Roberts Gorden BH-100, BH-60, BH-40, BH-150, BH-175, BH-115, BH-140, BH-200, BH-80 Venting, inches

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.

2.Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream from where the burner and burner tube connect.

FIGURE 12: Venting

				(inches)			(centimeters)
		Model	A	E	F	A	E	F
A	E	BH-40	14	18	18	36	46	46
Unvented	Vent	BH-60	14	18	18	36	46	46
Radiant Tubes	Pipes	BH-80	20	24	18	51	61	46
		BH-100	20	24	18	51	61	46
Vented	F	BH-115/125	20	24	18	51	61	46
		BH-140/150	20	30	18	51	77	46
		BH-175/200	20	30	18	51	77	46

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