Two Mercury 4 Column cast iron radiators in a mid grey finish on feet beneath a sash bay window, with brass valves and a parquet floor.

A plain Mercury 4 Column cast iron radiator in a grey finish on feet beneath a sash window, with brass valves and stays, on a herringbone floor.

A plain Mercury 4 column cast iron radiator in a dark grey sparkle finish on feet, with brass valves and stays, beneath a sash window.

A plain Mercury 4 Column cast iron radiator in a dark grey finish on feet beneath a window, with brass valves and wall stays on a parquet floor.

Plain Mercury 4 column cast iron radiator on feet in a metallic grey finish with brass valves, under a sash window on a parquet floor.

Two Mercury 4 Column 460mm cast iron radiators in mid grey sparkle with brass valves, on feet either side of a bay window above a parquet floor.

A plain Mercury 4 Column cast iron radiator in Bronze Gold under a wood-framed window, between oak window seats on a herringbone floor.

A low plain Mercury cast iron radiator in Bronze Gold under a leaded window, set in a yellow room with dark oak panelling and herringbone floor.

Mercury 4 Column 460mm cast iron radiator in Bronze Gold under tall sash windows, on a herringbone oak floor beside a green kitchen.

Plain Mercury 4 Column 460mm cast iron radiator in Caspian on feet, under a white desk by sash windows against navy floral wallpaper.

A plain Mercury 4 Column 460mm cast iron radiator in Caspian under a sash window, behind a white desk in a study with navy floral wallpaper.

Low Mercury 4 column cast iron radiator in Bronze Gold under a large window in a dark green panelled room, beside a rattan armchair.

Plain Mercury 4 Column cast iron radiator in Bronze Gold on feet with a valve, under a dark green window beside a rattan armchair.

Low plain Mercury 4 Column cast iron radiator in Bronze Gold under a window in a yellow hallway with dark oak beams and herringbone floor.

custom made steam radiator in Farrow & Ball Serge

Mercury 4 Column 460mm cast iron radiator in Farrow & Ball Serge under a window, with a brass valve, wall stay and a wooden chair.

Plain Mercury 4 Column cast iron radiator in Astral Grey Mid with brass valves, on feet beneath a bedroom sash window with green walls.

Low Mercury 4 Column cast iron radiator in Astral Grey Mid under a sash window, seen through a doorway into a walk-in wardrobe with wooden floor.

Castrads Mercury 4 Column 460mm cast iron radiator in Brooklyn Brownstone townhouse bay window in Astral Grey Mid.

Mercury 4 Column 460mm in Astral Grey Dark

A low plain Mercury cast iron radiator in Astral Grey Mid on feet with brass angled valves, against a tiled wall beside an upholstered bed.

Mercury 4 Column 460mm cast iron radiator in Astral Grey Mid under a leaded sash window, beside a grey armchair on a wooden floor.

Plain Mercury 4 column cast iron radiator in Astral Grey Mid on feet beneath a white window sill, with brass valves, on a wooden floor.

Mercury 4 Column 460mm cast iron radiator in Astral Grey Mid

A plain Mercury 4 Column cast iron radiator in Matt Black under a panelled sash window, beside a fireplace and patterned rug.

Plain Mercury 4 Column cast iron radiator in Matt Black on feet below a panelled wooden window bay, with brass valves on an oak floor.

A low Mercury 4 Column cast iron radiator in Matt Black under a bay window, beside a wooden chest of drawers on an oak floor.

Mercury 4 Column 460mm cast iron radiator with a Windsor Angled thermostatic valve

Two plain Mercury 4 Column cast iron radiators in Astral Grey Mid with brass valves, beneath bay windows above a parquet floor.

A low plain Mercury cast iron radiator in Astral Grey Mid on feet beneath a sash window, with brass valves, above a herringbone floor and rug.

Plain Mercury 4 column cast iron radiator in Astral Grey Mid on feet below a window, with brass wall stays and valves on a herringbone floor.

Two plain Mercury 4 Column cast iron radiators in Astral Grey Mid with brass valves, either side of a bay window above a parquet floor.

A plain Mercury 4 column cast iron radiator in Astral Grey Mid on feet beneath a sash window, with brass valves, in a green-walled bedroom.

Plain Mercury 4 column cast iron radiator in Astral Grey Mid on feet with brass valves and stays, under a window on a herringbone floor.

Two low Mercury 4 Column cast iron radiators in Astral Grey Mid with brass valves, set either side of a bay window above a parquet floor.

A low plain Mercury 4 Column cast iron radiator in Astral Grey Mid with brass valves beneath a window, seen through a doorway past wardrobes.

Low Mercury 4 Column cast iron radiator in Astral Grey Mid with a brass valve, wall-hung beneath leaded windows in a bedroom with a grey rug.

Low Mercury 4 column cast iron radiator in Astral Grey Mid on feet beneath a white sash window, with brass valves, on a wooden floor with a jute rug.

A plain Mercury 4 Column cast iron radiator in Bronze Gold under a window in a yellow hallway with dark oak panelling and herringbone floor.

A low plain Mercury 4 Column cast iron radiator in Bronze Gold on feet beneath tall sash windows, by a herringbone oak floor and green kitchen.

Plain Mercury 4 Column cast iron radiator in Astral Grey Mid on feet, with brass valves, in a white-panelled window recess above parquet flooring.

Low Mercury 4 Column cast iron radiator in Bronze Gold on feet under a leaded window, between dark oak benches in a yellow hall.

A low plain Mercury 4 Column cast iron radiator in a silver metallic finish beneath a wooden sash window, between window seats on herringbone floor.

A low Mercury 4 Column cast iron radiator in Bronze Gold beneath a window in a dark green panelled room, beside a rattan chair and yellow pouffes.

A plain Mercury 4 Column 460mm cast iron radiator in Caspian, wall-hung under a sash window behind a white desk in a blue floral study.

Plain Mercury 4 Column 460mm cast iron radiator in Matt Black on feet, with a side valve, below a wood-panelled window on a wooden floor.

A Mercury 4 Column 460mm cast iron radiator in Caspian on feet beneath a white desk by a bay window, with navy floral wallpaper and wooden floor.

Mercury 4 Column 460mm cast iron radiator in Matt Black on feet beneath a window, with oak panelling, a wooden floor and a rug.

A plain Mercury 4 Column cast iron radiator in Bronze Gold on feet under a window, with an angled valve, dark green panelling and a rattan chair.

Mercury 4 Column 460mm - 10 Section Battery Technical Drawing - SVG

Mercury 4 Column 760mm cast iron radiator installed in Park Slope, Brooklyn on a two-pipe steam system

Technical drawing: Mercury 4 Column 460mm cast iron radiator

Mercury 4 Column 460mm - Single Section Technical Drawing - SVG

Mercury 4 Column 460mm

Name: Mercury 4 Column 460mm
SKU: CI-M4C-460

Made to order

Every radiator is built to the size your room needs. Choose sections, finish and valves in the builder, or let the finder suggest a model for your space.

Build your radiator Find a radiator to fit

Mercury represents the new global standard in cast iron radiators, with curves that fall gracefully into the shadows and lines as crisp and straight as a die. Mercury 4 Column 460mm is perfect under windows, eliminating any cold draughts.

CI-M4C-460

Available sizes

Outputs in watts per radiator, at the stated temperature difference.

Length, heat output and delivery for each available section count
SKU	Sections	Length (mm)	ΔT50 (W)	ΔT30 (W)	Delivered in	Signature	Branded Paints	Bare Metal
CI-M4C-460-03	3	205	174	93	One piece	—	—	—
CI-M4C-460-04	4	263	232	124	One piece	—	—	—
CI-M4C-460-05	5	322	290	155	One piece	—	—	—
CI-M4C-460-06	6	380	348	186	One piece	—	—	—
CI-M4C-460-07	7	438	406	217	One piece	—	—	—
CI-M4C-460-08	8	496	464	248	One piece	—	—	—
CI-M4C-460-09	9	555	522	279	One piece	—	—	—
CI-M4C-460-10	10	613	580	310	One piece	—	—	—
CI-M4C-460-11	11	671	638	341	One piece	—	—	—
CI-M4C-460-12	12	730	696	372	One piece	—	—	—
CI-M4C-460-13	13	788	754	403	One piece	—	—	—
CI-M4C-460-14	14	846	812	434	One piece	—	—	—
CI-M4C-460-15	15	905	870	465	One piece	—	—	—
CI-M4C-460-16	16	963	928	496	One piece	—	—	—
CI-M4C-460-17	17	1021	986	527	2 pieces	—	—	—
CI-M4C-460-18	18	1079	1044	558	2 pieces	—	—	—
CI-M4C-460-19	19	1138	1102	589	2 pieces	—	—	—
CI-M4C-460-20	20	1196	1160	620	2 pieces	—	—	—
CI-M4C-460-21	21	1254	1218	651	2 pieces	—	—	—
CI-M4C-460-22	22	1313	1276	682	2 pieces	—	—	—
CI-M4C-460-23	23	1371	1334	713	2 pieces	—	—	—
CI-M4C-460-24	24	1429	1392	744	2 pieces	—	—	—
CI-M4C-460-25	25	1488	1449	775	2 pieces	—	—	—
CI-M4C-460-26	26	1546	1507	806	2 pieces	—	—	—
CI-M4C-460-27	27	1604	1565	837	2 pieces	—	—	—
CI-M4C-460-28	28	1662	1623	868	2 pieces	—	—	—
CI-M4C-460-29	29	1721	1681	899	2 pieces	—	—	—
CI-M4C-460-30	30	1779	1739	930	2 pieces	—	—	—
CI-M4C-460-31	31	1837	1797	961	2 pieces	—	—	—
CI-M4C-460-32	32	1896	1855	992	2 pieces	—	—	—
CI-M4C-460-33	33	1954	1913	1023	3 pieces	—	—	—
CI-M4C-460-34	34	2012	1971	1054	3 pieces	—	—	—
CI-M4C-460-35	35	2071	2029	1085	3 pieces	—	—	—
CI-M4C-460-36	36	2129	2087	1116	3 pieces	—	—	—
CI-M4C-460-37	37	2187	2145	1147	3 pieces	—	—	—
CI-M4C-460-38	38	2245	2203	1178	3 pieces	—	—	—
CI-M4C-460-39	39	2304	2261	1209	3 pieces	—	—	—
CI-M4C-460-40	40	2362	2319	1240	3 pieces	—	—	—

Branded Paints: Little Greene, Farrow & Ball, Paint & Paper Library, Mylands

Heat output

Output varies with flow temperature. The curve shows watts per section across the usual range of ΔT.

Heat output in watts per section at each temperature difference
ΔT (K)	Output per section (W)
ΔT15	13.3
ΔT20	18.9
ΔT25	24.8
ΔT30	31
ΔT35	37.4
ΔT40	44.1
ΔT45	51
ΔT50	58

Specifications

Dimensions, weights and heat outputs for this model
Ref	Attribute	Value
A	Height with legs	460mm
B	Pipe centre to floor	101.3mm
C	Max section depth	140mm
D	Interaxis distance	323mm
E	Height without legs	398mm
F	Mid section depth	140mm
G	Pipe centre to wall (Atlas bracket)	93mm
L	Section length	58.3mm
–	Internal volume per section	0.61L
–	Leg section weight	4.4kg
–	Mid section weight	4kg
–	Max single-piece delivery size	16sections
–	Output at ΔT30	31.0W
–	Output at ΔT50	58.0W

φ = K_m × ΔTⁿ · K_m = 0.479 · n = 1.226
Tested to EN 442 · BSRIA · Test ref: 61431
Declaration of Performance: 202009-1102 · CE marked