An 800, 900 or 1000 mm wide × 600 mm high rail can suit a low, wide wall below a bathroom window. Start with the clear space from the finished floor to the underside of the sill. The 600 mm figure is the height of the radiator body.
Compare the three sizes
- 800 × 600 mm chrome towel radiator · 750 mm pipe centres
- 900 × 600 mm chrome towel radiator · 850 mm pipe centres
- 1000 × 600 mm chrome towel radiator · Check the listed pipe centres and current availability on the product page.
Measure the space the installed rail will occupy
Measure at both ends of the sill and note the lowest point. Allow for the installer’s recommended floor clearance, the valves and connections, and enough space at the top to hang towels. Check a projecting sill, window handles and any blind or shutter for interference.
Check width and pipe alignment separately
Measure between the nearest obstructions, including a vanity, door frame or boxed-in pipework. Then measure from the centre of one pipe to the centre of the other and compare that with the model drawing. If the pipes need moving, get a quote before ordering.
Frequently asked question
Will a 600 mm high rail fit below a sill 650 mm from the floor?
There is only 50 mm beyond the radiator body in this example. Check the exact valve arrangement, manufacturer guidance and installation clearances with your installer before choosing.
For the full checklist, see our guide to choosing a wide heated towel rail for a large family bathroom. Browse wide towel radiators to compare sizes.