Stelrad Specification Book January 2025 - Catalog - Page 67


LST STANDARD
50
K1
P+
K2
(75/65/20ºC)
Casing
Height
mm
500
650
800
Casing
Length
mm
Emitter
Height
mm
Emitter
Length
mm
Stelrad
UIN
Heat output
Watts
Btu/hr
Stelrad
UIN
Heat output
Watts
Btu/hr
Stelrad
UIN
Heat output
Watts
Btu/hr
560
300
400
145000
196
669
145008
284
969
145016
348
760
300
600
145001
293
1000
145009
426
1454
145017
522
1187
1781
960
300
800
145002
391
1334
145010
568
1938
145018
696
2375
1160
300
1000
145003
489
1668
145011
710
2423
145019
870
2968
1360
300
1200
145004
587
2003
145012
852
2907
145020
1044
3562
1560
300
1400
145005
685
2337
145013
994
3392
145021
1218
4156
1760
300
1600
145006
782
2668
145014
1136
3876
145022
1392
4750
1960
300
1800
145007
880
3003
145015
1278
4361
145023
1566
5343
560
450
400
145024
290
989
145032
386
1317
145040
478
1631
760
450
600
145025
435
1484
145033
580
1979
145041
717
2446
960
450
800
145026
580
1979
145034
773
2637
145042
956
3262
1160
450
1000
145027
725
2474
145035
966
3296
145043
1195
4077
1360
450
1200
145028
870
2968
145036
1159
3955
145044
1434
4893
1560
450
1400
145029
1015
3463
145037
1352
4613
145045
1673
5708
1760
450
1600
145030
1160
3958
145038
1546
5275
145046
1912
6524
1960
450
1800
145031
1305
4453
145039
1739
5933
145047
2151
7339
460
600
300
145072
274
935
-
-
-
145073
461
1573
560
600
400
145048
365
1245
145056
501
1709
145064
615
2098
3146
760
600
600
145049
548
1870
145057
751
2562
145065
922
960
600
800
145050
730
2491
145058
1002
3419
145066
1230
4197
1160
600
1000
145051
913
3115
145059
1252
4272
145067
1537
5244
1360
600
1200
145052
1096
3740
145060
1502
5125
145068
1844
6292
1560
600
1400
145053
1278
4361
145061
1753
5981
145069
2152
7343
1760
600
1600
145054
1461
4985
145062
2003
6834
145070
2459
8390
1960
600
1800
145055
1643
5606
145063
2254
7691
145071
2767
9441
t50 is the UK’s industry standard for heating outputs, which has an operating temperature of 75/65/20ºC. If you have a low temperature
heat source you may wish to consider t40 or t30 output (see your installer or system designer or download from www.stelrad.com).
For EN442 data, technical and installation information please visit our website: www.stelrad.com and search product downloads.
For systems not operating at DeltaT 50 the correction factors table on page 104 should be applied.
LST Standard front case view.
YEAR WARRANTY
ON EMITTER
LST Standard inside the casing
showing the emitter.
LST Standard emitter, showing
high level valve option (valve
not included).
LST Standard circular knockout
for TRV. Rectangular knockout
for pipe.
BAR
WORKING
PRESSURE
67
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