Radiator Charts

Radiator Outputs

https://www.stelrad.com/radiators/standard-steel-radiators/classic-compact/

The following outputs are based on a 33C delta T.

This comes from a 75/30C profile, with an average temperature of 52.5C, giving a 33C difference to room temperatures.

The heat pump envelope allows loads to be increased 40% over these values if ever needed.

Range	Height	Length	Type	Output dt33
	mm	mm		Watts	Btu/hr
COMPACT	300	500	K1	147	502
COMPACT	300	1000	K1	294	1,002
COMPACT	300	1500	K1	441	1,505
COMPACT	300	2000	K1	587	2,005
COMPACT	300	2500	K1	735	2,507
COMPACT	300	3000	K1	881	3,007
COMPACT	450	400	K1	174	595
COMPACT	450	500	K1	218	744
COMPACT	450	600	K1	262	894
COMPACT	450	700	K1	305	1,042
COMPACT	450	800	K1	349	1,191
COMPACT	450	900	K1	392	1,339
COMPACT	450	1000	K1	436	1,489
COMPACT	450	1100	K1	480	1,638
COMPACT	450	1200	K1	523	1,786
COMPACT	450	1400	K1	610	2,084
COMPACT	450	1600	K1	698	2,383
COMPACT	450	1800	K1	785	2,680
COMPACT	450	2000	K1	872	2,978
COMPACT	450	2200	K1	960	3,275
COMPACT	450	2400	K1	1,047	3,572
COMPACT	450	2600	K1	1,134	3,872
COMPACT	450	2800	K1	1,222	4,169
COMPACT	450	3000	K1	1,309	4,466
COMPACT	600	400	K1	226	772
COMPACT	600	500	K1	283	965
COMPACT	600	600	K1	339	1,158
COMPACT	600	700	K1	396	1,351
COMPACT	600	800	K1	452	1,544
COMPACT	600	900	K1	509	1,737
COMPACT	600	1000	K1	565	1,930
COMPACT	600	1100	K1	622	2,123
COMPACT	600	1200	K1	679	2,316
COMPACT	600	1400	K1	792	2,702
COMPACT	600	1600	K1	905	3,088
COMPACT	600	1800	K1	1,018	3,474
COMPACT	600	2000	K1	1,131	3,860
COMPACT	600	2200	K1	1,244	4,246
COMPACT	600	2400	K1	1,357	4,632
COMPACT	600	2600	K1	1,470	5,018
COMPACT	600	2800	K1	1,583	5,404
COMPACT	600	3000	K1	1,696	5,790
COMPACT	700	400	K1	258	880
COMPACT	700	500	K1	323	1,101
COMPACT	700	600	K1	387	1,319
COMPACT	700	700	K1	451	1,540
COMPACT	700	800	K1	516	1,761
COMPACT	700	900	K1	580	1,979
COMPACT	700	1000	K1	645	2,200
COMPACT	700	1100	K1	709	2,420
COMPACT	700	1200	K1	773	2,639
COMPACT	700	1400	K1	902	3,080
COMPACT	700	1600	K1	1,031	3,519
COMPACT	700	1800	K1	1,160	3,960
COMPACT	700	2000	K1	1,289	4,399
COMPACT	700	2200	K1	1,418	4,839
COMPACT	700	2400	K1	1,547	5,280
COMPACT	700	2600	K1	1,676	5,719
COMPACT	700	2800	K1	1,805	6,160
COMPACT	700	3000	K1	1,934	6,599
COMPACT	300	500	P+	215	735
COMPACT	300	1000	P+	430	1,467
COMPACT	300	1500	P+	645	2,202
COMPACT	300	2000	P+	860	2,934
COMPACT	300	2500	P+	1,075	3,669
COMPACT	300	3000	P+	1,290	4,401
COMPACT	450	400	P+	243	831
COMPACT	450	500	P+	305	1,040
COMPACT	450	600	P+	365	1,247
COMPACT	450	700	P+	426	1,455
COMPACT	450	800	P+	487	1,662
COMPACT	450	900	P+	548	1,871
COMPACT	450	1000	P+	609	2,078
COMPACT	450	1100	P+	670	2,286
COMPACT	450	1200	P+	730	2,493
COMPACT	450	1400	P+	852	2,909
COMPACT	450	1600	P+	974	3,324
COMPACT	450	1800	P+	1,096	3,740
COMPACT	450	2000	P+	1,217	4,155
COMPACT	450	2200	P+	1,339	4,571
COMPACT	450	2400	P+	1,461	4,986
COMPACT	450	2600	P+	1,583	5,402
COMPACT	450	2800	P+	1,704	5,817
COMPACT	450	3000	P+	1,826	6,233
COMPACT	600	400	P+	310	1,059
COMPACT	600	500	P+	388	1,325
COMPACT	600	600	P+	466	1,589
COMPACT	600	700	P+	544	1,855
COMPACT	600	800	P+	621	2,119
COMPACT	600	900	P+	699	2,385
COMPACT	600	1000	P+	776	2,649
COMPACT	600	1100	P+	854	2,915
COMPACT	600	1200	P+	931	3,178
COMPACT	600	1400	P+	1,086	3,708
COMPACT	600	1600	P+	1,242	4,238
COMPACT	600	1800	P+	1,397	4,768
COMPACT	600	2000	P+	1,552	5,297
COMPACT	600	2200	P+	1,707	5,827
COMPACT	600	2400	P+	1,863	6,357
COMPACT	600	2600	P+	2,018	6,887
COMPACT	600	2800	P+	2,173	7,416
COMPACT	600	3000	P+	2,328	7,946
COMPACT	700	400	P+	353	1,205
COMPACT	700	500	P+	441	1,507
COMPACT	700	600	P+	530	1,808
COMPACT	700	700	P+	618	2,109
COMPACT	700	800	P+	706	2,410
COMPACT	700	900	P+	795	2,712
COMPACT	700	1000	P+	883	3,013
COMPACT	700	1100	P+	971	3,314
COMPACT	700	1200	P+	1,059	3,616
COMPACT	700	1400	P+	1,236	4,218
COMPACT	700	1600	P+	1,412	4,821
COMPACT	700	1800	P+	1,589	5,423
COMPACT	700	2000	P+	1,766	6,026
COMPACT	700	2200	P+	1,942	6,629
COMPACT	700	2400	P+	2,119	7,231
COMPACT	700	2600	P+	2,295	7,834
COMPACT	700	2800	P+	2,472	8,436
COMPACT	700	3000	P+	2,648	9,039
COMPACT	300	500	K2	283	967
COMPACT	300	1000	K2	567	1,934
COMPACT	300	1500	K2	850	2,901
COMPACT	300	2000	K2	1,133	3,868
COMPACT	300	2500	K2	1,417	4,835
COMPACT	300	3000	K2	1,700	5,802
COMPACT	450	400	K2	316	1,079
COMPACT	450	500	K2	396	1,351
COMPACT	450	600	K2	475	1,621
COMPACT	450	700	K2	554	1,891
COMPACT	450	800	K2	633	2,160
COMPACT	450	900	K2	712	2,430
COMPACT	450	1000	K2	791	2,700
COMPACT	450	1100	K2	870	2,970
COMPACT	450	1200	K2	949	3,240
COMPACT	450	1400	K2	1,107	3,779
COMPACT	450	1600	K2	1,266	4,321
COMPACT	450	1800	K2	1,424	4,860
COMPACT	450	2000	K2	1,582	5,400
COMPACT	450	2200	K2	1,740	5,939
COMPACT	450	2400	K2	1,898	6,479
COMPACT	450	2600	K2	2,057	7,021
COMPACT	450	2800	K2	2,215	7,560
COMPACT	450	3000	K2	2,373	8,100
COMPACT	600	400	K2	400	1,365
COMPACT	600	500	K2	500	1,705
COMPACT	600	600	K2	600	2,046
COMPACT	600	700	K2	699	2,387
COMPACT	600	800	K2	800	2,729
COMPACT	600	900	K2	900	3,070
COMPACT	600	1000	K2	999	3,411
COMPACT	600	1100	K2	1,099	3,752
COMPACT	600	1200	K2	1,199	4,092
COMPACT	600	1400	K2	1,399	4,776
COMPACT	600	1600	K2	1,599	5,457
COMPACT	600	1800	K2	1,799	6,140
COMPACT	600	2000	K2	1,999	6,822
COMPACT	600	2200	K2	2,198	7,503
COMPACT	600	2400	K2	2,399	8,186
COMPACT	600	2600	K2	2,598	8,868
COMPACT	600	2800	K2	2,798	9,551
COMPACT	600	3000	K2	2,998	10,232
COMPACT	700	400	K2	452	1,544
COMPACT	700	500	K2	566	1,932
COMPACT	700	600	K2	679	2,318
COMPACT	700	700	K2	792	2,704
COMPACT	700	800	K2	905	3,090
COMPACT	700	900	K2	1,018	3,476
COMPACT	700	1000	K2	1,131	3,862
COMPACT	700	1100	K2	1,245	4,248
COMPACT	700	1200	K2	1,358	4,634
COMPACT	700	1400	K2	1,584	5,406
COMPACT	700	1600	K2	1,811	6,180
COMPACT	700	1800	K2	2,037	6,952
COMPACT	700	2000	K2	2,263	7,724
COMPACT	700	2200	K2	2,489	8,496
COMPACT	700	2400	K2	2,715	9,268
COMPACT	700	2600	K2	2,942	10,041
COMPACT	700	2800	K2	3,168	10,813
COMPACT	700	3000	K2	3,394	11,585

COMPACT K3	300	1000	K3	778	2,656
COMPACT K3	300	2000	K3	1,557	5,312
COMPACT K3	500	600	K3	712	2,429
COMPACT K3	500	700	K3	830	2,833
COMPACT K3	500	800	K3	949	3,239
COMPACT K3	500	900	K3	1,067	3,642
COMPACT K3	500	1000	K3	1,186	4,048
COMPACT K3	500	1100	K3	1,305	4,453
COMPACT K3	500	1200	K3	1,423	4,857
COMPACT K3	500	1400	K3	1,661	5,666
COMPACT K3	500	1600	K3	1,898	6,477
COMPACT K3	500	1800	K3	2,135	7,286
COMPACT K3	500	2000	K3	2,373	8,095
COMPACT K3	500	2400	K3	2,847	9,714
COMPACT K3	600	400	K3	552	1,882
COMPACT K3	600	500	K3	690	2,353
COMPACT K3	600	600	K3	827	2,821
COMPACT K3	600	700	K3	965	3,292
COMPACT K3	600	800	K3	1,103	3,762
COMPACT K3	600	900	K3	1,241	4,233
COMPACT K3	600	1000	K3	1,378	4,703
COMPACT K3	600	1100	K3	1,516	5,174
COMPACT K3	600	1200	K3	1,654	5,644
COMPACT K3	600	1400	K3	1,930	6,585
COMPACT K3	600	1600	K3	2,205	7,524
COMPACT K3	600	1800	K3	2,481	8,466
COMPACT K3	600	2000	K3	2,757	9,407
COMPACT K3	600	2400	K3	3,309	11,289
COMPACT K3	700	500	K3	782	2,670
COMPACT K3	700	600	K3	939	3,203
COMPACT K3	700	700	K3	1,095	3,737
COMPACT K3	700	800	K3	1,252	4,272
COMPACT K3	700	900	K3	1,408	4,806
COMPACT K3	700	1000	K3	1,565	5,339
COMPACT K3	700	1100	K3	1,721	5,873
COMPACT K3	700	1200	K3	1,878	6,406
COMPACT K3	700	1400	K3	2,191	7,475
COMPACT K3	700	1600	K3	2,504	8,542
COMPACT K3	700	1800	K3	2,817	9,611
COMPACT K3	700	2000	K3	3,130	10,678