Thermador PH54GS, PH48HS, PH48GS, PH42GS, PH36HS Duct Piece, Equivalent, Length ft, Duct Lengths

Equivalent Duct Lengths for Commonly Used Transitions

Duct Piece	Size of Duct	Equivalent	Duct Piece	Size of Duct	Equivalent
	Piece (in)	Length (ft)		Piece (in)	Length (ft)
	6	1.2	3¼" x 10"	6	10
			to Round
Smooth	7	0.95	90° Elbow	7	5
Straight	8	0.7	3¼" x 10"
			Center Reverse	N/A	15
	10	0.6	Elbow Left
3¼" x 10"			3¼" x 10"
	N/A	1	Center Reverse	N/A	25
Straight			Elbow Right
3¼" x 14"	N/A	0.7	3¼" x 10" Left	N/A	15
			Reverse Elbow
Straight
	6	12	3¼" x 10"
			Right Reverse	N/A	25
90° Elbow	7	8	Elbow
Round
	8	6		6	2
	6	5	Round	7	2
45° Elbow			Wall Cap	8	2
	7	4
Round
				10	2

83

3¼" x 10"					6	2
90° Elbow	N/A	5		Round	7	2
Round				Roof Cap
3¼” x 10"					8	2
45° Elbow	N/A	15		2' Long
Round
				3¼" x 10"	N/A	20
3¼" x 10"				Flex
	N/A	20
Flat Elbow
				3¼" x 10"	10	1
Round to	6	1		to Round
3¼" x 10"	7	1		7" Inline
				Backdraft	7
	6	5		Damper
3¼" x 10"
				3¼" x 10"
to Round	7	3
				Roof Jack	N/A
				and Shutter
Round to	6	10	NOTE: These commonly used installation parts can be purchased
3¼" x 10"
90° Elbow	7	8	at a local hardware store. THERMADOR® does not manufacture all
			these parts.

Table 1: Duct Lengths

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