28/75
circulation.
Note about the minimum fill and heating the stove!
The tub stove must never be lighted when the tub is empty or not full! Heating a half-
empty tub will lead to melting the stove! You must not start emptying the tub before the
fire and embers have burnt out completely. Heating a half-empty tub will lead to melting
the stove!
The water is layered when it heats up and, therefore, it needs to be mixed so that the actual
temperature can be found. The optional cover should be in place when heating the water.
Do not leave the water unattended, in case there is a risk of subzero temperatures. The bottom
plugs and exhaust valves need to be left open, so that any water collected in the tub can be
discharged and it will not freeze at subzero temperatures.
You can use 19 mm spanners for the outer edge of the hoop tighteners. These
tighteners are used for adjusting the hoops. You do not usually need to adjust
these in a plastic tub. If the side planks dry and shrink you can adjust the hoops
accordingly. Check that the planks are situated nicely before tightening so that they will not bend
out or in between the hoops and actual tub.
LIGHTING AND HEATING THE STOVE
Use smaller and dry kindling wood for igniting the fire and then add bigger pieces as needed every
10 to 15 minutes. Maintain the fire in the stove during heating, so that the wood will burn properly
and the tub will heat with maximum power. If the fire is too small, the heating time becomes
remarkably longer.
Empty ashes from the stove after each use, so that grates or air slides will not remain covered by
air slides
the ashes, as it remarkably shortens their life. These grates,
and other inner parts of the
chamber are consumables and not included in the guarantee.
Use only small, dry firewood in the stove. The use of larger and damp firewood may double the
heating time and it will also generate a lot of smoke. We do not recommend black alder because it is
sootier than other wood. It is advisable to adjust the air intake of the stove according to the type
and size of the wood, so as to reduce the amount of smoke.
Use any lighter fluid according to the instructions. Do not use any other fuels for lighting. We
recommend lighting pieces, e.g. Burner paraffin bags.
Cold water and warm air (temperature difference/air humidity) often
cause condensed water in the ash collector. Therefore, the stove is not
leaking although there is some water in the furnace. You can suspect a
leakage only if the water level is going down.
The use of CUBE stoves is as easy as using any other normal furnace. The
draught can be adjusted with a grate in the mouth hatch. Loosen and
tighten the fastening on the button by turning it before you move it and
tighten it to the desired position.
The firebox of a MACU stove has fixed air scoops that cannot be adjusted.