HWAM Autopilot IHS 3420, User Manual

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Banned fuel types 
It is not allowed to stoke a fire with the following: printed matter, plywood, plastic, rubber, fluid fuels, 
and rubbish such as milk cartons, lacquered wood or impregnated wood and fossil fuels. The reason that 
you should not apply any of the above is that during combustion they develop substances that are health 
hazardous and harmful to the environment. These substances could also damage your wood burning stove 
and chimney, rendering the product warranty void.

Storage of wood
The wood’s water content of a maximum of 20% is reached by storing the wood for a minimum of one 
year, preferably outdoors in an open shed exposed to sun and wind.
The wood must be dry (max. 20% water contents) before it is stored indoors. It is recommended that 
kindling wood is stored indoors for a couple of days prior to use.

Recommended dimensions 
The dimensions of the fuel are important to good combustion. The dimensions should be as follows: 

Fuel type

Length in cm

Diameter in cm

Wood for kindling a fire (finely chopped)

25-30

2-5

Chopped wood

25-30

7-9

Special lighting guide for wood-burning stoves with soapstone cladding
Soapstone is a natural product, which needs to get used to the changes in temperature. For this reason 
you should be very careful the first times you light up the stove. It is recommended that you follow the 
procedure outlined below:
1. The First Stoking (Soapstone)
Place two pieces of wood (5-8 cm in diameter) horizontally in the bottom of the combustion compart-
ment. Place 5-8 pieces of kindling randomly on top. Place two fire-lighters in between the top layers of 
kindling. Press the remote control twice to activate the symbol of lighting up. Light up the fire-lighters and 
close the stove door. Adjust the temperature selection mechanism on the remote control to level one. 
Let the fire burn out and do not restoke even if there is a restoking alarm. When the fire has died out 
completely, the door must be opened and stay open while the stove cools down to room temperature. 
2. The Second Stoking (Soapstone)
Place two pieces of wood (5-8 cm in diameter) horizontally in the bottom of the combustion compart-
ment. Place 5-8 pieces of kindling randomly on top. Place two fire-lighters in between the top layers of 
kindling. Press the remote control twice to activate the symbol of lighting up. Light up the fire-lighters 
and close the stove door. Adjust the temperature selection mechanism on the remote control to level 
two. When there is a restoking alarm, you should restoke. Fill the combustion chamber half way up with 
dry wood of a diameter of approx. 7-9 cm. Let the fire burn and let the stove cool down to room tem-
perature before the next lighting. 
3. The Third  Stoking  (Soapstone)
Repeat the second stoking, but use more wood this time and adjust the temperature selection on the 
remote control to level three. Let the fire burn and allow the stove to cool down after the fire has died out.
Restoking:
Follow the general instructions, see the sections “Lighting the stove” and “Stoking”.

Lighting Up
A successful combustion process requires that the wood is lit in the right way. A cold stove and a cold 
chimney challenge the combustion process. It is important to achieve a high flue gas temperature quickly. 
Only at temperatures around 350° C will environmentally friendly combustion take place.