User's manual

17
Fuelling with coal, wood briquettes or pet coke
The stove is not approved to use coal or pet coke as a fuel. However, wood briquettes can be used to
fuel the fire and should be placed on the embers produced by the burned wood.
Be aware that using fuels other than wood, will cause soot to form on the glass pane.
Operating the heat compartment damper - HWAM 3130
There is a damper at the back of the stove between the top plate and the heat compartment that opens
and closes the flow of convection air in the heat compartment. The supply of convection air can be
opened by moving the damper to the left and closed by moving the damper to the right.
We recommend that the convection damper is kept closed when fuelling the stove in order to heat
up and thereby store heat in the heat storage stones in the heat compartment as rapidly as possible.
Keeping the convection damper closed retains the heat stored in the heat storage stones as long as
possible. When the damper is opened, the heat from the heat storage stones in the heat compartment
will rapidly be transferred to the room.
Firing in gEnErAl
Rapid or fierce heat
Rapid or fierce heat is obtained by burning many small pieces of wood.
Maximum amounts of fuel:
The maximum allowed amount of fuel per hour is:
Wood: 2.4 kg
If these limits are exceeded, the stove will no longer be covered by the factory guarantee, and it may
also become damaged due to excessive heat. The stove has been approved for intermittent use.
Typical re-firing interval
Typical re-firing interval at nominal performance
Wood: 65 min
Long burning times
You achieve the slowest combustion by setting the desired room temperature at level 0. At this level
the combustion takes place with the lowest possible flue gas temperature and the ember phase will
be drawn out as long as possible.
How to achieve the best combustion
The HWAM Autopilot IHS
TM
is purposely designed to generate the cleanest and the most economical
combustion. A good combustion is achieved when the fire gets the right amount of oxygen supply at
the right time and place in the combustion chamber. The HWAM Autopilot IHS
TM
allows for variations
in external circumstances. Nevertheless, it is important to use clean and dry wood (humidity approx.
16-18%). Read more on www.hwam.com.
Cleaning the glass
We recommend wiping the glass after a fire. This is best done using a paper towel.
Types of fuel
The stove may be damaged by very high temperatures and the glass may turn white, for example. This
can be avoided by never allowing the stove to burn with the ashpan open and taking great care with
types of fuel that develop excessive heat, such as briquettes. If the flue gas temperature exceeds 580
o
Celsius, the HWAM Autopilot IHS
TM
will revert to safety adjustments and automatically turn down