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The DQ Martha Horizontal Radiator 760mm - RAL Colour / DQ Finish balances output and proportion - a designer radiator that still does the hard work of heating the room properly.
Widths and heat output
This radiator is 760mm tall and comes in 31 widths. Outputs are quoted at ΔT50; room coverage assumes average insulation, so if you are between sizes go up rather than down. Ask us if you would like a hand sizing it.
Size (H x W)
Heat output
Watts
Suits a room of about
Product code
760 x 800mm
4,435 BTU
1,300 W
33m²
CR/MAR/760/10-F
760 x 877mm
4,879 BTU
1,430 W
36m²
CR/MAR/760/11-F
760 x 954mm
5,322 BTU
1,560 W
39m²
CR/MAR/760/12-F
760 x 1031mm
5,766 BTU
1,690 W
43m²
CR/MAR/760/13-F
760 x 1108mm
6,210 BTU
1,820 W
46m²
CR/MAR/760/14-F
760 x 1185mm
6,653 BTU
1,950 W
49m²
CR/MAR/760/15-F
760 x 1262mm
7,097 BTU
2,080 W
53m²
CR/MAR/760/16-F
760 x 1339mm
7,540 BTU
2,210 W
56m²
CR/MAR/760/17-F
760 x 1416mm
7,984 BTU
2,340 W
59m²
CR/MAR/760/18-F
760 x 1493mm
8,427 BTU
2,470 W
62m²
CR/MAR/760/19-F
760 x 1570mm
8,871 BTU
2,600 W
66m²
CR/MAR/760/20-F
760 x 1647mm
9,315 BTU
2,730 W
69m²
CR/MAR/760/21-F
760 x 1724mm
9,758 BTU
2,860 W
72m²
CR/MAR/760/22-F
760 x 1801mm
10,202 BTU
2,990 W
76m²
CR/MAR/760/23-F
760 x 1878mm
10,645 BTU
3,120 W
79m²
CR/MAR/760/24-F
760 x 1955mm
11,089 BTU
3,250 W
82m²
CR/MAR/760/25-F
760 x 2032mm
11,533 BTU
3,380 W
85m²
CR/MAR/760/26-F
760 x 2109mm
11,976 BTU
3,510 W
89m²
CR/MAR/760/27-F
760 x 2186mm
12,420 BTU
3,640 W
92m²
CR/MAR/760/28-F
760 x 2263mm
12,863 BTU
3,770 W
95m²
CR/MAR/760/29-F
760 x 2340mm
13,307 BTU
3,900 W
99m²
CR/MAR/760/30-F
760 x 2417mm
13,750 BTU
4,030 W
102m²
CR/MAR/760/31-F
760 x 2494mm
14,194 BTU
4,160 W
105m²
CR/MAR/760/32-F
760 x 2571mm
14,638 BTU
4,290 W
108m²
CR/MAR/760/33-F
760 x 2648mm
15,081 BTU
4,420 W
112m²
CR/MAR/760/34-F
760 x 2725mm
15,525 BTU
4,550 W
115m²
CR/MAR/760/35-F
760 x 2802mm
15,968 BTU
4,680 W
118m²
CR/MAR/760/36-F
760 x 2879mm
16,412 BTU
4,810 W
122m²
CR/MAR/760/37-F
760 x 2956mm
16,855 BTU
4,940 W
125m²
CR/MAR/760/38-F
760 x 3033mm
17,299 BTU
5,070 W
128m²
CR/MAR/760/39-F
760 x 3110mm
17,743 BTU
5,200 W
131m²
CR/MAR/760/40-F
Specification
Range: Martha
Height: 760mm
Finish: RAL Colour / DQ Finish
Material: Cast Iron
Orientation: Horizontal
Columns: 1
Connections: 1/2" BOE
Fixings: N/A included
Available in 31 widths at this height
Finishes and colours
DQ powder coat in-house at their own Norfolk facility, so this range is available across an extensive RAL colour range and DQ's speciality finishes. If you cannot see the colour you want, get in touch and we will price it for you.
Made to order
This radiator is built for you at DQ's Norfolk works, so allow 3-4 weeks from order to delivery. It is not a stocked item and cannot be supplied faster. If you are working to a deadline, talk to us before ordering and we will confirm the current lead time with the factory.
Guarantee
Covered by a 10-year DQ manufacturer guarantee. DQ have been building heating products in Britain for over 25 years and are family owned and run.
Why buy from British Bathroom Company?
Free UK delivery on orders over £100
Genuine DQ Heating product, made in Norfolk
Real bathroom and heating specialists on the end of the phone
Family-run business, same as DQ
Contact us for advice, a bespoke finish or a trade quote.
Code:
DELIVERY
We aim to deliver all orders within 3-7 working days, dependant on the size of your order or item(s)
Express delivery is available on some items, feel free to contact ourselves to check if your desired product is available for express delivery
Small parcels will be delivered via DX and tracking is provided once dispatched
Large items are delivered via Stop Start or Palletways, details of delivery are provided via email and tracking is also available. Please note most large deliveries are KERB SIDE ONLYalthough some companies will aim to get the goods as close to the door as possible.
Returns are accepted within 28 days of receipt of your goods, however, you must request your return within the first 14 days. You can activate a return request in your account, for more details please visit the "Delivery & Returns" page
Christmas Period Any orders placed from 15th December 2025 maybe delayed until the week commencing 5th January 2026. If you need your order sooner, please contact us before purchase to see when your delivery can take place.
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