Kartell K-Rad Type 21 Double Panel Single Convector Radiator 750mm x 700mm
Need Help Choosing the Right Radiator?
Calculate the correct BTU output for your room in under a minute.
Calculate Your BTU →Free Local Shipping
Free Local Shipping on orders over £100. Standard delivery to most UK postcodes within 2-3 working days. Express options available at checkout.
Contact Us
Give Us A Call +44 118 958 8882 Our team is here to help. We will provide expert advice on specifications, compatibility, and delivery options.
30-day Easy Return
30 days Easy Return — no questions asked. If you're not completely satisfied, send it back within 14 days for a full refund.
The Kartell K-Rad Kompact P707K is a Type 21 double panel, single convector radiator, 750 × 700 mm, giving 1137 W (3879 BTU/h) at ΔT50. Two water-carrying panels with a single bank of convector fins sit in a 70 mm case — the middle rung of the Kompact range, between the 56 mm Type 11 and the 105 mm Type 22. Nett weight is 25.55 kg and it holds 4.69 litres of system water.
Applications & suitability
Key specifications
| Brand | Kartell |
| Model | K-Rad Kompact P707K |
| Radiator type | Type 21 — double panel, single convector |
| Heat output | |
| Output at ΔT50 | 1137 W (3879 BTU/h) |
| Output at ΔT60 | 1456 W (4969 BTU/h) |
| Size and weight | |
| Dimensions (H × W × D) | 750 × 700 × 70 mm |
| Centre distance | 695 mm |
| Wall to centre | 65 or 80 mm |
| Weight | 25.55 kg |
| Water content | 4.69 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
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.
