Sovereign 4 Tube Cast Iron Radiators 20"
Sovereign 4 Tube Cast Iron Radiators 20"
$656.00
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Compact, Classic, and Full of Character
The Sovereign 4-Tube 20" Cast Iron Radiator is the most compact option in our popular Sovereign range—offering authentic period styling with excellent heat performance in a low, versatile format. Ideal for spaces where height is limited, it’s a favorite among interior designers and restoration specialists for its refined proportions, traditional character, and dependable warmth.
Faithfully cast from original Victorian patterns and assembled by hand, each radiator is built to order and finished to your exact specifications. With its late Victorian/Edwardian design influence and solid cast iron construction, the Sovereign 20" radiator is equally at home in historic restorations, heritage projects, and design-led modern spaces.
Fully compatible with both steam and hydronic (hot water) heating systems, the Sovereign 20" combines timeless charm with reliable performance. Backed by a 25-year guarantee, it’s built to last for generations.
📞 Call 212 814 6888 to customize or order your Sovereign radiator today.
Product specifications
| Steam BTU output per section | |
|---|---|
| BTU output (Delta 50) per section (Regular gas Boiler) | |
| BTU output (Delta 30) per section (Heat pump) | |
| EDR sq ft (Equivalent Direct Radiation) | |
| Volume (gal) | |
| Weight (lb) | |
| Section Length (in) | |
| Height (in) |
Finishes and Lead Times
By default all of our cast iron radiators come in factory primer. Our lead times do vary throughout the year and depending upon the product finish chosen.
Painted Cast Iron Radiators
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We are able to paint radiators in any RAL colour, please contact us on 212 814 6888 to discuss your requirements.
Metallic Cast Iron Radiators
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Metallic polished radiators are priced based on size with larger radiators costing slightly more.
Powder Coated Cast Iron Radiators
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Powder coated radiators are priced based on size with larger radiators costing slightly more.
Hand Polished Cast Iron Radiators
Hand polishing cast iron radiators is a very time consuming process. Each section is individually polished with a series of bespoke polishing wheels.
We only polish the visible areas - the front, the top and on the end sections but not on the back which would be placed against the wall.
Branded Paint for Cast Iron Radiators
We are able to paint your cast iron radiators in any Farrow and Ball, Sanderson, Little Greene, Fired Earth or any other branded paint.
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| We also Stock the complete range of Farrow and Ball Colours | We also have access to the beautiful Heritage range of paints from Little Greene. |
Other paint colours are available and other RAL powder coat colours finished can be ordered.
If the colour you require is not above, please call us on 212 814 6888
Oversized Radiators
Our cast iron radiators are normally delivered via third-party pallet networks, using standard-sized pallets. For radiators that exceed these dimensions, we supply them in pre-assembled blocks along with the necessary assembly tools and clear, easy-to-follow instructions to ensure straightforward on-site assembly.
Full Specification Table
| Product Code | Columns | Steam BTUs | BTUs (ΔT=50) | BTUs (ΔT=30) | EDR (sq.ft) | Radiator Length (in) | Radiator Weight (lb) | Primer | Painted | Powder Coated | Metallic |
|---|---|---|---|---|---|---|---|---|---|---|---|
| S4C-480-1 | 1 | 328 | 213 | 108 | 1.37 | 3.36 | 10 | $552 | $572 | $573 | $581 |
| S4C-480-2 | 2 | 656 | 426 | 216 | 2.74 | 5.72 | 20 | $604 | $644 | $646 | $662 |
| S4C-480-3 | 3 | 984 | 639 | 324 | 4.11 | 8.08 | 30 | $656 | $716 | $719 | $743 |
| S4C-480-4 | 4 | 1312 | 852 | 432 | 5.48 | 10.44 | 40 | $708 | $788 | $792 | $824 |
| S4C-480-5 | 5 | 1640 | 1065 | 540 | 6.85 | 12.8 | 51 | $760 | $860 | $865 | $905 |
| S4C-480-6 | 6 | 1968 | 1278 | 648 | 8.22 | 15.16 | 61 | $812 | $932 | $938 | $986 |
| S4C-480-7 | 7 | 2296 | 1491 | 756 | 9.59 | 17.52 | 71 | $864 | $1004 | $1011 | $1067 |
| S4C-480-8 | 8 | 2624 | 1704 | 864 | 10.96 | 19.88 | 81 | $916 | $1076 | $1084 | $1148 |
| S4C-480-9 | 9 | 2952 | 1917 | 972 | 12.33 | 22.24 | 91 | $968 | $1148 | $1157 | $1229 |
| S4C-480-10 | 10 | 3280 | 2130 | 1080 | 13.7 | 24.6 | 101 | $1020 | $1220 | $1230 | $1310 |
| S4C-480-11 | 11 | 3608 | 2343 | 1188 | 15.07 | 26.96 | 111 | $1072 | $1292 | $1303 | $1391 |
| S4C-480-12 | 12 | 3936 | 2556 | 1296 | 16.44 | 29.32 | 121 | $1124 | $1364 | $1376 | $1472 |
| S4C-480-13 | 13 | 4264 | 2769 | 1404 | 17.81 | 31.68 | 131 | $1176 | $1436 | $1449 | $1553 |
| S4C-480-14 | 14 | 4592 | 2982 | 1512 | 19.18 | 34.04 | 141 | $1228 | $1508 | $1522 | $1634 |
| S4C-480-15 | 15 | 4920 | 3195 | 1620 | 20.55 | 36.4 | 152 | $1280 | $1580 | $1595 | $1715 |
| S4C-480-16 | 16 | 5248 | 3408 | 1728 | 21.92 | 38.76 | 162 | $1332 | $1652 | $1668 | $1796 |
| S4C-480-17 | 17 | 5576 | 3621 | 1836 | 23.29 | 41.12 | 172 | $1384 | $1724 | $1741 | $1877 |
| S4C-480-18 | 18 | 5904 | 3834 | 1944 | 24.66 | 43.48 | 182 | $1436 | $1796 | $1814 | $1958 |
| S4C-480-19 | 19 | 6232 | 4047 | 2052 | 26.03 | 45.84 | 192 | $1488 | $1868 | $1887 | $2039 |
| S4C-480-20 | 20 | 6560 | 4260 | 2160 | 27.4 | 48.2 | 202 | $1540 | $1940 | $1960 | $2120 |