A vertical black ladder rail at 800x500mm, the Lumaoval uses 22mm round tube — the classic towel rail shape, and the easiest to hang a bath sheet over. Output is 1,450 BTU (425W) at ΔT50, the rating UK merchants normally quote.
Plumbing is standard: 1/2" inlets and outlets, plus a pair of 15mm valves.
Specification
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Size: 800x500mm
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BTU: ~1300–1450
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Watt Output: ~380–425W
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Vertical wall-mounted installation
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Round tube design (22mm diameter)
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Made from low-carbon steel for durability
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Sleek matt black finish
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Compatible with UK central heating systems
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EN442, ISO, CE & UKCA certified
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1/2" BSP UK standard thread
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5-year manufacturer warranty
Frequently asked questions
Will it fit a narrow wall?
Yes — 500mm is narrow enough for most awkward walls. The height is where it takes its space: 800mm, so check you have headroom above the skirting and below any shelf or cabinet.
Why are two BTU figures quoted?
Heat output depends on how hot the water is. At ΔT50 this rail gives 1,450 BTU; drop the flow temperature, as a heat pump does, and it falls to about 1,300 BTU. Most UK merchants quote the ΔT50 number.
How does it compare with the other Lumaoval sizes?
The Lumaoval range runs from 800x400mm at 1,200 BTU to 1600x600mm at 2,700 BTU, in 25 sizes. This one is 800x500mm and 1,450 BTU, so there is a smaller and a larger option either side of it.
What valves do I need?
Valves are separate. Angled where your pipes come out of the wall, straight where they come up from the floor. The connections are 1/2" BSP and take a standard pair of 15mm valves — in black if you want them to disappear against the rail.
- Type: Heated Towel Rail
- Width: 500mm
- Height: 800mm
- Panels: Single Panel
- Heat output: Medium (1201–1700 BTU)
- Connection position: Side
- Valve style: Angled or Straight
Help choosing
A towel rail should keep the bathroom warm, not just dry towels. Check it's powerful enough for the room.
Enter your room size to see the heat output you need.
- Match the output to the room. Use the BTU figure from the calculator. In a bathroom, a towel rail alone often heats a small room; bigger rooms may need a radiator too.
- Check your connections. Measure the gap between your pipes and choose valves to suit: angled, straight or corner (see the valve helper on our valve pages).
- Heat pump? At the lower water temperatures heat pumps run at, expect roughly half the listed output.
- Summer use. Central heating rails only warm up when the heating is on. A dual fuel kit adds an electric element where the rail supports it.
Still not sure? Send us your measurements and we'll check for you.
Questions people ask
What does BTU mean?
Which valves do I need?
Can I use it in summer?
What size rail do I need?
Will it match my brushed brass taps?
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