Radiating Surface Supplied By Hot-Water Mains

Description

Direct Radiation. Fall of Temperature, 20°. Height of from 10 to 15 feet.

Diameter of Mains. Inches.	Total Estimated Length of Circuit in Lineal Feet
Diameter of Mains. Inches.	100 Sq. Ft.	200 Sq. Ft.	300 Sq. Ft.	400 3q. Ft.	500 Sq.ft.	600 sqFt.	700 sqFt.	800 Sq. Ft.	900 Sq.ft	1,000 sq ft
1	20
1 1/4	35	20
1 1/2	56	40	25
2	116	85	70	50
2 1/2	220	150	120	100	90
3	345	240	200	170	150	140	125	110	100	90
3 1/2	500	340	280	245	225	205	190	175	162	150
4	700	485	390	340	310	280	260	240	230
4 1/2	925	640	535	460	410	375	345	325	800
5	1,200	830	700	600	540	490	450		400
6	1,900	1,325	1,100	950	850	775	700	650	620	600
7		2,000	1,600	1,400	1,250	1,140	1,050	975	925
8				1,970	1,720	1,550	1,440	1,350	1,300
9							1,900	1,800	1,700	1,620

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