Harman XXV Owner's Manual page 8
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Also See for XXV:
- Installation & operating manual (44 pages) ,
- Owner's manual (44 pages) ,
- Owners manual care and operation (35 pages)
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Outside air flex pipe
8
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Adjustable from 4
112"
to
10
518" wall thickness
Fig. 8
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8
Outside Air
Here are four benefits of outside air:
1. Having air introduced from outside the living area
boosts overall efficiency.
2. It eliminates draft problems that can occur in tight
homes.
3. It reduces smoke spillage in the event of a power
failure.
4. It allows your vent termination to be as close as
18" from windows or doors.
Outside air is optional except in mobile
homes and where building codes require. The
benefit of outside air is mainly noticed in small, very
tight, houses.
To install outside air use 2 318" I.D. non-com-
bustible llex pipe. There is a break-away hole on the
rear panel of the XXV stove which must be removed
before connecting the flex pipe. The pipe should be
run outside and terminate to the side or below the
vent pipe outlet so the flue outlet is more than 12"
from the inlet cover. The maximum length run of this
pipe is 15 feet. If a longer run is needed the size
must be increased to 3". Inlet cover part number 1-
10-08542 should be used to keep birds, rodents,
etc.out of the pipe unless the Harman wall
passthrough is being used.
HRV
When installing in a house with a Heat Reclaim-
ing Ventilation System (HRV) be sure the system is
balanced and is not creating a negative pressure in
the house.
Direct Vent Wall Passthrough
The Harman Direct Vent Wall Passthrough
(Part # 1-00-677077) makes installing your Harman
Pellet Stove with outside air a lot easier. It is made to
fit walls from 4 112" up to 10 118" thick with a square
opening of 6" to 6 112".
8
XXV Pellet Stove
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