Stelrad Specification Book January 2026 - Catalog - Page 41
PLANAR K3
50
K3
(75/65/20ºC)
Height
mm
300
500
600
700
Length
mm
Sections
White
UIN
Colour
UIN
Watts
1000
Heat output
Btu/hr
30
141230
141230c
1346
4593
2000
60
141231
141231c
2692
9185
600
18
141233
141233c
1210
4129
700
21
141300
141300c
1412
4818
800
24
141234
141234c
1614
5507
900
27
141301
141301c
1815
6193
1000
30
141235
141235c
2017
6882
1100
33
141302
141302c
2219
7572
1200
36
141236
141236c
2420
8257
9636
1400
42
141237
141237c
2824
1600
48
141238
141238c
3227
11011
1800
54
141239
141239c
3631
12389
2000
60
141240
141240c
4034
13765
2400
72
141303
141303c
4841
16518
400
12
141241
141241c
933
3184
500
15
141304
141304c
1166
3979
600
18
141242
141242c
1399
4774
700
21
141305
141305c
1632
5569
800
24
141243
141243c
1866
6367
900
27
141306
141306c
2099
7162
1000
30
141244
141244c
2332
7957
1100
33
141307
141307c
2565
8752
1200
36
141245
141245c
2798
9547
1400
42
141246
141246c
3265
11141
1600
48
141247
141247c
3731
12731
14324
1800
54
141248
141248c
4198
2000
60
141249
141249c
4664
15914
2400
72
141308
141308c
5597
19098
500
15
141309
141309c
1319
4501
600
18
141251
141251c
1582
5398
700
21
141310
141310c
1846
6299
800
24
141252
141252c
2110
7200
900
27
141311
141311c
2373
8097
1000
30
141253
141253c
2637
8998
1100
33
141312
141312c
2901
9899
1200
36
141254
141254c
3164
10796
1400
42
141255
141255c
3692
12598
1600
48
141256
141256c
4219
14396
1800
54
141257
141257c
4747
16197
2000
60
141258
141258c
5274
17996
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 stelradprofessional.com).
For EN442 data, technical and installation information please visit stelradprofessional.com and search product downloads.
For systems not operating at DeltaT 50 the correction factors table on page 114 should be applied.
Piping connections are the same as the Stelrad Compact.
COLOUR OPTIONS
Comes in White as standard (RAL 9016). Please refer to page 118 for colour options.
Please note that once a coloured radiator has been ordered, it cannot be cancelled or returned.
EPD
BAR
WORKING
PRESSURE
WHITE IN
STOCK
VERIFIED
41
