Dansons Group FGB, IGB PLANNING- Exhaust Systems …, Determine Venting Size and Distance, Step

PLANNING— EXHAUST SYSTEMS … CONTINUED

DETERMINE VENTING SIZE AND DISTANCE:

It is recommended that the vent system be installed with a minimum of three (3’) of vertical rise above the appliance exhaust port.

Equivalent Vent Length (EVL) is the method of determining vent sizes and lengths, that takes into account the effect of different component parts on air flow.

STEP 1 To help you determine the correct size and/or run, simply fill in the chart below.

Pellet Venting	# of Elbows	Multiply by	Equivalent	Component
Component	OR feet of Pipe		Feet	Equivalent
90 Degree or Tee		X	5
45 Degree		X	3
Horizontal Pipe		X	1
Vertical Pipe		X	.5
			Total Equivalent

Step 2	Ensure the Total Equivalent is or is		eet F	30
								4 Inch Diameter Only
	less than 30.		ni
			ht	20
			gne
Step 3	Use the Sizing Chart to determine
	the proper venting size according to		Le	10	3 or 4 Inch Diameter Pipe
	the Total Equivalent and the		pPi
	Altitude above sea level.		t
			ne
NOTE:	In some cases it may be necessary		avl ui	0	1	2 3 4	5	6 7	8	9	10
	to contact Dansons Customer		qE			Altitude in Thousands of Feet
	Service personal to determine
	acceptable venting	Maximum venting height is 33’.									33’
	configurations
	and altitude adjustments	Maximum horizontal offset is 10’.

1-877-303-3134.	Use the Equivalent Vent Length						30’
	Chart to determine proper
	combination of component parts.						25’
	Vent must have a support			Use 4” Diameter “PL” Vent
				If venting outside of
	bracket every 5’ when on
				shaded area.
	the exterior wall.
							20’
	Vent height and run must
The diagram to the right will help to				Use 3” or 4” Diameter
	not exceed the distance			“PL” Vent, if venting in
	shown in the un-shaded						15’
give you a visual reference.				shaded area.
	region of chart.
	To achieve optimum						10’
	performance, keep vent runs
	as short as possible.
	Especially on horizontal
	installations.						5’
							0’
			0’		5’	10’
Glow Boy Pellet & Biomass		www.glowboystoves.com				11