United States Stove Company PELLET 5660(I) - Manual (Page 28)

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Installation into a Masonry Fireplace:
1. Your chimney must be inspected by a certified
chimney sweep or installer to determine its
structural condition.
2. Measure amount of venting required to top chimney
plus 14” to ensure the termination is adequate
distance above the roofline.
3. The first 5’ of exhaust will be Simpson Dura Vent
pellet stove flex vent; the remainder uses rigid pipe.
For each joint subtract 1‐1/2” to allow for the
overlap. You may need an adjustable length section
to achieve the correct height. The air intake may be
2” aluminum flex vent.
4. Assemble the first rigid section of exhaust pipe to the
flex vent pipe insuring that the “UP” arrows shown
on the pipe labels are pointing up. Connect sections
and twist to lock. Repeat the process for the
remainder of the pipe sections and lower the
assembly down the chimney. Lower the intake and
exhaust pipes below their normal position to
connect the pipe to back of heater. Tie a line to the
top section of venting to pull it back up to the correct
position.
5. Connect to the exhaust of the stove by installing a
pipe adapter to the exhaust fan and either a 90º
elbow or a clean out tee with cap. The air intake can
be attached to the heater with a hose clamp.
6. Connect the heater to the coupling on the bottom of
the exhaust flex vent and twist to the locked
position. Push the heater into the fireplace to its
final position.
7. From the top of the chimney, pull the vent system up
to the desired height.
8. For the exhaust termination of the pellet vent use a
tall cone flashing and a storm collar. This requires
14” of pipe above the top of the masonry chimney.
Pull the pipe up through the flashing to the desired
height and mark where the storm collar will go. Slip
the storm collar down over the pipe and fasten it to
the pipe with a 1/4” stainless steel sheet metal
screw. The storm collar will then support the entire
exhaust vent system.
9. Install the air intake vent through the chimney cap
by cutting a hole and install cap as shown or attach
air intake vent to a flashing and cap. The chimney
top must be properly sealed to prevent rain and or
snow from entering the chimney.
10. Install the cap and seal around the joint of the storm
collar and any other joints that are visible.
Perform these instructions in reverse if the removal of this appliance is ever needed for maintenance or
repair.