THERMOROSSI BOSKY 25, Installation, User & Service Manual

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6.5
RECOMMENDATIONS
-Every time you stoke the fire use the riddling tool to move the grate. Move the rod O indicated in
para. 6.2. The air passage through the firebox grate must always be unobstructed.
-Every 10 hours of operation at least or whenever necessary clean the ash pans G and P as
described in paragraph 6.2.
-
Every 2 weeks or whenever necessary clean the internal surfaces of the heat exchanger, the oven
and the door K under the oven.
-Always ensure that the fuel fed into the firebox catches fire normally. Always ensure that this occurs
to prevent dangerous explosions in the firebox caused by the accumulation of unburnt gases. If these
explosions prove to be rather violent the manufacturer declines all responsibility for the mechanical
resistance of the glass and heater parts.
-Adhere strictly to the declared consumption : max. 8.5 Kg /hour for models 25 - F25
, max.10 Kg /hour for models 30 F30.
-
Thoroughly clean the heater and flue at least twice each season
In the unlikely event that the appliance is not operating in freezing conditions the water must be
drained from the boiler to prevent frost damage
THERMOROSSI SPA DECLINES ALL RESPONSIBILITY FOR DAMAGES TO THINGS AND/OR
PERSONS CAUSED BY THE FAILURE TO OBSERVE THESE INSTRUCTIONS
.
7 FLUE
CHIMNEYS basics
An efficient wood burning stove is one of the most effective ways to improve the energy efficiency &
reduce the CO2 emissions in a house. To achieve its optimal performance an efficient appliance
needs an efficient chimney system. The key to a well performing chimney is consistent insulation
along the entire length of the flue without cold spots.
Vacuum .05” WG average.
Solid fuel appliances need class 1 chimneys which are designed to deal with flue gas temperatures
above 260 deg C.
Class 1 chimneys can be of lined, masonary construction or of prefabricated insulated metal
construction.
The job of the chimney is two fold-:
1. To safely remove the products of combustion (SMOKE)
2. To generate suck (VACUUM) to provide the fire with an adequate supply of air.
3. DRAFT (
suck or vacuum the chimney can develop ) depends upon the following-:

THE HEIGHT.

THE POSITION OF THE TERMINAL RELATIVE TO OTHER, LOCAL, OBJECTS

THE DIAMETER.

THE TEMPERATURE OF THE GASSES IN IT. (lining and insulation may come into this)

THE RESISTANCE OF THE INNER SURFACE OF THE CHIMNEY.

THE AVAILABILITY OF ADEQUATE VENTILATION.

THE HEIGHT ABOVE SEA LEVEL
4. Any bend in any part of the chimney or roughness on the internal chimney wall will slow down the
velocity of rising gasses and reduce the effectiveness of the chimney.
5. Any slight reduction in the flue gas temperature will reduce the chimney vacuum or pull, hence
when the stove is slowed down for all night burning, as the flue gas cools down the chimney vacuum
reduces and as the chimney vacuum drops, the stove may well go out. This problem is highlighted
even more during very cold weather when the chimney can cool down even faster.
Minimum draft of 18/20 PASCAL 0.18/0.20 mBAR
BEWARE, no one can guarantee that a chimney will work even after relining has been carried out.
Check out your chimney, look around your locality at other chimneys to see if there is a localised
problem of down draughting.