Technical data

King 768mm	Middle Leg	708 768	270	79	110	135	12.5 13.0	1980	203	692
Short King 470mm	Middle Leg	418 470	270	79	110	135	7.4 7.8	1450	125	426
Short King 570mm	Middle Leg	518 570	270	79	110	135	8.6 9.0	1570	145	495
Short King 670mm	Middle Leg	618 670	270	79	110	135	11.6 12.2		172	587
Queen 760mm	Middle Leg	701mm 760mm	210	77	113	105	11.6 11.8	2400	170	560
Short Queen 510mm	Leg Middle	445mm 510mm	210	80	113	105	7.2 7.6		108	369
Prince	Middle Leg	680 750	150	72	113	75	6.4 6.9	1760	134	457
Cherub	Middle Leg	740 800	200	62	110	100	13.9 15.9	1900	146	498
Viscount 590mm	Middle Leg	540 595	175	66	110	88	7.5 7.9		99	338
Viscount 780mm	Middle Leg	728 780	175	66	110	88	9.6 10		134	457
Viscount 980mm	Middle Leg	923 980	175	66	110	88	12.0 12.4		168	573
Count 640mm	Middle Leg	590 640	175	62.5	100	88	8.4 8.8		108	369
Duchess 590mm	Middle Leg	540 590	170	70	110	85	8.3 8.7		104	355
Duchess 780mm	Middle Leg	730 780	170	70	110	85	11.0 11.4	2050	134	457
Rococo 950mm	Middle Leg	950	120	75		60		1300	120	399
2 Column 650mm	Middle Leg	572 650	84	66	110	42	4.1 4.4	800	110	375
2 Column 750mm	Middle Leg	672 750	84	66	110	42	4.6 4.9	900	133	454
3 Column 745mm	Middle Leg	676 745	120	61	110	60	4.6 5.0	1200	118	402
3 Column 645mm	Middle Leg	576 645	120	61	110	60	4.5 4.9	1100	105	358
3 Column 450mm	Middle Leg	376 450	120	61	110	60	3.0 3.45	950	75	256
4 Column 32"	Middle Leg	725 813	170	62	132	85	6.0 6.4	1050	152	518
4 Column 30"	Middle Leg	682 760	150	61	115	75	5.2 5.6	975	134	457
4 Column 26"	Middle Leg	582 660	150	61	115	75	4.4 4.8	800	116	396
4 Column 18"	Middle Leg	382 460	150	61	115	75	3.0 3.4	600	78	266
5 Column	Middle	302	175	47	85 stood on separate feet	88	3.0	600	68	232
9 Column	Middle Leg	300 340	340	60	76	170	7.0 7.4	1150	130	443

To calculate the heat output needed for a room;

Find the volume of the room by multiplying the width x length x height in metres. For downstairs lounges and dining rooms multiply by 50. For downstairs bedrooms, halls and kitchens multiply by 40. For upstairs lounges and dining rooms multiply by 40. For upstairs bedrooms, multiply by 35. For upstairs kitchens, multiply by 30. For downstairs bathrooms multiply by 90, for upstairs bathrooms multiply by 75. For rooms facing North add 15%. For French windows add 20%. For double glazing deduct 10%. For a very cold climate such as windy high altitude locations, add 10%. This will give you the required heat output in Watts. To convert heat outputs to BTU multiply the Watts figure by 3.41. For guidance on installing your Castrads cast iron radiator please download the Help Sheet Cast iron radiator sizing figures quoted here are given in good faith and are true to the best of Castrads' knowledge. Actual heat requirements for a given room can vary. The heat output of a radiator can also vary according to the paint finish and draftiness of the room.

Length of a radiator is the length of a section times the number of sections. Add 60mm at EACH end of radiator to obtain inlet/outlet pipe centre distances. This allows for supplied bush and valve at each end. Tolerance on these dimension s is + or - 4% and depends on the batch of radiator and the type of valve. Maximum working pressure for all Castrads' cast iron radiators is 90psi.

Castrads Technical data

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To calculate the heat output needed for a room;