Kartell K-Rad Type 22 Double Panel Double Convector Radiator 300mm x 800mm
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Description
The Kartell K-Rad Kompact D308K is a Type 22 double panel, double convector radiator, 300 × 800 mm, giving 839 W (2864 BTU/h) at ΔT50. Two panels, each backed by its own bank of convector fins, fill a 105 mm case: 839 W against 366 W for a Type 11 the same size. Nett weight is 13.92 kg and it holds 2.56 litres of system water.
Applications & suitability
Key specifications
| Brand | Kartell |
| Model | K-Rad Kompact D308K |
| Radiator type | Type 22 — double panel, double convector |
| Heat output | |
| Output at ΔT50 | 839 W (2864 BTU/h) |
| Output at ΔT60 | 1075 W (3669 BTU/h) |
| Size and weight | |
| Dimensions (H × W × D) | 300 × 800 × 105 mm |
| Centre distance | 245 mm |
| Wall to centre | 82.5 or 97.5 mm |
| Weight | 13.92 kg |
| Water content | 2.56 l |
| Build and rating | |
| Max working pressure | 10 bar |
| Max working temperature | 120 °C |
| Finish | White enamel, RAL 9016 |
| Standard | EN 442 |
| Warranty | 10 years |
Installation & compatibility
Fix no lower than 100 mm from the finished floor. Allow 35 mm from the wall to pipe centre for a manual valve, or 45 mm for a TRV. Kartell requires the system to be cleansed and dosed with inhibitor to BS 7593:2019 — skipping it invalidates the guarantee, which covers product replacement only. Leave the protective packaging on until the radiator is fixed and the tappings are cut.
Related & next steps
Shipping Information
At GetPlumb, we strive to provide reliable and cost-effective delivery options to our customers. Please review our shipping policy below.
🆓 Free Local Delivery (Orders £100 & above)
We offer FREE delivery on orders £100 or more
for selected local areas.
Eligible Postcodes Include:
- RG*
- SL*
- OX10*, OX11*, OX49*
- HP1*, HP3*, HP8*, HP9*, HP10*, HP11*, HP12*, HP13*, HP14*
- WD*, HA*, UB*, TW*, KT*
- W1* – W9*
- NW*, SW*
Delivery Time: 2–4 working days
Shipping Cost: £0.00
📦 Standard Shipping (Weight-Based Rates)
For orders that do not qualify for free delivery, standard
shipping rates apply based on total cart weight.
- For cart weight between 0–2 kg, the shipping cost is £4.50 with a delivery time of 2–4 working days.
- For cart weight between 2–24 kg, the shipping cost is £9.99 with a delivery time of 2–4 working days.
- For cart weight between 24 kg and above, the shipping cost is £60 with a delivery time of 2–4 working days.
🧱 Block Salt (Harvey’s) – Unit-Based Shipping
This rate applies only to Harvey’s block salt products.
- £7.99 is charged for every 3 items.
- The charge increases by £7.99 for each additional set of 3 items.
Examples:
- 1–3 items → £7.99
- 4–6 items → £15.98
- 7–9 items → £23.97
Delivery Time: 2–4 working days
📏 Large / Long Items (Length-Based Shipping)
For oversized items where the product length is 1.5 metres or more:
Conditions:
- Product length ≥ 1.5 m
- Cart weight ≤ 40 kg
Shipping Cost: £18.00 (flat rate)
Delivery Time: 2–4 working days
Collection from Store
Customers can also choose to collect their order from our store in
Reading, UK, at no additional charge. For any questions regarding shipping, please contact our support team at online@getplumb.co.uk.
