Tesi 4
Thanks to the four columns and high performance, TESI 4 is suitable for environments that require high caloric power. The TESI radiators represent the most functional, modular and elegant system for heating all environments. TESI 4 has a depth of 139 mm and heights from 200 to 2500 mm.

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Construction features
- tubes made of 25 mm diameter sheet steel
- manifolds made of pressed sheet steel
- elements 45 mm long (element pitch)
- threading 1”1/4 G right and left on top and bottom manifold
- maximum working pressure 10 bar
- maximum working temperature 95°C

Model | Depth (mm) | Height (mm) | Conn. centre (mm) | Weight (kg) | Capacity (lt) |
|
Exponent |
---|---|---|---|---|---|---|---|
200 | 139,0 | 200 | 127 | 0,69 | 0,60 | 76,2 22,3 26,0 19,3 13,2 7,7 | 1,326 |
300 | 139,0 | 300 | 235 | 1,00 | 0,75 | 123,5 36,2 42,1 31,8 22,1 13,3 | 1,258 |
350 | 139,0 | 350 | 285 | 1,14 | 0,83 | 142,0 41,6 48,4 36,5 25,4 15,2 | 1,265 |
365 | 139,0 | 365 | 300 | 1,19 | 0,85 | 147,5 43,2 50,3 37,9 26,3 15,7 | 1,267 |
400 | 139,0 | 400 | 335 | 1,29 | 0,91 | 160,3 47,0 54,6 41,1 28,5 17,0 | 1,272 |
450 | 139,0 | 450 | 385 | 1,43 | 0,99 | 178,4 52,3 60,8 45,7 31,6 18,8 | 1,279 |
500 | 139,0 | 500 | 435 | 1,58 | 1,07 | 196,3 57,5 66,9 50,2 34,7 20,6 | 1,286 |
535 | 139,0 | 535 | 470 | 1,68 | 1,12 | 208,8 61,2 71,2 53,3 36,8 21,8 | 1,291 |
550 | 139,0 | 550 | 485 | 1,72 | 1,15 | 214,1 62,8 73,0 54,7 37,7 22,3 | 1,293 |
565 | 139,0 | 565 | 500 | 1,76 | 1,17 | 219,4 64,3 74,8 56,0 38,6 22,8 | 1,296 |
600 | 139,0 | 600 | 535 | 1,87 | 1,23 | 231,8 67,9 79,0 59,1 40,7 24,0 | 1,300 |
650 | 139,0 | 650 | 585 | 2,01 | 1,30 | 249,3 73,1 85,0 63,5 43,6 25,6 | 1,307 |
665 | 139,0 | 665 | 600 | 2,05 | 1,33 | 254,5 74,6 86,7 64,8 44,4 26,1 | 1,310 |
685 | 139,0 | 685 | 620 | 2,11 | 1,36 | 261,5 76,6 89,1 66,5 45,6 26,8 | 1,312 |
750 | 139,0 | 750 | 685 | 2,30 | 1,46 | 284,0 83,2 96,8 72,1 49,3 28,8 | 1,322 |
765 | 139,0 | 765 | 700 | 2,34 | 1,49 | 289,2 84,8 98,6 73,4 50,1 29,3 | 1,324 |
815 | 139,0 | 815 | 750 | 2,48 | 1,57 | 306,4 89,8 104,4 77,6 52,9 30,9 | 1,331 |
865 | 139,0 | 865 | 800 | 2,63 | 1,64 | 323,5 94,8 110,3 81,8 55,7 32,4 | 1,338 |
885 | 139,0 | 885 | 820 | 2,69 | 1,68 | 330,4 96,8 112,6 83,5 56,8 33,0 | 1,341 |
900 | 139,0 | 900 | 835 | 2,73 | 1,70 | 335,5 98,3 114,3 84,7 57,6 33,4 | 1,343 |
1000 | 139,0 | 1000 | 935 | 3,02 | 1,86 | 369,4 108,3 125,9 93,4 63,5 36,9 | 1,340 |
1200 | 139,0 | 1200 | 1135 | 3,60 | 2,17 | 436,6 128,0 148,8 110,5 75,2 43,8 | 1,335 |
1500 | 139,0 | 1500 | 1435 | 4,48 | 2,63 | 535,9 157,1 182,6 135,8 92,7 54,1 | 1,328 |
1800 | 139,0 | 1800 | 1735 | 5,35 | 3,11 | 633,9 185,8 216,0 160,9 110,0 64,4 | 1,321 |
2000 | 139,0 | 2000 | 1935 | 5,92 | 3,44 | 698,7 204,8 238,1 177,5 121,5 71,3 | 1,317 |
2200 | 139,0 | 2200 | 2135 | 6,50 | 3,76 | 763,0 223,6 260,0 194,0 133,0 78,1 | 1,312 |
2500 | 139,0 | 2500 | 2435 | 7,36 | 4,25 | 859,1 251,8 292,8 218,8 150,2 88,5 | 1,306 |
(*) Thanks to the high performance of Irsap TESI 4 radiators, the ideal Δt for low temperature projects is Δt at 30°C.
For Δt different from 50°C use the formula: Q=Qn (Δt / 50)n
Standard equipment
- 4 universal brakets for TESI (except for very small batteries)
- 4 connections with reductions 1 “1/4 to 1/2” for TESI white and colored, mounted on the radiator
- 1 1/2” air vent
- 1 cover for 1/2” blind plug
L Length (mm) | E N° Elem. | 200 | 300 | 350 | 365 | 400 | 450 | 500 | 535 | 550 | 565 | 600 | 650 | 665 | 685 | 750 | 765 | 815 | 865 | 885 | 900 | 1000 | 1200 | 1500 | 1800 | 2000 | 2200 | 2500 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
90 | 2 | Watt = W = | 52 | 84 | 97 | 101 | 109 | 122 | 134 | 142 | 146 | 150 | 158 | 170 | 173 | 178 | 194 | 197 | 209 | 221 | 225 | 229 | 252 | 298 | 365 | 432 | 476 | 520 | 586 |
135 | 3 | Watt = W = | 78 | 126 | 145 | 151 | 164 | 182 | 201 | 213 | 219 | 224 | 237 | 255 | 260 | 267 | 290 | 296 | 313 | 331 | 338 | 343 | 378 | 446 | 548 | 648 | 714 | 780 | 878 |
180 | 4 | Watt = W = | 104 | 168 | 194 | 201 | 218 | 243 | 268 | 285 | 292 | 299 | 316 | 340 | 347 | 356 | 387 | 394 | 418 | 441 | 450 | 457 | 504 | 595 | 731 | 864 | 952 | 1040 | 1171 |
225 | 5 | Watt = W = | 130 | 210 | 242 | 251 | 273 | 304 | 335 | 356 | 365 | 374 | 395 | 425 | 434 | 446 | 484 | 493 | 522 | 551 | 563 | 572 | 630 | 744 | 913 | 1080 | 1191 | 1300 | 1464 |
270 | 6 | Watt = W = | 156 | 252 | 290 | 302 | 328 | 365 | 401 | 427 | 438 | 449 | 474 | 510 | 520 | 535 | 581 | 591 | 627 | 662 | 676 | 686 | 755 | 893 | 1096 | 1296 | 1429 | 1560 | 1757 |
315 | 7 | Watt = W = | 182 | 295 | 339 | 352 | 382 | 426 | 468 | 498 | 511 | 523 | 553 | 595 | 607 | 624 | 678 | 690 | 731 | 772 | 788 | 800 | 881 | 1042 | 1278 | 1512 | 1667 | 1820 | 2049 |
360 | 8 | Watt = W = | 208 | 337 | 387 | 402 | 437 | 486 | 535 | 569 | 584 | 598 | 632 | 680 | 694 | 713 | 774 | 788 | 835 | 882 | 901 | 915 | 1007 | 1190 | 1461 | 1728 | 1905 | 2080 | 2342 |
405 | 9 | Watt = W = | 234 | 379 | 436 | 452 | 492 | 547 | 602 | 640 | 657 | 673 | 711 | 765 | 781 | 802 | 871 | 887 | 940 | 992 | 1013 | 1029 | 1133 | 1339 | 1644 | 1944 | 2143 | 2340 | 2635 |
450 | 10 | Watt = W = | 260 | 421 | 484 | 503 | 546 | 608 | 669 | 712 | 730 | 748 | 790 | 850 | 867 | 891 | 968 | 986 | 1044 | 1103 | 1126 | 1143 | 1259 | 1488 | 1826 | 2160 | 2381 | 2600 | 2928 |
495 | 11 | Watt = W = | 286 | 463 | 532 | 553 | 601 | 669 | 736 | 783 | 803 | 822 | 869 | 934 | 954 | 980 | 1065 | 1084 | 1149 | 1213 | 1238 | 1258 | 1385 | 1637 | 2009 | 2376 | 2619 | 2860 | 3220 |
540 | 12 | Watt = W = | 312 | 505 | 581 | 603 | 655 | 729 | 803 | 854 | 876 | 897 | 948 | 1019 | 1041 | 1069 | 1161 | 1183 | 1253 | 1323 | 1351 | 1372 | 1511 | 1785 | 2192 | 2592 | 2857 | 3120 | 3513 |
585 | 13 | Watt = W = | 338 | 547 | 629 | 654 | 710 | 790 | 870 | 925 | 948 | 972 | 1027 | 1104 | 1128 | 1158 | 1258 | 1281 | 1357 | 1433 | 1464 | 1486 | 1637 | 1934 | 2374 | 2808 | 3095 | - | - |
630 | 14 | Watt = W = | 364 | 589 | 677 | 704 | 765 | 851 | 937 | 996 | 1021 | 1047 | 1106 | 1189 | 1214 | 1248 | 1355 | 1380 | 1462 | 1544 | 1576 | 1601 | 1763 | 2083 | 2557 | 3024 | 3333 | - | - |
675 | 15 | Watt = W = | 390 | 631 | 726 | 754 | 819 | 912 | 1004 | 1067 | 1094 | 1122 | 1185 | 1274 | 1301 | 1337 | 1452 | 1478 | 1566 | 1654 | 1689 | 1715 | 1889 | 2232 | 2739 | 3240 | 3572 | - | - |
720 | 16 | Watt = W = | 416 | 673 | 774 | 804 | 874 | 973 | 1070 | 1138 | 1167 | 1196 | 1264 | 1359 | 1388 | 1426 | 1549 | 1577 | 1671 | 1764 | 1801 | 1829 | 2014 | 2381 | 2922 | 3456 | 3810 | - | - |
765 | 17 | Watt = W = | 442 | 715 | 823 | 855 | 929 | 1033 | 1137 | 1210 | 1240 | 1271 | 1343 | 1444 | 1475 | 1515 | 1645 | 1676 | 1775 | 1874 | 1914 | 1944 | 2140 | 2529 | 3105 | 3673 | 4048 | - | - |
810 | 18 | Watt = W = | 468 | 757 | 871 | 905 | 983 | 1094 | 1204 | 1281 | 1313 | 1346 | 1422 | 1529 | 1561 | 1604 | 1742 | 1774 | 1880 | 1985 | 2027 | 2058 | 2266 | 2678 | 3287 | 3889 | 4286 | - | - |
855 | 19 | Watt = W = | 494 | 800 | 919 | 955 | 1038 | 1155 | 1271 | 1352 | 1386 | 1421 | 1501 | 1614 | 1648 | 1693 | 1839 | 1873 | 1984 | 2095 | 2139 | 2172 | 2392 | 2827 | 3470 | 4105 | 4524 | - | - |
900 | 20 | Watt = W = | 520 | 842 | 968 | 1005 | 1092 | 1216 | 1338 | 1423 | 1459 | 1495 | 1580 | 1699 | 1735 | 1782 | 1936 | 1971 | 2088 | 2205 | 2252 | 2287 | 2518 | 2976 | 3653 | 4321 | 4762 | - | - |
945 | 21 | Watt = W = | 546 | 884 | 1016 | 1056 | 1147 | 1277 | 1405 | 1494 | 1532 | 1570 | 1659 | 1784 | 1822 | 1871 | 2033 | 2070 | 2193 | 2315 | 2364 | 2401 | 2644 | 3125 | 3835 | 4537 | 5000 | - | - |
990 | 22 | Watt = W = | 572 | 926 | 1065 | 1106 | 1202 | 1337 | 1472 | 1565 | 1605 | 1645 | 1738 | 1869 | 1908 | 1960 | 2129 | 2168 | 2297 | 2426 | 2477 | 2515 | 2770 | 3273 | 4018 | 4753 | 5238 | - | - |
1035 | 23 | Watt = W = | 598 | 968 | 1113 | 1156 | 1256 | 1398 | 1539 | 1636 | 1678 | 1720 | 1817 | 1954 | 1995 | 2050 | 2226 | 2267 | 2402 | 2536 | 2590 | 2630 | 2896 | - | - | - | - | - | - |
1080 | 24 | Watt = W = | 624 | 1010 | 1161 | 1206 | 1311 | 1459 | 1606 | 1708 | 1751 | 1794 | 1896 | 2039 | 2082 | 2139 | 2323 | 2365 | 2506 | 2646 | 2702 | 2744 | 3022 | - | - | - | - | - | - |
1125 | 25 | Watt = W = | 650 | 1052 | 1210 | 1257 | 1366 | 1520 | 1673 | 1779 | 1824 | 1869 | 1975 | 2124 | 2169 | 2228 | 2420 | 2464 | 2611 | 2757 | 2815 | 2858 | 3148 | - | - | - | - | - | - |
1170 | 26 | Watt = W = | 675 | 1094 | 1258 | 1307 | 1420 | 1581 | 1739 | 1850 | 1897 | 1944 | 2053 | 2209 | 2255 | 2317 | 2517 | 2563 | 2715 | 2867 | 2927 | 2973 | 3273 | - | - | - | - | - | - |
1215 | 27 | Watt = W = | 701 | 1136 | 1307 | 1357 | 1475 | 1641 | 1806 | 1921 | 1970 | 2019 | 2132 | 2294 | 2342 | 2406 | 2613 | 2661 | 2819 | 2977 | 3040 | 3087 | 3399 | - | - | - | - | - | - |
1260 | 28 | Watt = W = | 727 | 1178 | 1355 | 1408 | 1529 | 1702 | 1873 | 1992 | 2043 | 2094 | 2211 | 2379 | 2429 | 2495 | 2710 | 2760 | 2924 | 3087 | 3153 | 3201 | 3525 | - | - | - | - | - | - |
1305 | 29 | Watt = W = | 753 | 1220 | 1403 | 1458 | 1584 | 1763 | 1940 | 2063 | 2116 | 2168 | 2290 | 2464 | 2515 | 2584 | 2807 | 2858 | 3028 | 3198 | 3265 | 3316 | 3651 | - | - | - | - | - | - |
1350 | 30 | Watt = W = | 779 | 1262 | 1452 | 1508 | 1639 | 1824 | 2007 | 2135 | 2189 | 2243 | 2369 | 2549 | 2602 | 2673 | 2904 | 2957 | 3133 | 3308 | 3378 | 3430 | 3777 | - | - | - | - | - | - |
1395 | 31 | Watt = W = | 805 | 1304 | 1500 | 1558 | 1693 | 1884 | 2074 | 2206 | 2262 | 2318 | 2448 | 2633 | 2689 | 2762 | 3000 | 3055 | - | - | - | - | - | - | - | - | - | - | - |
1440 | 32 | Watt = W = | 831 | 1347 | 1548 | 1609 | 1748 | 1945 | 2141 | 2277 | 2335 | 2393 | 2527 | 2718 | 2776 | 2852 | 3097 | 3154 | - | - | - | - | - | - | - | - | - | - | - |
1485 | 33 | Watt = W = | 857 | 1389 | 1597 | 1659 | 1802 | 2006 | 2208 | 2348 | 2408 | 2467 | 2606 | 2803 | 2862 | 2941 | 3194 | 3252 | - | - | - | - | - | - | - | - | - | - | - |
1530 | 34 | Watt = W = | 883 | 1431 | 1645 | 1709 | 1857 | 2067 | 2275 | 2419 | 2481 | 2542 | 2685 | 2888 | 2949 | 3030 | 3291 | 3351 | - | - | - | - | - | - | - | - | - | - | - |
1575 | 35 | Watt = W = | 909 | 1473 | 1694 | 1759 | 1912 | 2128 | 2342 | 2490 | 2554 | 2617 | 2764 | 2973 | 3036 | 3119 | 3388 | 3450 | - | - | - | - | - | - | - | - | - | - | - |
1620 | 36 | Watt = W = | 935 | 1515 | 1742 | 1810 | 1966 | 2188 | 2408 | 2561 | 2627 | 2692 | 2843 | 3058 | 3123 | 3208 | - | - | - | - | - | - | - | - | - | - | - | - | - |
1665 | 37 | Watt = W = | 961 | 1557 | 1790 | 1860 | 2021 | 2249 | 2475 | 2633 | 2700 | 2766 | 2922 | 3143 | 3209 | 3297 | - | - | - | - | - | - | - | - | - | - | - | - | - |
1710 | 38 | Watt = W = | 987 | 1599 | 1839 | 1910 | 2076 | 2310 | 2542 | 2704 | 2772 | 2841 | 3001 | 3228 | 3296 | 3386 | - | - | - | - | - | - | - | - | - | - | - | - | - |
1755 | 39 | Watt = W = | 1013 | 1641 | 1887 | 1961 | 2130 | 2371 | 2609 | 2775 | 2845 | 2916 | 3080 | 3313 | 3383 | 3475 | - | - | - | - | - | - | - | - | - | - | - | - | - |
1800 | 40 | Watt = W = | 1039 | 1683 | 1936 | 2011 | 2185 | 2432 | 2676 | 2846 | 2918 | 2991 | 3159 | 3398 | 3470 | 3564 | - | - | - | - | - | - | - | - | - | - | - | - | - |
Type | Description | Document | Downloads |
---|---|---|---|
Catalogs |
Catalog 2023 | Catalog 2023 | |
Connections |
TESI hydraulic connections | Allacciamenti idraulici tesi EN | |
Catalogs |
Color chart 2023 | Color chart 2023 | |
Product certification |
TESI_4C_NF_certification | TESI_4C_NF_certification | |
Installation Manual |
Mensola Tesi | Mensola Tesi | |
Installation Manual |
281M0221_TESI | 281M0221_TESI |
Type | Description | Document | Downloads |
---|---|---|---|
3D Model |
TESI_4_H1502_10EL | TESI_4_H1502_10EL |
|
3D Model |
TESI_4_H1502_15EL | TESI_4_H1502_15EL |
|
3D Model |
TESI_4_H1502_25EL | TESI_4_H1502_25EL |
|
3D Model |
TESI_4_H2202_10EL | TESI_4_H2202_10EL |
|
3D Model |
TESI_4_H2202_15EL | TESI_4_H2202_15EL |
|
3D Model |
TESI_4_H2202_22EL | TESI_4_H2202_22EL |
|
3D Model |
TESI_4_H302_10EL | TESI_4_H302_10EL |
|
3D Model |
TESI_4_H302_15EL | TESI_4_H302_15EL |
|
3D Model |
TESI_4_H302_25EL | TESI_4_H302_25EL |
|
3D Model |
TESI_4_H602_10EL | TESI_4_H602_10EL |
|
3D Model |
TESI_4_H602_15EL | TESI_4_H602_15EL |
|
3D Model |
TESI_4_H602_25EL | TESI_4_H602_25EL |
|

Calculate the power
How to choose the Tesi 4 radiator for your home? How to know what is the right power to heat each room? Online thermal requirement allows you to identify the most suitable radiator for your living space