Radiator Buying Guide: How to Find the Right Model for Your Home
Radiators differ a lot in design, output, and looks – from classic panel radiators for living rooms to portable electric heaters for the in-between seasons. In comparison, you'll find both components for central heating systems and standalone electric heaters, with big differences in material and features in between. This guide shows you which types are available, what to look out for regarding connections and output, and which mistakes people commonly make when buying.
Which types are there?
Panel Radiators
This type consists of one to three stacked heating panels with convector fins in between and is the most common form found in living spaces. It can be mounted flat against the wall and releases heat through both radiation and convection.
Suitable for standard living spaces with an existing heating connection.
Column and Designer Radiators
Instead of panels, these use vertical or horizontal tubes, often in eye-catching shapes or colors. They tend to be a bit pricier, since design and finish are more of a focus here.
For anyone who cares about the look of the radiator in their living space.
Towel Radiators
These models combine room heating with rails for hanging towels and are usually narrower and taller in design. Many versions can also be run electrically, independent of the central heating system.
For bathrooms where you want to combine heating with towel drying.
Convector Heaters
Convectors heat the room air almost entirely through air circulation via a finned tube inside the housing, with very little radiant heat. They're usually lower and slimmer than classic panel radiators.
For rooms with limited wall space or beneath floor-to-ceiling windows.
Portable Electric Heaters
These devices don't need a connection to a central heating system – you simply plug them into a wall outlet. They're suited for spot heating, not as a permanent replacement for a heating system.
For short-term needs, transitional seasons, or rooms without a heating connection.
What matters
Heat Output in Watts
The output needs to match the room size, ceiling height, and insulation, otherwise the room won't get warm enough or you'll waste energy unnecessarily. A rough heat load calculation beforehand helps you pick the right wattage instead of just guessing.
Connection Type
Radiators for central heating systems differ in whether the valve connection is at the bottom or on the side, as well as in the spacing between connections. If the connection type doesn't match your existing setup, replacing it becomes much more complicated and expensive.
Height and Depth
It's worth precisely measuring the existing niche or wall space before buying, since radiators come in very different heights and depths. Models that are too deep can stick out past windowsills or get in the way of furniture placed in front of them.
Material and Corrosion Protection
Steel is the standard for radiators used with central heating, while bathroom and designer models are often additionally coated or made from aluminum. A good coating protects against rust, especially in damp rooms like bathrooms.
Thermostat Compatibility
Not every thermostat head fits every valve, especially with electronic or smart thermostats. Check before buying whether your existing thermostats can still be used or whether you'll need an adapter.
Look and Finish
Besides pure function, the surface finish matters for visible radiators, ranging from simple white powder coating to custom colors. More elaborate finishes and special colors typically push the price up.
What does good equipment cost?
Across the 276 space heaters listed here, prices swing widely, starting at just €26.32 for the cheapest single offer and stretching up to €2,150.21 for the priciest one you'll find in this comparison. Most listings, however, sit much closer to the middle: half of all offers fall between €56.62 and €157.13, with €92.24 marking the midpoint of the whole comparison. That single top-end offer at €2,150.21 is very much an outlier and shouldn't be taken as a typical price level. As you move up through that middle band, you'll generally find sturdier build quality, more heating modes, and extra features like timers or remote controls, though this pattern comes from the offers themselves rather than any one brand among those compared, including Wallair, Siku, sygonix, EBM Papst, Bosch Home Comfort, PILZ, Protector, and Schabus. If you're after the best value, focusing on that middle stretch of prices is a sensible starting point for comparing what's on offer.
Prices as of 2026-08-07
Practical tips
- Measure the connection dimensions of your old radiator precisely before buying to avoid having to redo the pipework.
- Calculate the heat output you need based on room size, insulation standard, and window area, instead of just going with a gut feeling.
- With designer and column radiators, check whether the heat output is still sufficient for the room despite the eye-catching shape.
- With portable electric heaters, check the outlet's power capacity beforehand, especially for devices with high wattage.
- With dual-function towel radiators, check whether electric operation comes standard or only with an additional kit.
- When installing, leave enough clearance from the wall and floor so air circulation isn't blocked.
Frequently asked questions
What's the difference between column and panel radiators?
Panel radiators consist of flat sheets and tend to be more plain, while column radiators are built from individual tubes and often serve as a design feature. Both connect to the same central heating systems, but they differ in looks and price.
How do I find the right heat output for my room?
As a rough guide, room size combined with ceiling height, insulation standard, and window area gives you an approximate heat load. If you're unsure, a more precise calculation by a professional helps, especially in older buildings.
Can I replace a radiator myself?
A straightforward swap with an identical connection type is often doable if you're handy, but it requires knowledge of working with the heating system and bleeding it afterward. If the connection dimensions differ or you're unsure, hiring a professional is the safer choice.
Why are some towel radiators more expensive than regular radiators?
Extra features like electric switch-on capability, special shaping for towels, and more elaborate finishes drive up the price. The higher corrosion resistance needed in bathrooms also plays a role.
Created with AI. Prices come from our live comparison data. · 2026-08-07