Roberts Gorden TF-300, TF-350, TF-120, TF-200, TF-160, TF-250, TF-380 service manual Venting, Model

SECTION 3: CLEARANCES TO COMBUSTIBLES

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)
A	E	Model	A	E	F	A	E	F
		TF-120	14	18	18	36	46	46
Unvented
	Vent	TF-160	20	24	18	51	61	46
Radiant Tubes	Pipes	TF-200	20	24	18	51	61	46
		TF-250	20	24	18	51	61	46
Vented		TF-300	20	30	18	51	77	46
	F
		TF-350	20	30	18	51	77	46
		TF-380	20	30	18	51	77	46

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