves not included. Pair with angled or straight valves to suit your pipework; a thermostatic (TRV) set is recommended for finer temperature control.
Available Widths & Panel Options (600 mm Height – White Horizontal)
| H (mm) | W (mm) | Type | Bars | Pipe Centres |
Wall Pipe | Wall Distance |
BTU | W |
|---|---|---|---|---|---|---|---|---|
| 600 | 420 | Single | 6 | 420 mm | 50 mm | 79 mm | 1220 | 358 |
| 600 | 630 | Single | 9 | 630 mm | 50 mm | 79 mm | 1830 | 537 |
| 600 | 770 | Single | 11 | 770 mm | 50 mm | 79 mm | 2236 | 656 |
| 600 | 980 | Single | 14 | 980 mm | 50 mm | 79 mm | 2845 | 834 |
| 600 | 1190 | Single | 17 | 1190 mm | 50 mm | 79 mm | 3457 | 1014 |
| 600 | 1470 | Single | 21 | 1470 mm | 50 mm | 79 mm | 4271 | 1252 |
| 600 | 420 | Double | 12 | 420 mm | 63 mm | 94 mm | 1974 | 579 |
| 600 | 630 | Double | 18 | 630 mm | 63 mm | 94 mm | 2961 | 868 |
| 600 | 770 | Double | 22 | 770 mm | 63 mm | 94 mm | 3618 | 1061 |
| 600 | 980 | Double | 28 | 980 mm | 63 mm | 94 mm | 4606 | 1351 |
| 600 | 1190 | Double | 34 | 1190 mm | 63 mm | 94 mm | 5594 | 1640 |
| 600 | 1470 | Double | 42 | 1470 mm | 63 mm | 94 mm | 6909 | 2026 |
- Orientation
- Horizontal
- Finish
- Classic White, smooth and easy-to-clean
- Material
- Low-carbon steel
- Compliance
- BS EN 442
- System Type
- Closed-loop (water) central heating
- Connections
- Standard radiator valve connections
- Warranty
- 5 Years
- Height
- 600 mm
- Widths
- 420 mm – 1470 mm
- Panel options
- Single or double
- Bars
- 6 – 21 on single · 12 – 42 on double
- Pipe centres
- Match the radiator width, 420 mm – 1470 mm
- Wall pipe centres
- 50 mm on single · 63 mm on double
- Projection from wall
- 79 mm on single · 94 mm on double
- Heat output ΔT50
- 1220 – 4271 BTU on single · 1974 – 6909 BTU on double
- Wattage ΔT50
- 358 – 1252 W on single · 579 – 2026 W on double
- SKU
- RV-HRH066SW
- Brand
- Companyblue
Heat outputs are quoted at ΔT50. The figure for each individual size is in the Sizes & heat output tab.
- 5 year guaranteemanufacturer backed
- Fast UK delivery1–2 working days · free over £200
- In stockorder by 2pm and it ships the same day
- Expert advicecall or WhatsApp us, Mon–Fri 9am–5pm
Where it goes
Made for the wall under a window
A horizontal panel at 600 mm goes where radiators have always gone — under the window, along the wall behind a sofa, below a worktop run. Cold air falling off the glass meets the heat on its way down, which is the whole reason that spot became the convention.
- 1220–6909
- BTU at ΔT50, across the range
- 12
- sizes, 420 to 1470 mm wide
- 79 mm
- projection on a single panel
Build
Steel, finished in white
Low-carbon steel under a white powder coat, with flat panels rather than round tubes — the face wipes down in one pass. Outputs are measured to British Standard BS EN 442, and the radiator carries a five-year guarantee.
- Low-carbon steel, white powder-coated finish
- Outputs tested to BS EN 442
- Closed-loop water central heating, combi or system boiler
- 5 year guarantee
Before you order
Valves are the one thing to add
Brackets, fixings, blanking plug and bleed valve are in the box; valves are not. Which pair depends on where your pipes come into the room, and a thermostatic set lets this room hold its own temperature rather than follow the rest of the house.
Which valve fits your pipework?
All three hold this room at the temperature you set on the dial, independently of the rest of the house. What changes between them is how your pipes come into the room.
| Valve | Choose it when | Price | Product page |
|---|---|---|---|
Straight TRV, whiteFloor pipes
|
Pipes come up out of the floor under the radiator inlets and carry straight on into the valve. | £36.00 | View the straight trv, white valve |
Angled TRV, whiteWall pipes
|
Pipes leave the wall horizontally. The valve turns them 90° into the radiator for you. | £36.00 | View the angled trv, white valve |
Corner TRV, whiteWall pipes
|
Also wall pipes, but tucked in tighter — the body sits close to the wall and stays out of the way. | £36.00 | View the corner trv, white valve |
Still unsure? See the full valve range
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