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Reina Designer Flat Horizontal Steel Radiator
£99.20
£119.20
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Central heating, electric or dual fuel. Mild steel. Minimalist flat panels. Single or double.
Product Overview & Key Specs
The Reina Flat Horizontal is a mild steel designer radiator with a minimalist flat panel design, 600mm high in widths from 440mm to 1402mm. Choose a single or double panel in White or Anthracite - six widths in each, with a 5-year manufacturer guarantee.
600mm
Height
440–1402mm
Widths
1–2
Panels
2
Finishes
5 yr
Guarantee
Why Choose the Flat Horizontal?
Three practical reasons this mild steel designer radiator suits a modern central heating system.
Minimalist flat panelsClean lines ✔
Flat, closely spaced panels run the full height of the radiator, giving a clean, understated look that suits living rooms, kitchens and hallways.
Single or double panelFlexible output ✔
Pick a single panel for a slimmer profile, or a double panel for a higher heat output from the same width.
Mild steel build5-year guarantee ✔
Made from robust mild steel with a factory finish, and backed by a 5-year manufacturer guarantee.
In the Room
The Flat Horizontal shown in a room setting, with a close-up of the flat panel finish.
Choose Your Finish
White or Anthracite, as a single or double panel - the same mild steel body and the same heat output in both finishes.
WhiteSingle panel
AnthraciteSingle panel
WhiteDouble panel
AnthraciteDouble panel
Heat Output by Size & System
ΔT60 = high-temp boilers (80°C flow). ΔT50 = standard gas boiler (75/65°C). ΔT30 = heat pump (50/40°C). White and Anthracite have identical outputs.
| Height x width | Panel | ΔT60 BTU High-temp |
ΔT50 BTU Gas boiler |
ΔT30 BTU Heat pump |
Watts ΔT50 |
Watts ΔT30 |
|---|---|---|---|---|---|---|
| 600 x 440mm | Single | 1,347 | 1,063 | 550 | 312 | 161 |
| 600 x 588mm | Single | 1,797 | 1,418 | 734 | 416 | 215 |
| 600 x 810mm | Single | 2,470 | 1,949 | 1,009 | 572 | 296 |
| 600 x 1032mm | Single | 3,143 | 2,480 | 1,284 | 727 | 377 |
| 600 x 1254mm | Single | 3,819 | 3,013 | 1,559 | 883 | 457 |
| 600 x 1402mm | Single | 4,266 | 3,366 | 1,743 | 987 | 511 |
| 600 x 440mm | Double | 1,953 | 1,541 | 798 | 452 | 234 |
| 600 x 588mm | Double | 2,605 | 2,055 | 1,064 | 603 | 312 |
| 600 x 810mm | Double | 3,582 | 2,826 | 1,463 | 829 | 429 |
| 600 x 1032mm | Double | 4,559 | 3,597 | 1,862 | 1,055 | 546 |
| 600 x 1254mm | Double | 5,538 | 4,369 | 2,262 | 1,281 | 663 |
| 600 x 1402mm | Double | 6,350 | 5,010 | 2,594 | 1,469 | 761 |
Heat pump owners: use the ΔT30 column. Mild steel warms up more slowly than aluminium, so allow a little longer to reach temperature.
Technical Specifications & Dimensions
Fit-check before you buy
| Model | Reina Flat Horizontal |
| Height | 600mm |
| Width options | 440 / 588 / 810 / 1032 / 1254 / 1402mm |
| Panels | Single or double |
| Tubes | Single 6–19 (by width) Double 12–38 (by width) |
| Pipe centres | Matches width (440mm to 1402mm) |
| Wall to pipe centres | Single 39mm / Double 64mm |
| Wall distance | Single 68mm / Double 93mm |
| Connection | 1/2" female pipe thread |
| Material | Mild steel |
| Finishes | White / Anthracite |
| Fuel type | Central heating / electric / dual fuel |
| Included | Wall brackets and fixings |
| Not included | Radiator valves |
| Max working pressure | 6 bar |
| Max water temperature | 95°C |
| Heat pump | ΔT30 outputs published - see table |
| Guarantee | 5 years (Reina manufacturer) |
440–1402mm
Width range · 600mm high
PanelsSingle / Double
Finishes2
✓
ΔT30 outputs published
Heat pump sizing
✓
TRV compatible
Part L compliant · zone control
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Will This Radiator Heat My Room?
Enter your room dimensions and select your heating system. The calculator checks all twelve single and double panel widths.
Frequently Asked Questions
Q.
Is the Reina Flat Horizontal compatible with a heat pump?
A. Reina publish Delta T30 outputs for every Flat Horizontal size, so it can be sized for a low-temperature system - use the Delta T30 column in our heat output table. Mild steel warms up more slowly than aluminium, so allow a little longer to reach temperature.
Q.
Single or double panel - which should I choose?
A. A double panel gives a higher heat output for the same width: for example the 600 x 810mm gives 1,949 BTU as a single and 2,826 BTU as a double at Delta T50. A single panel sits closer to the wall (68mm wall distance against 93mm for the double).
Q.
What valves do I need for the Flat Horizontal?
A. Valves are not supplied. The Flat Horizontal has 1/2 inch female pipe thread inlet and outlet connections, and we recommend thermostatic radiator valves (TRVs) for individual room control.
Q.
What are the pipe centres and wall distances on the Flat Horizontal?
A. Pipe centres match the overall width, from 440mm up to 1402mm. Wall to pipe centres is 39mm on the single panel and 64mm on the double, and the radiator projects 68mm (single) or 93mm (double) from the wall.
Q.
Which size Flat Horizontal do I need?
A. Use the room fit calculator on this page. Enter your room dimensions and heating system type - the calculator shows whether the radiator will meet your heat loss. As a guide, allow around 100 BTU per cubic metre for a modern well-insulated UK room.
Q.
What sizes and finishes does the Flat Horizontal come in?
A. One height, 600mm, in six widths from 440mm to 1402mm, each as a single or double panel in White or Anthracite. Both finishes have the same heat output.
Q.
Can the Flat Horizontal be used as an electric or dual fuel radiator?
A. Yes - Reina list every Flat Horizontal size for central heating, electric and dual fuel use. For an electric or dual fuel set-up, contact our team and we will confirm the correct electric element kit for your size.
Q.
What is the guarantee and maximum working pressure?
A. The Flat Horizontal carries a 5-year manufacturer guarantee. The installation guide gives a maximum operational pressure of 6 bar, and we recommend a maximum water temperature of 95 degrees C.
Guarantee
Manufacturer backed
UK Company
Since 2012 · Coventry
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£99.20
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