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out into the room. Ashes almost always contain live embers that can stay hot for days and which
release carbon monoxide gas.
Ashes should be placed in a tightly covered metal container. The container must be
placed on a non-combustible floor or on the ground well away from all combustible
materials. Ashes almost always contain live embers that can stay hot for days and
which release carbon monoxide gas. If the ashes are disposed of by burial in soil or
otherwise locally dispersed, they should be kept in a closed metal container until
they are completely cooled. No other waste should be placed in this container.
NEVER STORE ASHES INDOORS OR IN A NON-METALLIC CONTAINER
OR ON A WOODEN DECK.
CENDRES
ASHES
5.6
Air Intake Control
Once the firewood, firebox and chimney are hot, air intake can be
reduced to achieve a steady burn. As the air intake is reduced, the
burn rate decreases. This has the effect of distributing the thermal
energy of the fuel over a longer period of time. In addition, the flow
rate of exhaust through the appliance and flue pipe slows down,
which increases the duration of the energy transfer of the exhaust
gases. As the air intake is reduced, the flame slows down.
If the flames diminish to the point of disappearing, the air intake
has been reduced too early in the combustion cycle or the wood
used is too wet. If the wood is dry and the air control is used
properly, the flames should decrease, but remain bright and stable.
On the other hand, too much air can make the fire uncontrollable, creating very high temperatures
in the unit as well as in the chimney and seriously damaging them. A reddish glow on the unit
and on the chimney components indicates overheating. Excessive temperatures can cause a
chimney fire.
5.7
Fire Types
Using the air intake control is not the only way to match the insert heat output to the desired
temperature in the house. A house will need far less heating in October than in January to
maintain a comfortable temperature. Filling the firebox full in fall weather will overheat the space.
Otherwise, the combustion rate will have to be reduced to a minimum and the fire will be smoky
and inefficient.
Here are some suggestions for building fires suitable for different heating needs.
5.7.1
Flash Fire
To build a small fire that will produce a low heat output, use small pieces of firewood and load
them crisscross in the firebox. The pieces should only be 3" to 4" in diameter. After raking the
coals, lay two pieces parallel to each other diagonally in the firebox and lay two more across
them in the other direction. Open the air control fully and only reduce the air after the wood
is fully flaming. This kind of fire is good for mild weather and should provide enough heat for
up to four hours. Small fires like this are a good time to use softer wood species and avoid
overheating the house.
Installation and Operation Manual - Destination 2.7 Insert
Page 21
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