1030mm 220mm Rathmell 2 Column Cast iron radiators from our Rathmell 2 Column range. Set room size / BTU Calculator Heat Output (BTU) Calculator Use this calculator to determine the required heat output to heat your room. A BTU (British Thermal Unit) is a unit of measurement of heat per hour. The BTU calculator will determine the size and quantitry of radiators needed per room. Room Type Dining Room Lounge Bathroom Bedroom Kitchen Room Dimension Metres Feet Width Length Height Extras Is your room North facing? Does your room have French windows? Does your room have double glazing? BTU's Required: Only show options wih required heat output Size / Finish Valves Pipe Shrouds Wall Stays Bleed Nipples Height 1030mm Width 220mm 3 sections, 867 BTUs/255 Watts (ΔT 50°) 282mm 4 sections, 1156 BTUs/340 Watts (ΔT 50°) 344mm 5 sections, 1445 BTUs/425 Watts (ΔT 50°) 406mm 6 sections, 1734 BTUs/510 Watts (ΔT 50°) 468mm 7 sections, 2023 BTUs/595 Watts (ΔT 50°) 530mm 8 sections, 2312 BTUs/680 Watts (ΔT 50°) 592mm 9 sections, 2601 BTUs/765 Watts (ΔT 50°) 654mm 10 sections, 2890 BTUs/850 Watts (ΔT 50°) 716mm 11 sections, 3179 BTUs/935 Watts (ΔT 50°) 778mm 12 sections, 3468 BTUs/1020 Watts (ΔT 50°) 840mm 13 sections, 3757 BTUs/1105 Watts (ΔT 50°) 902mm 14 sections, 4046 BTUs/1190 Watts (ΔT 50°) 964mm 15 sections, 4335 BTUs/1275 Watts (ΔT 50°) 1026mm 16 sections, 4624 BTUs/1360 Watts (ΔT 50°) 1088mm 17 sections, 4913 BTUs/1445 Watts (ΔT 50°) 1150mm 18 sections, 5202 BTUs/1530 Watts (ΔT 50°) 1212mm 19 sections, 5491 BTUs/1615 Watts (ΔT 50°) 1274mm 20 sections, 5780 BTUs/1700 Watts (ΔT 50°) 1336mm 21 sections, 6069 BTUs/1785 Watts (ΔT 50°) 1398mm 22 sections, 6358 BTUs/1870 Watts (ΔT 50°) 1460mm 23 sections, 6647 BTUs/1955 Watts (ΔT 50°) 1522mm 24 sections, 6936 BTUs/2040 Watts (ΔT 50°) 1584mm 25 sections, 7225 BTUs/2125 Watts (ΔT 50°) 1646mm 26 sections, 7514 BTUs/2210 Watts (ΔT 50°) 1708mm 27 sections, 7803 BTUs/2295 Watts (ΔT 50°) 1770mm 28 sections, 8092 BTUs/2380 Watts (ΔT 50°) 1832mm 29 sections, 8381 BTUs/2465 Watts (ΔT 50°) 1894mm 30 sections, 8670 BTUs/2550 Watts (ΔT 50°) Radiator Assembly Tool Your radiator will be delivered in multiple parts & require assembly on site. A radiator assembly tool can be hired from Renaissance at Home and can be returned for a full refund (less postage costs). None Cast Iron Radiator Assembly Tool For 1 Inch Connectors £89.50 Colour / Finish All Renaissance Specialist Primer Renaissance Ancient Breeze Renaissance Buttermilk Renaissance Foundry Grey Renaissance French Grey Renaissance Graphite Grey Renaissance Hammered Bronze Renaissance Hammered Gold Renaissance Parchment White Renaissance Satin Black Renaissance Vellum Renaissance Willow Green Renaissance Hand Burnished Specialist Antiqued French Grey Specialist Highlight Polish Specialist Satin Polished Specialist Vintage Copper Specialist Custom Colour Please enter the brand name and colour name. Some examples are shown below: Farrow & Ball - Elephants BreathRAL 1003Pantone 266 Custom Colour Manual Radiator Valves A manual radiator valve remains either on or off. Manual valves need to be physically rotated by hand to increase or decrease the amount of hot water flowing into your radiator. None £0 Brumpton 15mm Inlet Manual Valve (Chrome) £39.95 Crocus Wheel 15mm Inlet Manual Valve (Antique Brass) £39.95 Crocus Wheel 15mm Inlet Manual Valve (Black Nickel) £39.95 Crocus Wheel 15mm Inlet Manual Valve (Chrome) £63.00 Crocus Wheel 15mm Inlet Manual Valve (Satin Nickel) £63.00 Telford 15mm Inlet Manual Valve (Chrome) £39.95 Throttle 15mm Inlet Manual Valve (Chrome) £39.95 Thermostatic Radiator Valves A thermostatic radiator valve or TRV is self-regulating, and controls the temperature of the radiator by changing the amount, or flow, of hot water into your radiator. None £0 Crocus Wheel 15mm Inlet TRV (Antique Brass), Lacquered £70.00 Crocus Wheel 15mm Inlet Thermostatic Valve (Satin Nickel) £70.00 Crocus Wheel 15mm Inlet Thermostatic Valve (Black Nickel) £39.95 Crocus Wheel 15mm Inlet Thermostatic Valve (Chrome) £70.00 Kingsgrove 15mm Inlet Corner Thermostatic Valve (Pewter) £75.00 Kingsgrove 15mm Inlet Corner Thermostatic Valve (Satin Nickel) £75.00 Kingsgrove 15mm Inlet Corner Thermostatic Valve (Chrome) £75.00 Kingsgrove 15mm Inlet Lacquered Corner Thermostatic Valve (Brass) £75.00 Kingsgrove 15mm Inlet Lacquered Corner Thermostatic Valve (Brushed Brass) £75.00 Kingsgrove 15mm Inlet Lacquered Corner Thermostatic Valve (Antique Brass) £75.00 Kingsgrove 15mm Inlet Thermostatic Valve (Pewter) £75.00 Kingsgrove 15mm Inlet Lacquered Thermostatic Valve (Brushed Brass) £75.00 Kingsgrove 15mm Inlet Lacquered Thermostatic Valve (Antique Brass) £75.00 Kingsgrove 15mm Inlet Thermostatic Valve (Satin Nickel) £75.00 Kingsgrove 15mm Inlet Thermostatic Valve (Brass) £75.00 Kingsgrove 15mm Inlet Thermostatic Valve With Wooden Top (Chrome) £75.00 Kingsgrove 15mm Inlet Thermostatic Valve (Chrome) £39.95 Pipe Shrouds Pipe shrouds are used to cover the regular copper pipework of your heating system and to complement your radiator and valves. None £0 Pewter Pipe Shroud £15.00 Brushed Brass Pipe Shroud Lacquered £15.00 Satin Nickel Pipe Shroud £15.00 Brass Pipe Shroud £15.00 Chrome Pipe Shroud £15.00 Antique Brass Pipe Shroud Lacquered £15.00 Wall Stays Most cast iron radiators require at least one wall stay to safely hold it to the wall. Radiators over 10 sections require at least 2 wall stays. None £0 Stainless Steel Wall Stay £12.50 Stainless Steel Wall Stay 300mm £16.00 Galvanised Square Plate Wall Stay £10.50 Thistle Satin Nickel Wall Stay 200mm £29.95 Thistle Satin Nickel Wall Stay 300mm £34.96 Thistle Pewter Wall Stay 300mm £34.96 Thistle Lacquered Polished Brass Wall Stay 300mm £34.96 Thistle Pewter Wall Stay 200mm £29.95 Thistle Lacquered Polished Brass Wall Stay 200mm £29.95 Thistle Chrome Wall Stay 300mm £34.96 Thistle Chrome Wall Stay 200mm £29.95 Thistle Lacquered Antique Brass Wall Stay 200mm £29.95 Thistle Lacquered Antique Brass Wall Stay 300mm £34.96 Thistle Lacquered Brushed Brass Wall Stay 200mm £29.95 Thistle Lacquered Brushed Brass Wall Stay 300mm £34.96 Bleed Nipples None £0 Satin Nickel Bleed Nipple £1.10 Brass Bleed Nipple £1.10 Luxury Copper Air Bleed Valve £6.50 Luxury Chrome Air Bleed Valve £6.50 Luxury Polished Nickel Air Bleed Valve £6.50 Luxury Brass Air Bleed Valve £6.50 Total £100 (inc VAT) Back Next