200mm or 250mm Towel Radiator: Which Fits Your Space?

Quick answer: A 250mm towel radiator is 50mm wider than a 200mm model. In our ranges their pipe centres are 200mm and 150mm respectively. Choose from the complete fitted dimensions and exact model output, then compare chrome and black finishes; neither width is automatically suitable for a particular bathroom.

Published 4 November 2026

The difference is small on paper, important on the wall

Fifty millimetres can be the difference between a comfortable installation and a valve squeezed against a vanity unit. Measure the narrowest usable part of the proposed space, including any skirting or pipe boxing. Check at the height of the radiator and at the valve positions rather than relying on one measurement near the ceiling.

This comparison supports our narrow towel radiator buying guide. It is for customers choosing between two widths, not a claim that every 200mm or 250mm rail has the same height, output or connection design.

Compare the two widths

The centres shown apply to our towel radiator ranges. Confirm the individual product specification before ordering. They describe the radiator’s connection spacing; the assembled valves and existing pipe route can change the overall fit.

200mm or 250mm for a cloakroom?

For a cloakroom, begin with the usable wall next to the basin or toilet and the space taken by the opening door. A narrow towel radiator can preserve more wall width, but check whether a hanging towel will intrude into the handwashing area. Choose from the actual layout rather than a standard “cloakroom size”.

When might 200mm be the more practical shortlist?

A 200mm body can be worth investigating where wall width is particularly limited, provided there is enough room for the complete installation. Check that the towel hanging from the rail will not occupy a doorway or crowd the edge of a shower screen. The metal body is only part of the space used in daily life.

Think about the hanging gaps and the size of your own towels. Do not assume that a very narrow rail will hold a bath towel flat or dry a stated number of towels. Folding and the particular tube layout affect how you will use it.

When is the extra 50mm worth considering?

If both widths fit with suitable access, compare the available heights, tube layout and model outputs. A 250mm body gives a different horizontal proportion, but the extra width is not a fixed percentage increase in heat output. Read the figures for the actual products you are comparing.

Mark both outlines on the wall. Open adjacent drawers and check the route to the toilet, basin and shower. This simple exercise can show whether the slightly wider option is convenient rather than merely possible.

Check heat output before choosing a height

A tall 200mm rail and a shorter 250mm rail solve different space problems. Ask your installer to check the required room output and compare both exact models at the same rating conditions. If the rail will supplement underfloor heating, make that clear; if it is the only emitter, that matters too.

On a lower-temperature system, use output at the intended operating conditions. Energy Saving Trust explains that radiator upgrades may be needed for heat pumps. Our narrow-radiator heat-output guide explains the buying checks without assigning a bathroom size to either width.

Compare chrome and black on equal terms

Choose the same width and a suitable height in each finish before comparing appearance. Chrome may complement existing polished fittings; black may match a dark shower frame. Check the selected finish’s listed output and specification rather than copying figures from another version.

Valves are separate from a radiator-only purchase. Confirm the pipe route, valve arrangement and the space needed to operate the controls before matching the accessory finish. Our tight-space replacement guide is useful if existing pipework is involved.

Your final decision

Choose the width that fits the complete installation, a height you can use comfortably and an output appropriate to the room. If neither shortlist meets all three, widen the search instead of forcing the closest-looking option. The small and narrow towel radiators collection is a starting point, not a substitute for checking the selected product.

Sources and product checks

• Energy Saving Trust: air source heat pumps

Sources support the general heating and safety points linked above. Dimensions, supplied fittings and range examples refer to Cheap Radiator’s listings. Check the selected product and ask your installer to confirm suitability.