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Kartell K-Rad Aspen Vertical Radiator 1800 x 420mm Double White — 6,531 BTU

In stock
SKU
ASP18-43VDW
£159.36

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Call an heating expert on 01282 429061

Key Features

More Information
Manufacturer Kartell UK Ltd
Manufacturer Warranty 5 Years (T&C’s Apply)
Weight 30.02
Orientation Vertical Orientation
Panel Type Double Panel Radiator
Colour White
Height 1800 mm
Width 420 mm
Heat Output BTU 6531
Radiator Pipe Centres (mm) (Plus Valves) 420
Radiator Wall To Pipe Centres (mm) 60
Radiator Colour White
Model Aspen White Vertical Double
Brand K-Rad Designer Range
Fuel Type Central Heating
Width (mm) 420
Depth (mm) 79
Height (mm) 1800
Manufacturer Part No ASP18-43VDW

Product Details

Home > Radiators > Designer Radiators > Vertical Radiators > Kartell K-Rad Aspen Vertical Radiator 1800 x 420mm Double White

Kartell K-Rad Aspen — Double White Vertical Radiator

Kartell K-Rad Aspen Vertical Radiator 1800 x 420mm Double White — 6,597 BTU

A double panel designer vertical radiator delivering 6,597 BTU from a 79mm profile. 1800mm tall, 420mm wide, 28 oval tubes. Gloss White finish. 5 year Kartell UK manufacturer guarantee. All fixings included.

6,597 BTU at Delta T60 1,934W 5 Year Guarantee Gloss White Double Panel 1800 x 420mm SKU: ASP18-43VDW EAN: 5055681407476
6,597
BTU Delta T60
1,934W
Watts
1800
Height mm
420
Width mm
79
Depth mm
5yr
Guarantee
The Kartell K-Rad Aspen 1800 x 420mm Double White is our most popular full-height double-panel designer radiator for living rooms and hallways. At 420mm wide it fits comfortably between doorframes and in alcoves, and the double panel construction delivers a powerful 6,597 BTU (1,934W) — ideal for rooms up to 18m² with average insulation. The 79mm depth is the only trade-off versus the 55mm single. Gloss white. SKU: ASP18-43VDW. 5-year Kartell UK guarantee.
The Kartell K-Rad Aspen Vertical Radiator 1800 x 420mm Double White delivers 6,597 BTU (1,934W) at Delta T60 from a depth of just 79mm. The 79mm depth projects further than the single panel but delivers significantly more heat. Finished in gloss white and backed by a 5 year manufacturer guarantee from Kartell UK with all fixings included.
Free Delivery Over £500
5 Year Guarantee
All Fixings Included
UK Stock
79mm Profile
Why choose the Aspen Vertical Radiator 1800 x 420mm Double White?
1

6,597 BTU Verified Output

Tested and certified at Delta T60. Suitable for medium-to-large rooms with average insulation. Use our BTU Calculator tab for a room-specific check.

2

420mm Wide — Mid-width in the 1800mm Range

Balances width and output for most room types. 420mm pipe centres.

3

Double Panel — 79mm Depth

Double panel construction doubles the heat output versus the same-size single panel. The 79mm depth is a modest trade-off for the extra warmth.

4

5 Year Kartell UK Guarantee

Registered directly with Kartell UK, covering all manufacturing defects from date of purchase.

5

28 Designer Oval Tubes

Greater surface area than round tubes means more efficient heat transfer. The oval profile also gives a more premium aesthetic than standard flat panel radiators.

6

Ready to Install — All Fixings Included

Weighing 26.4kg empty with all wall brackets, fixing screws, wall plugs, air vent and blanking plug supplied. Valves sold separately.

Full Technical Specification
SpecificationDetail
Product NameKartell K-Rad Aspen Vertical Radiator 1800 x 420mm Double White
SKU / Kartell CodeASP18-43VDW
EAN / GTIN5055681407476
Height1800mm
Width420mm
Depth (Total Wall Distance)79mm
OrientationVertical
Colour / FinishGloss White
MaterialMild Steel
StyleDouble Oval Tube — Designer
Number of Tubes28 (Double Panel)
BTU Output (Delta T60)6,597 BTU
Watt Output (Delta T60)1,934W
Fuel TypeCentral heating — gas, oil, or electric
Pipe Centres420mm
Wall to Pipe Centres60mm
Valve Connection1/2 inch BSP
Empty Weight26.4 kg
Max Working Pressure7.8 bar
Fixings SuppliedYes — all fixings included
Manufacturer Guarantee5 years — Kartell UK
ValvesNot included — sold separately (see Valves tab)
Need a different size or output?
At 6,597 BTU this radiator suits medium-to-large rooms with average insulation. Use the BTU Calculator tab for a room-specific recommendation. Alternatively view the 1800 x 540mm Single (wider).
Compare other sizes in this range
Size (H x W)BTU (ΔT60)WattsStyle
1800 x 420mm THIS PRODUCT6,5971,934WDouble Panel
1800 x 420mm Single 3,368987WSingle
1800 x 300mm Double 4,6641,367WDouble
1800 x 540mm Single (wider)4,309See ProductSingle
Is this radiator powerful enough for your room?
Kartell K-Rad Aspen Vertical Radiator 1800 x 420mm Double White — 6,597 BTU at ΔT60
At 6,597 BTU, this radiator suits medium-to-large rooms with average insulation. Enter your room details below.
Free BTU Calculator
Enter your room dimensions below — we will calculate your exact heat requirement.
Your exact room heat requirement:
Understanding Delta T60

All radiator heat outputs are quoted at Delta T60 — the European standard assuming a mean water temperature 60°C above room temperature. Most modern combi boilers operate at or near this standard.

How to install a designer vertical radiator — video guide

Watch our step-by-step installation guide below. Professional installation by a Gas Safe registered engineer is strongly recommended for all connections to gas central heating systems.

Installation Notes
Pipe Centres420mm
Wall to Pipe Centres60mm
Wall Projection79mm
Valve Connection1/2 inch BSP — angled, straight, or corner valves
Max Working Pressure7.8 bar
Compatible SystemsSealed and open vented — gas, oil, electric, heat pump
Fixings SuppliedYes — wall brackets, screws, plugs, air vent, blanking plug
Which radiator valves do I need?

Valves are not included and must be purchased separately. For this gloss white radiator, we recommend White TRV valves for a seamless match. Select your pipework type below.

Angled White Radiator Valves

When to use: Pipework rises vertically from the floor to the side connections. The most common UK installation type.

Straight White Radiator Valves

When to use: Pipework rises from the floor and connects directly to the bottom tappings in a straight vertical line.

Corner White Radiator Valves

When to use: Pipework comes horizontally out of the wall and connects to the side connections of the radiator.

Frequently Asked Questions — Kartell K-Rad Aspen Vertical Radiator 1800 x 420mm Double White
The pipe centres are 420mm, with a wall to pipe centres measurement of 60mm. Always check your existing pipe positions before ordering.
Yes — the Aspen range carries a 5 year manufacturer guarantee from Kartell UK, covering all manufacturing defects from the date of purchase.
Valves are not included. For this gloss white radiator we recommend matching White TRV valves. Choose Angled (most common — pipe from floor to side), Straight (pipe directly up), or Corner (pipe from wall). See the Valves tab for direct links.
This radiator projects 79mm from the wall. This is the double panel depth — slightly more than the 55mm single panel but the extra heat output is significant.
The double panel delivers nearly twice the heat of the same-size single panel from exactly the same wall width. The only trade-off is the slightly greater depth (79mm vs 55mm). Use the BTU Calculator to confirm your room requirement.

Looking for a radiator close to this size? The Kartell K-Rad Aspen Vertical Radiator 1800 x 420mm Double White (SKU: ASP18-43VDW) is the closest match on the market to the following searches: 1800 x 400mm double white vertical radiator, 1800 x 410mm double panel white radiator, 1800 x 420mm double white designer vertical radiator UK, 1800 x 430mm double white radiator, 1800 x 440mm double panel white radiator, 1800 x 450mm double white vertical radiator, 1800 x 460mm double panel white radiator, 1750 x 420mm double white vertical radiator, 1850 x 420mm double white vertical radiator, 1800mm double panel white radiator 420mm, Kartell Aspen 1800 420 double white, ASP18-43VDW. Also found via: double panel white vertical radiator 1800mm hallway, 6597 BTU white vertical radiator.

Delivery Information
Free DeliveryFree express delivery on all orders over £500 to UK mainland addresses
Standard DeliveryCharged on orders under £500 — calculated at checkout
Delivery AreaUK mainland only. We do not deliver to Northern Ireland, Scottish Highlands, Channel Islands or overseas
Lead TimeMaximum 14 working days from order placement. Call 01282 429061 to confirm availability
Despatch ConfirmationYou will receive an email when your order is despatched
Delivery AddressWe deliver to your registered billing address only
Finance OptionsSpread the cost with Klarna or Clearpay — available at checkout
Returns Policy
Returns Window14 days from receipt of goods
How to ReturnRequest a returns number in writing before sending items back. Call 01282 429061 or email us
Return PostageCost of returning goods is borne by the customer. Original delivery charges are non-refundable
Restocking ChargeA 25% restocking charge may apply to non-faulty returns
Condition of ReturnItems must be unused and in original, unopened packaging
RefundUpon receipt and inspection we will issue a full refund, exchange or credit
Faulty ItemsSent to manufacturer for testing. If confirmed faulty, 100% of the original product value will be credited
GuaranteeThis radiator carries a 5 year Kartell UK manufacturer guarantee against manufacturing defects
Need help with your order?
Call 01282 429061 Monday to Friday or visit our full Terms & Conditions.