Oversized Classic 3 Tube Cast Iron Radiator 20"
Oversized Classic 3 Tube Cast Iron Radiator 20"
$1,380.00
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Low Profile, Extended Performance
The 20" Oversized 3-Tube Classic Cast Iron Radiator brings traditional style and reliable heat output to a compact height—now extended in length for greater coverage and warmth in larger spaces. With its low profile and classic tube design, this radiator is perfect for placement under bay windows, along long corridors, or anywhere vertical space is limited but powerful heat is needed.
Each radiator is precision-cast in Europe and hand-assembled to order, then finished in your choice of painted color, metallic tone, or hand-polished style. Custom sizing and color-matching are also available to ensure the perfect fit for your interior.
Oversized radiators are shipped in two or more sections for safe delivery and simple on-site reassembly. Each order includes joining threads, gaskets, an assembly tool, and clear step-by-step instructions.
✅ Suitable for both hydronic hot-water and steam heating systems (1-pipe or 2-pipe)
✅ Extended length for broader heat coverage
✅ Precision-engineered and pressure-tested for durability
✅ Backed by a 25-year guarantee
📞 Call 212-814-6888 to customize or order your Oversized 20" 3-Tube Classic 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) REGULAR BOILER |
BTUs (ΔT=30) HEAT PUMPS |
EDR (sq.ft) | Radiator Length (in) | Radiator Weight (lb) | Primer | Painted | Powder Coated | Metallic |
|---|---|---|---|---|---|---|---|---|---|---|---|
| NC3-500-21 | 21 | 5817 | 3780 | 1911 | 24.36 | 50.56 | 158 | $1424 | $1844 | $1865 | $2033 |
| NC3-500-22 | 22 | 6094 | 3960 | 2002 | 25.52 | 52.92 | 165 | $1468 | $1908 | $1930 | $2106 |
| NC3-500-23 | 23 | 6371 | 4140 | 2093 | 26.68 | 55.28 | 173 | $1512 | $1972 | $1995 | $2179 |
| NC3-500-24 | 24 | 6648 | 4320 | 2184 | 27.84 | 57.64 | 180 | $1556 | $2036 | $2060 | $2252 |
| NC3-500-25 | 25 | 6925 | 4500 | 2275 | 29.0 | 60.0 | 188 | $1600 | $2100 | $2125 | $2325 |
| NC3-500-26 | 26 | 7202 | 4680 | 2366 | 30.16 | 62.36 | 195 | $1644 | $2164 | $2190 | $2398 |
| NC3-500-27 | 27 | 7479 | 4860 | 2457 | 31.32 | 64.72 | 203 | $1688 | $2228 | $2255 | $2471 |
| NC3-500-28 | 28 | 7756 | 5040 | 2548 | 32.48 | 67.08 | 210 | $1732 | $2292 | $2320 | $2544 |
| NC3-500-29 | 29 | 8033 | 5220 | 2639 | 33.64 | 69.44 | 218 | $1776 | $2356 | $2385 | $2617 |
| NC3-500-30 | 30 | 8310 | 5400 | 2730 | 34.8 | 71.8 | 225 | $1820 | $2420 | $2450 | $2690 |
| NC3-500-31 | 31 | 8587 | 5580 | 2821 | 35.96 | 74.16 | 233 | $1864 | $2484 | $2515 | $2763 |
| NC3-500-32 | 32 | 8864 | 5760 | 2912 | 37.12 | 76.52 | 240 | $1908 | $2548 | $2580 | $2836 |
| NC3-500-33 | 33 | 9141 | 5940 | 3003 | 38.28 | 78.88 | 248 | $1952 | $2612 | $2645 | $2909 |
| NC3-500-34 | 34 | 9418 | 6120 | 3094 | 39.44 | 81.24 | 255 | $1996 | $2676 | $2710 | $2982 |
| NC3-500-35 | 35 | 9695 | 6300 | 3185 | 40.6 | 83.6 | 263 | $2040 | $2740 | $2775 | $3055 |
| NC3-500-36 | 36 | 9972 | 6480 | 3276 | 41.76 | 85.96 | 270 | $2084 | $2804 | $2840 | $3128 |
| NC3-500-37 | 37 | 10249 | 6660 | 3367 | 42.92 | 88.32 | 278 | $2128 | $2868 | $2905 | $3201 |
| NC3-500-38 | 38 | 10526 | 6840 | 3458 | 44.08 | 90.68 | 285 | $2172 | $2932 | $2970 | $3274 |
| NC3-500-39 | 39 | 10803 | 7020 | 3549 | 45.24 | 93.04 | 293 | $2216 | $2996 | $3035 | $3347 |
| NC3-500-40 | 40 | 11080 | 7200 | 3640 | 46.4 | 95.4 | 300 | $2260 | $3060 | $3100 | $3420 |