England's Stove Works 17-VL Installation & Operation Manual page 13

Approved Venting Method 3: Internal or External Masonry Chimney System
Chimney liner cross‐sectional
area (Length x Width) must be
no larger than twice the cross‐
sectional area of the flue collar
2
(2 x 28.27 in = 56.55 in
chimney liner is larger than
2
56.55 in , relining with a 5.5"
or 6.0" liner is required
Masonry Thimble with
proper clearance to
combustibles

Follow the rules listed above concerning maximum permissible flue liner size; installing this unit on masonry
chimneys exceeding 56.55
performance.

Use three sheet metal screws at each single wall chimney connector joint (check manufacturer's
recommendations when double wall chimney connector is used).

Drill three holes in the flue collar of the unit and attach the chimney connector to the unit using sheet metal
screws.

Avoid numerous elbows and excessive horizontal runs as both will lead to poor draft and increased creosote
accumulation. Horizontal runs of chimney connector must never exceed 4.0 ft. and the overall length of the
chimney connector must not exceed 8.0 ft.

A tight seal at the thimble is crucial for proper unit performance and to create a safe installation. Use the proper
adapter designed for connecting single or double wall chimney connector to a masonry thimble.

Have existing masonry chimneys inspected for safety and proper clearances to combustibles before putting them
into service; a qualified chimney sweep can perform this inspection.

External masonry chimneys often suffer cold downdrafts and poor draft performance even when they meet the
cross‐sectional area rules. In this case, a 6.0" insulated liner may be necessary.
Please Note:
Installation diagrams are for reference purposes only and are not drawn to scale, nor meant to be used as plans for each individual
installation. Please follow all venting system requirements, maintain the required clearances to combustibles, and follow all local
codes.
INSTALLATION
2
). If
2
in
in cross‐sectional area will result in decreased draft and the potential for poor unit
10 ft.
The 10‐3‐2 Rule: The chimney system
must terminate 3.0 ft. above the point
where its centerline passes through the
roof AND the chimney must terminate
2.0 ft. above any part of the dwelling
within a 10 ft. radius of the chimney.
Chimney Connector
(Single or Double Wall)
Ash Cleanouts must
have an airtight seal to
prevent weak draft.
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