Dovre SAPPHIRE DV425TR Owner's Manual And Installation Instructions page 42

INSTALLATION INTO AN EXISTING MASONRY CHIMNEY, cont.
Step 7.
If additional lengths of flex liner are needed
to span the chimney height, use a flex coupler to
connect the pieces of flex liner together. Connect
the flex to the coupler by using four (4) sheet metal
screws for each side (Figure 24).
Step 8.
Secure the top adapter to the flashing. Use
three (3) sheet metal screws through the side of the
top adapter into the flange on the flashing (Figure 25).
Twist lock the high wind termination cap (SDV #991)
on to the top adapter.
02/01
VERTICAL INSTALLATION, cont.
(USA ONLY)
DV425TR DIRECT VENT ROOM HEATER
Fig. 24
Fig. 25
Page 42
FLEX LINER
FLEX COUPLER
SHEET METAL
SCREWS
HIGH WIND
TERMINATION CAP
TOP ADAPTOR
(3) SHEET METAL
SCREWS
FLASHING
250-5533