Need Help?
Call an heating expert on 01282 429061
| Manufacturer | Kartell UK Ltd |
|---|---|
| Manufacturer Warranty | 5 Years (T&C’s Apply) |
| Width | 1040 mm |
| Heat Output BTU | 4309 |
| Radiator Pipe Centres (mm) (Plus Valves) | 510 |
| Radiator Wall To Pipe Centres (mm) | 50 |
| Radiator Colour | White |
| Model | Boston White |
| Brand | K-Rad Designer Range |
| Fuel Type | Central Heating |
| Width (mm) | 550 |
| Height (mm) | 1800 |
| Manufacturer Part No | BOS1800-550W |
Home > Radiators > Designer Radiators > Vertical Radiators > KRAD Boston 1800 x 550mm White Single
A premium gloss white vertical designer radiator delivering 4,309 BTU from a slim 560mm body. 1800mm height, single panel construction, 52mm depth, 26.1kg. 5 year Kartell UK manufacturer guarantee. All fixings included.
The largest single panel option in the Boston range, the Kartell K-Rad Boston 1800 x 550mm White Vertical Single Designer Radiator is the natural choice when you need maximum heat from a single vertical unit. The 560mm body delivers a powerful 4,309 BTU (1,263W) from a slim 52mm profile — ideal for large living rooms, family rooms and open-plan kitchen-diners. The gloss white finish keeps even large rooms feeling bright and modern. SKU: BOS1800-550W.
At 1800mm tall and 560mm wide, this is the biggest single-panel Boston in the range — the natural choice when one vertical unit needs to deliver maximum heat for a large room.
The 9-tube full-height single panel delivers enough heat for large living rooms, family rooms and open-plan kitchen-diners up to approximately 19m² with average insulation.
Despite the dramatic full-height, wider proportions, the single panel construction sits just 52mm from the wall — preserving floor space and giving a clean modern profile.
The premium gloss white powder coat (RAL 9003) is durable, scratch-resistant and brightens interiors — the natural choice for large family rooms, hallways and open-plan kitchen-diners.
The 26.1kg weight reflects the solid mild steel construction — this is a serious designer radiator, with proper heft and presence in the room.
Full coverage on the genuine 5 year guarantee — registered direct with Kartell UK in your name. This is the original Kartell-branded Boston, not a re-branded copy.
| Specification | Detail |
|---|---|
| Product Name | Kartell K-Rad Boston 1800 x 550mm White Single Vertical Designer Radiator |
| SKU / Kartell Code | BOS1800-550W |
| EAN / GTIN-13 | 5060168223791 |
| Height | 1800mm |
| Width | 560mm (catalogue size 550mm) |
| Depth | 52mm (single panel) |
| Weight | 26.1kg |
| Orientation | Vertical |
| Colour / Finish | Gloss White (RAL 9003) |
| Material | Mild Steel |
| Panel Type | Single Panel — Designer Flat Tube |
| Number of Tubes | 9 |
| BTU Output (Delta T60) | 4,309 BTU |
| Watt Output (Delta T60) | 1263W |
| Fuel Type | Central heating — gas, oil, electric or heat pump |
| Pipe Centres | 560mm |
| Wall to Pipe Centres | 50mm |
| Valve Connection | 1/2 inch BSP |
| Max Working Pressure | 6 bar (pressure tested to 10 bar) |
| Fixings Supplied | Yes — all wall fixings included |
| Manufacturer Guarantee | 5 years — Kartell UK |
| Valves Included | Not included — sold separately (see Valves tab) |
All outputs quoted at Delta T60 — the European standard assuming 80°C flow / 60°C return in a 20°C room.
Watch our step-by-step guide. All central heating connections must be made by a qualified heating engineer.
| Pipe Centres | 560mm |
| Wall to Pipe Centres | 50mm |
| Wall Projection | 52mm |
| Valve Connection | 1/2 inch BSP — angled, straight or corner |
| Max Working Pressure | 6 bar (pressure tested to 10 bar) |
| Compatible Systems | Sealed and open vented — gas, oil, electric, heat pump |
| Fixings Supplied | Yes — wall brackets, screws, plugs, air vent, blanking plug |
Valves are not included and must be purchased separately. We recommend matching Kartell K-Design White or Chrome TRV twin packs to complement this radiator perfectly. Select your pipework type below.
When to use: Pipework rises vertically from the floor and connects to the side tappings of the radiator. This is the most common UK installation type for vertical radiators.
When to use: Pipework rises directly from the floor into the bottom tappings in a straight vertical line.
When to use: Pipework rises behind the radiator and connects to the bottom tappings at an angle, giving a clean concealed finish.
ⓘ Unsure which type? Call 01282 429061 Monday to Friday and our team will advise.
Yes — for typical UK large living rooms or open-plan kitchen-diners up to 19m² with average insulation, 4,309 BTU is generally sufficient as the sole heat source. For very large rooms (20m²+) or poorly insulated properties, you may need a second radiator or a double-panel version — use the BTU Calculator above to confirm.
Allow approximately 1900mm tall x 660mm wide total wall space — the radiator itself is 1813mm tall and 560mm wide, plus clearance for valves and pipework. Pipe centres are 510mm.
This radiator projects 52mm from the wall — one of the slimmest profiles in the Boston single panel range, helping preserve floor space and giving a clean, unobtrusive appearance even at this larger size.
No — valves are sold separately. We recommend matching Kartell K-Design White or Chrome TRV twin packs for visual consistency. See the Valves tab above for angled, straight or corner options depending on your pipework.
Yes — this is the original Kartell-branded Boston (BOS1800-550W, EAN 5060168223791) supplied through Kartell UK’s authorised distribution. Some retailers re-brand the same Kartell radiator under their own house name; we don’t. You get the genuine Kartell guarantee, registered in your name.
Yes — the Boston operates well at lower flow temperatures typical of modern air-source heat pump systems. At heat pump flow temperatures (often Delta T30 or T40) the BTU output will be lower than the quoted Delta T60 figure — call 01282 429061 for sizing advice.
Looking for the largest white vertical radiator in the Boston range? The Kartell K-Rad Boston 1800 x 550mm White Vertical Single Designer Radiator (BOS1800-550W) delivers 4,309 BTU from a 560mm wide single panel — the biggest single panel option in the range. Closest match for the following searches: 1800 x 540mm white vertical radiator, 1800 x 560mm white vertical radiator, 1800 x 600mm white vertical radiator, 1820 x 550mm tall white radiator, 1850 x 550mm white vertical radiator, 1800 x 555mm white vertical radiator, large white vertical radiator 550mm, Kartell Boston 1800 550 white, BOS1800-550W, EAN 5060168223791. Also commonly searched as: large living room vertical radiator white 1800mm, designer white vertical radiator UK 1800mm 550, white flat-tube radiator 52mm depth 1800mm 550, biggest single panel white vertical radiator 1800.
| Free Delivery | Free express delivery on orders over £500 to UK mainland addresses |
| Standard Delivery | Charged at £30 inc VAT on orders under £500 — calculated at checkout |
| Delivery Area | UK mainland only — excludes Northern Ireland, Scottish Highlands, Channel Islands and overseas |
| Lead Time | Maximum 14 working days from order. Call 01282 429061 to confirm current availability |
| Despatch Confirmation | Email confirmation sent when your order is despatched |
| Delivery Address | We deliver to your registered billing address only |
| Finance Options | Spread the cost with Klarna or Clearpay — available at checkout |
| Returns Window | 14 days from receipt of goods |
| How to Return | Request a returns number in writing before sending items back. Call 01282 429061 or email us |
| Return Postage | Cost of returning goods is borne by the customer. Original delivery charges are non-refundable |
| Restocking Charge | A 25% restocking charge may apply to non-faulty returns |
| Condition of Return | Items must be unused and in original, unopened packaging |
| Refund | Upon receipt and inspection a full refund, exchange or credit note will be issued |
| Faulty Items | Sent to manufacturer for testing. If confirmed faulty, 100% of the original product value will be credited |
| Guarantee | This radiator carries a 5 year Kartell UK manufacturer guarantee against manufacturing defects |
