The K Rad Kompact combines two panels with a single convector fitted between them. The convector increases the surface area available to transfer warmth into your room, providing more heat than a comparable panel-only design.
Measuring 900mm high and 400mm wide, this model makes use of vertical wall space where a wider radiator may be difficult to accommodate. When selecting panel radiators, check the rated output against your room’s heating requirements.
Neat Finish With Covered Internals
Factory-fitted side panels and a top grille conceal the internal fins while allowing warm air to circulate. They give the radiator a clean, finished appearance without leaving the convector exposed.
If you’re comparing double panel plus radiators - type 21 (one internal convector), the Kompact offers a practical combination of double-panel heating and a single row of convector fins.
Mounting Kit and Standard Connections
The supplied L-shaped brackets attach directly to the wall, with holders on the radiator’s back allowing it to hang securely in place. An air vent, blanking plugs, screws, and screw caps are included to help complete installation.
Standard G½-inch connection threads accommodate suitable radiator valves, while BS EN 442 conformity and a 10-year manufacturing warranty provide added reassurance.
Complete Your Room With K Rad
Add the K Rad Kompact Type 21 900 x 400mm radiator to your basket today for practical warmth in a tall, narrow design from our range of radiators.
Specifications
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Technical
K Rad Kompact Type 21 900 x 400mm Radiator - Double Panel Single Convector – Technical Specifications
Brilliant service from Plumbworld and quality product as usual.
5/ 5
Alan
rated another option
5/5
★★★★★
Replaced a previous leaking radiator of a similar size so a straight forward job. no issues.
5/ 5
Glen jarvis
rated another option
5/5
★★★★★
Great value and superb service all round. Will use again.
5/ 5
Paul Heal
rated another option
5/5
★★★★★
I needed to replace all my radiators as they were over 35 years old. These look better and seem to heat up quicker. Great buy.
5/ 5
Linda
rated another option
5/5
★★★★★
Placed my order and the item was delivered earlier than stated. Was delighted with the service
5/ 5
L Shields
rated another option
5/5
★★★★★
Plumbworld wass quick to communicate and send order.
Product was great quality and very good value.
5/ 5
Bill Mann
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5/5
★★★★★
Excellent product, well packed and delivered on time.
5/ 5
D.Germaney
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5/5
★★★★★
A Really good radiator,from a really good supplier.
5/ 5
Mark Sheppard
rated another option
5/5
★★★★★
Bought this Rad to replace an old single panel Rad.
Finish’s off a newly decorated hallway nicely and giving off a lot of heat - which is probably overkill seeing as it is the same length as the old one.
Only problem I faced was not ensuring the tails were super tight before fitting to the wall - one end started to loosen as I tightened the pipework to it (tightening in the opposite direction) - user error!
5/ 5
Allan Biggs
rated another option
5/5
★★★★★
I went for this brand as it had a higher heat output than the Screwfix/Toolstation/B&Q equivalent. It is well made with a good finish. All the normal fittings included. I would buy again.
