Enviro EF2 사용자 설명서

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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) 

Beside/below any door or window that may be opened. (18” (46 cm) if outside 

fresh air install.) 

C

12 in (30 cm)

Above any door or window that may be opened. (9” (23 cm) if outside fresh air 

install.) 

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  fumes 

such as stairwells, covered 

breezeway, etc.

2.  Vent surfaces can become