Enviro Meridian User Manual

fumes such as stairwells, covered breezeway, etc.

2. Vent surfaces can become 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 12” (30 cm) 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.

Installation

A

24 in (61 cm)

Above grass, top of plants, wood, or any other combustible materials.

B

48 in  (122 cm) 

From beside/below any door or window that may be opened.

C

24 in (61 cm)

From above any door or window that may be opened.

D

24 in (61 cm)

To any adjacent building, fences and protruding parts of the structure.

E

24 in (61 cm)

Below any eave or roof overhang

F

12 in (30 cm)

To outside corner.

G

12 in (30 cm)

To inside corner, combustible wall (vertical and horizontal terminations).

H

3 ft (91 cm) within a height of 15 ft (4.5 

m) above the meter/regulator assembly

To each side of center line extended above natural gas or propane meter/regulator assembly or 

mechanical vent.

I

3 ft (91 cm)

From any forced air intake of other appliance

J

12 in (30 cm)

Clearance to non-mechanical air supply inlet to building, or the combustion air inlet to any appliance.

K

24 in (61 cm)

Clearance above roof line for vertical terminations.

L

7 ft (2.13 m)

Clearance above paved sidewalk or paved driveway located on public property.

Air Supply Inlet

Gas Meter

Restriction Zone

(Termination not allowed)

Termination Cap

G

G

Opens

Opens

Opens

D

F

B

B

A

I

H

K

G

G

L

C

E

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 

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