Short answer: for most living rooms and bedrooms a type 22 panel radiator (two panels, two convectors) is the best choice: plenty of heat in little space. Choose the height that fits under the windowsill (usually 500 or 600 mm), and the length based on the output the room needs. Planning a heat pump later? Then choose one size larger or type 33. A Radson Compact type 22 measuring 600 × 1000 mm costs € 240.95 including VAT at Instalpunt.
The right radiator in four steps
| Step | What you decide | How |
|---|---|---|
| 1. Output | How many watts the room needs | Rule of thumb per m² or m³, see calculating output |
| 2. Type | Number of panels and convectors (11, 21, 22, 33) | More panels = more heat at the same size, but deeper. See type 11, 22 or 33 |
| 3. Height | Does the radiator fit under the windowsill? | Measure from floor to windowsill, leave 10 cm clear below and 10 cm above |
| 4. Length and connection | Width of the wall and where the pipes are | Side connection (pipes at the side) or middle connection (pipes at the bottom in the centre). See replacing a radiator |
Popular sizes and prices
| Radson Compact HP | Size (h × l) | Price incl. VAT |
|---|---|---|
| Type 22 | 600 × 1000 mm | € 240.95 |
| Type 22 | 600 × 1200 mm | € 271.95 |
| Type 22 | 600 × 800 mm | € 194.95 |
| Type 22 | 500 × 1000 mm | € 199.95 |
| Type 33 | 600 × 1000 mm | € 364.95 |
| Type 11 | 600 × 1000 mm | € 135.95 |
View all Radson Compact sizes → · All panel radiators →
Bathroom: towel radiator
In the bathroom you usually choose a towel radiator: it heats the room and dries your towels. Allow 100 to 120 watts per m². The DRL Lisa central heating bathroom radiator comes in white and matt black, from 763 to 1807 mm high, from € 133.95. All designer and bathroom radiators →
Valves and lockshield valve
Every radiator has a radiator valve on one side and a lockshield valve on the other. With a new radiator it makes sense to replace these at the same time: a thermostatic radiator valve (€ 24.95) with thermostatic head (€ 26.95) and a lockshield valve (€ 14.95).
What should you look out for with a heat pump?
A heat pump heats with water at 35 to 50 °C instead of 60 to 80 °C. A radiator then gives off less heat, often about half. So choose a larger size or an extra panel (type 33 instead of 22). More information: does a heat pump work with ordinary radiators?
Frequently asked questions
Which radiator is best for a living room?
Usually a type 22 panel radiator: two panels and two convectors give plenty of heat at a limited size. For a large or poorly insulated room, or if you want a heat pump, type 33 or a longer radiator is better.
What does a new radiator cost?
At Instalpunt a Radson Compact type 22 measuring 600 x 1000 mm costs € 240.95 including VAT. Type 11 radiators cost 84 to 136 euros, type 33 radiators 365 to 483 euros. A DRL Lisa central heating bathroom radiator costs 134 to 232 euros.
What is the delivery time?
Radson radiators are ordered specially for you; allow about 2 to 4 working days, plus shipping to EU countries (usually 3–5 working days).
Can I hang a radiator myself?
A handy DIYer can replace a radiator with the same size and connection, provided you can drain the system and then refill and bleed it. With a different size or connection the pipework has to be adapted; that is a job for a qualified installer.