![Enviro EG 40 B Owner'S Manual Download Page 7](http://html1.mh-extra.com/html/enviro/eg-40-b/eg-40-b_owners-manual_2415747007.webp)
A. USING AN EXISTING CHIMNEY
•
Measure the height of the chimney beforehand and
purchase the appropriate kit. Never attempt to over stretch
a flexible liner to accommodate the height of the chimney.
•
Any flue damper must be removed or locked permanently in
the open position.
•
The chimney must be clean, in good working order and
constructed out of non-combustible materials.
•
Make sure that all chimney clean-outs are tightly fitting and
will not permit air to leak into the chimney.
•
Make all gas connections and check for leaks.
See vent manufacturer's instructions for vent system clearances to
combustibles and vent terminal clearance from roof.
MANUFACTURERS GENERAL VENTING
GUIDELINES
This information is compiled by the manufacturer as
a very general rule for single appliance venting of
the EG40 gas stove with 4" Type B gas vent.
Venting code and regulations may vary from area to
area, please check with the local, state/provincial
codes regarding the suitability of your application.
For other special venting requirements, please refer
to the local, state/provincial or national codes.
For best venting performance, we recommend total
vent height of 10 ft (3m) to 30 ft (9m) The total
horizontal length depends on the number of elbows
used a 90 elbow accounts for 5’ of the horizontal
run.
The venting should never slope down. 1/4" rise per
2' horizontal is recommended.
If practical, it is best to locate the appliance to permit
the use of shorter horizontals and fewer elbows.
-Two 90
°
elbow maximum total horizontal length of
20 ft (6m).
-Three 90
°
elbow maximum total horizontal length of
13 ft (3.8m).
-Four 90
°
elbow maximum total horizontal length of
6 ft (1.9m).
-Five 90
°
elbow, maximum total horizontal length of
0 ft (0m).
If 45
°
elbows are used, one 90
°
elbow is equivalent
to two 45
°
elbows.
Venting rise should be a minimum of 1 ft (.31m) from
the top of the unit before any horizontal run.
The bottom of the vent cap shall extend at least 2 ft.
(.6m) above the highest point of the roof where it
passes through and at least 2 ft (.6m) higher than
any portion of the roof within a horizontal distance of
10 ft. (3m).
7