Vogelzang TR007 - Manual (Page 19)

VGZ-031 / 20120619.1 www.vogelzang.com TR007 PONDEROSA™ / Page 19
1. Atmospheric Pressure and Air Supply
Atmospheric pressure that affects the draft may oc-
cur from outside the structure, inside the structure,
or both. High pressure weather (clear and cold)
usually produces a better chimney draft than low
pressure (overcast and damp) conditions. Negative
pressure can be created inside a home by appli-
ances that expel air from within such as bathroom
vents, range hoods, clothes dryers, and forced air
furnaces. Do not allow such appliances to over-
come the natural draft. Note that newer homes
tend to be built more tightly allowing less make up
air to seep freely in. Negative pressure may be
overcome by opening a nearby door or window. In
extreme conditions of negative draft, the airflow in
the chimney will reverse direction. This is known
as “down drafting.”
2. Environmental Factors
Wind or air deflecting off external objects such
as the roof, neighboring structures, trees, or hills.
These can cause a pressure change in the air sur-
rounding the chimney.
3. Chimney Temperature
The temperature of the chimney is an important
factor in how well it drafts. Warm chimneys draft
better than cold chimneys. This is based upon the
principle that hot air rises while cold air sinks. Hot
gases going up a cold chimney will cool rapidly.
Warm the chimney by allowing a hot fire to burn for
the first fifteen to thirty minutes after starting the fire.
Be careful not to over fire the stove. If any part of
the stove or chimney starts to glow, you are over
firing the stove. Masonry chimneys will take longer
to warm than manufactured chimneys on account of
their greater structural mass. Chimneys that have a
flue diameter larger than the stove outlet take more
heat to warm, thus resulting in a faster cooling of
the hot gases needed to build or maintain draft.
4. Chimney Installation and Maintenance
Confirm that all four minimum chimney height
requirements listed in the Chimney Connection
section of the manual have been met. The physics
that link chimney height with draft creation are vital
to the proper operation of the stove. Failure to meet
each of these minimum requirements will have an
adverse affect on draft. Avoid long horizontal runs
or multiple elbows. Use stove cement to seal joints
in the connector pipe section. Regularly clean the
chimney, connector pipe, rain cap, and spark ar-
restor screen. Creosote build up can reduce the
chimney draw and possibly create a chimney fire.
5. Temporarily Out of Operation
After the fire has burned out, open the air control
to its fully open position. This will allow warm room
air to enter the chimney and keep it as warm as
possible until the stove is used again.
For assistance involving chimney draft issues, con-
tact a knowledgeable licensed heating and cooling
contractor in your area. For questions regarding
manufactured chimney, contact the manufacturer
of the chimney.
NOTE: A DRAFT READING OF 0.05 TO 0.06 W.C.
(WATER COLUMN) IS REQUIRED FOR PROPER
BURNING OF THIS STOVE.
GLASS CARE
CAUTION: DO NOT OPERATE WITH CRACKED
OR BROKEN GLASS.
Periodic cleaning of glass will be necessary to
prevent accumulations of ash. Acidic ash buildup can
eventually etch and weaken glass. Creosote accumu-
lations should burn off during hot fires. The following
usage and safety tips should be observed:
1. Inspect the glass regularly for cracks and breaks.
If you detect a crack or break, extinguish the fire
immediately and contact the manufacturer for a
replacement before re-firing the stove.
2. Do not slam the door or otherwise impact the glass.
When closing doors, make sure that logs or other
objects do not protrude to impact the glass.
3. Do not build fires against (or that might fall against)
the glass.
4. Do not clean the glass with materials that may
scratch (or otherwise damage) the glass. Scratches
on the glass can develop into cracks or breaks dur-
ing operation.
5. Never attempt to clean the glass while the unit is hot;
allow to dry thoroughly before reuse. If deposits are
not very heavy, normal glass cleaners are adequate
using a soft, non-abrasive cleaning pad.
6. Never put substances which can ignite explosively
in the unit. Even small explosions in confined areas
can blow out the glass.
SERVICE HINTS continued . . .
continued on next page