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The DQ Martha Vertical Radiator 810mm - 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 810mm tall and comes in 8 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
810 x 261mm
1,576 BTU
462 W
12m²
CR/MAR/810/3-F
810 x 338mm
2,101 BTU
616 W
16m²
CR/MAR/810/4-F
810 x 415mm
2,627 BTU
770 W
19m²
CR/MAR/810/5-F
810 x 492mm
3,152 BTU
924 W
23m²
CR/MAR/810/6-F
810 x 569mm
3,678 BTU
1,078 W
27m²
CR/MAR/810/7-F
810 x 646mm
4,203 BTU
1,232 W
31m²
CR/MAR/810/8-F
810 x 723mm
4,729 BTU
1,386 W
35m²
CR/MAR/810/9-F
810 x 800mm
5,254 BTU
1,540 W
39m²
CR/MAR/810/10-F
Specification
Range: Martha
Height: 810mm
Finish: RAL Colour / DQ Finish
Material: Cast Iron
Orientation: Vertical
Columns: 3
Connections: 1/2" BOE
Fixings: N/A included
Available in 8 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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