Enviro 50-1574 technical manual Letter Minimum Clearance Description

Installation

VENT TERMINATION REQUIREMENTS:

IT IS RECOMMENDED THAT YOUR PELLET STOVE BE INSTALLED BY AN AUTHORIZED DEALER/INSTALLER. Table 2: Use in conjunction with Figure 6 for allowable exterior vent termination locations.

Letter	Minimum Clearance	Description
A	61cm (24 in)	Above grass, top of plants, wood, or any other combustible materials.
B	122 cm (48 in)	Beside/below any door or window that may be opened. (46 cm (18”) if outside
		fresh air install.)
C	30 cm (12 in)	Above any door or window that may be opened. (23 cm (9”) if outside fresh air
		install.)
D	61cm (24 in)	To any adjacent building, fences and protruding parts of the structure.
E	61cm (24 in)	Below any eave or roof overhang
F	30 cm (12 in)	To outside corner.
G	30 cm (12 in)	To inside corner, combustible wall (vertical and horizontal terminations).
H	91 cm (3 ft) within a height	To each side of center line extended above natural gas or propane meter/
	of 4.5 m (15 ft) above the	regulator assembly or mechanical vent.
	meter/regulator assembly
I	91 cm (3 ft)	From any forced air intake of other appliance
J	30 cm (12 in)	Clearance to non-mechanical air supply inlet to building, or the combustion air
		inlet to any appliance.
K	61cm (24 in)	Clearance above roof line for vertical terminations.
L	2.13 m (7 ft)	Clearance above paved sidewalk or paved driveway located on public property.

1. Do not terminate the vent in any enclosed or semi-enclosed areas such as a carport, garage, attic, crawlspace, narrow walkway, closely fenced area, under a sundeck or porch, or any location that can build up a concentration of fumes such as stairwells, covered breezeway, etc.

2. Vent surfaces can become

						K	G
						E
D	F		Opens		B	C	G
						G
		Opens
	B		A		I	Opens	L
		Termination Cap	G	Gas Meter		H
		Air Supply Inlet				Restriction Zone
						(Termination not allowed)

Figure 6: Use in conjunction with Table 2 for allowable exterior vent termination

locations.

hot enough to cause burns if touched by children. Non-combustible shielding or guards may be required.

3.Termination must exhaust above the inlet elevation. It is recommended that at least five feet of vertical pipe be installed outside when the appliance is vented directly through a wall, to create some natural draft to prevent the possibility of smoke or odor during appliance shut down or power failure. This will keep exhaust from causing a nuisance or hazard from exposing people or shrubs to high temperatures. In any case, the safest and preferred venting method is to extend the vent through the roof vertically.

4.Distance from the bottom of the termination and grade is 30 cm (12 in) minimum. This is conditional upon the plants and nature of grade surface. The exhaust gases are hot enough to ignite grass, plants and shrubs located in the vicinity of termination. The grade surface must not be lawn.

5.If the unit is incorrectly vented or the air to fuel mixture is out of balance, a slight discoloration of the exterior of the house might occur. Since these factors are beyond the control of Sherwood Industries Ltd, we grant no guarantee against such incidents.

NOTE: Venting terminals shall not be recessed into walls or siding.

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