Product Manual
HeatPack Furnace Installation and Operation Manual
52
10.7 Prolonged power outage
To reduce the risk of overheating during a prolonged power outage (more than 10
minutes), it is recommended damper is closed. If your furnace is equipped with the
optional filter, remove the air filter to improve the circulation of air around the combustion
chamber of the furnace. Do not load the furnace more than 50 percent of its capacity to
prevent the risk of overheating,
11 Maintaining your wood heating system
11.1 Furnace maintenance
Your new furnace will give many years of reliable service if you use and maintain it
correctly. Some of the internal components of the firebox, such as firebricks, baffles and
air tubes, will wear over time under intense heat. You should always replace defective
parts with original parts (see 13 - Exploded diagram and parts list) For firing each load
hot to begin a cycle as described above will not cause premature deterioration of the
furnace. However, letting the furnace run with the air control fully open for entire cycles
can cause damage over time. The hotter you run the furnace throughout burn cycles, the
more quickly its components will deteriorate. For that reason, never leave the furnace
unattended while a new load is being fired hot.
11.1.1 Ash removal
Ash should be removed from the firebox every two or three days of full time heating. Do
not let the ash build up in the firebox because it will interfere with proper fire management.
The best time to remove ash is after an overnight fire when the furnace is relatively cool,
but there is still some chimney draft to draw the ash dust into the furnace and prevent it
from coming into the room.
After ashes have been removed from the furnace and placed in a tightly covered metal
container, they should be taken outside immediately. The closed container of ashes should
be placed on a non-combustible floor or on the ground well away from all combustible
materials pending final disposal. Ashes normally contain some live charcoal that can stay
hot for several days. If the ashes are disposed of by burial in soil or otherwise locally
dispersed, they should be retained in the closed container until all cinders have thoroughly
cooled. Other waste shall not be placed in this container.
NEVER STORE ASHES INDOORS OR IN A NON-METALIC CONTAINER OR ON A
WOODEN DECK. ALWAYS LEAVE THE CONTAINER ON A NON COMBUSTIBLE
FLOOR.
11.1.2 Cleaning door glass
Under normal conditions, your door glass should stay relatively clear. If your firewood is
dry enough and you follow the operating instructions in this manual, a whitish, dusty
deposit will form on the inside of the glass after a week or so of use. This is normal and
can be easily removed when the furnace is cool by wiping with a damp cloth or paper
towel and then drying. Never try to clean the glass when the furnace is hot.
In spring and fall the furnace will cycle less often. You may see some light brown stains
forming, especially at the lower corners of the glass. This indicates that the combustion
has been incomplete and some of the smoke has condensed on the glass.