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| Manufacturer Warranty | 5 Years (T&C’s Apply) |
|---|---|
| Orientation | Vertical Orientation |
| Colour | Black |
| Height | 1800 mm |
| Width | 515 mm |
| Heat Output Watts | 1789 |
| Heat Output BTU | 6105 |
| Radiator Pipe Centres (mm) (Plus Valves) | approx. 515 |
| Radiator Projection (mm) | 98-108 |
| Radiator Wall To Pipe Centres (mm) | 30-40 |
| Manufacturer | Kartell |
| Manufacturer Part No | BLK21800515 |
The widest of the black verticals is the one to choose when a tall radiator has to do serious heating work. Eleven sections across 515mm produce 6,105 BTU (1,789W) at Delta T60, so a single wall slot can carry an open-plan corner, a draughty stairwell or a home office with a wall of glazing. Vertical column radiators of this output are rare - most tall designs trade heat for looks; this one keeps both.
The Klassic profile is deliberately faithful to early twentieth century column radiators, but in laser-welded mild steel at a fraction of cast iron weight. Matt black RAL 9004 powder coat, 10 bar pressure testing and Kartell's five year guarantee come as standard; valves are chosen separately so the finish can match your scheme.
Range photography is for illustration - the number of sections varies with the size ordered. This listing is the 1800 x 515mm 2 column model with 11 sections. Dimension drawing included in the gallery.
Start with the room, not the radiator: output should match the space's heat loss.
| Output at Delta T60 (Kartell published) | 6,105 BTU / 1,789W |
|---|---|
| Output at Delta T50 (calculated, EN442 factor) | approx. 4,817 BTU / 1,412W |
| Typical room coverage | roughly 11-15 square metres in an average UK home |
Coverage is a guide only - insulation, glazing area and ceiling height change the sums. Use a BTU calculator with your room dimensions before ordering, and size up slightly for north-facing or draughty rooms.
| Range | Kartell K-Rad Laser Klassic |
|---|---|
| Type | 2 column radiator (vertical) |
| Height x Width | 1800 x 515mm |
| Column depth | 68mm (allow 98-108mm wall to front face) |
| Sections | 11 |
| Heat output (Delta T60) | 6,105 BTU / 1,789W |
| Heat output (Delta T50, calculated) | approx. 4,817 BTU / 1,412W |
| Finish | Matt black RAL 9004 powder coat over mild steel |
| Material | Laser-welded mild steel |
| Tapping centres | approx. 515mm - valves at bottom opposite ends |
| Weight (empty) | 32.7kg |
| Pressure tested | 10 bar |
| Guarantee | 5 years (register with Kartell UK) |
| In the box | Radiator, wall brackets, fixing kit, instructions |
| Valves | Not included - sold separately |
Any heating engineer will treat this as a straightforward swap or first fix.
Valves are not included. You need a pair: one wheelhead or thermostatic (TRV) valve plus one lockshield. Angled valves suit pipework rising from the floor; straight valves suit wall-fed pipe runs.
See our radiator valves range - the Kartell TRV and lockshield twin packs pair perfectly.
Orders are picked from live UK stock. Radiators are palletised or double-boxed and checked before dispatch - please inspect on arrival and note any transit damage with the driver.
