HITZE ALBERO, Operation And Installation Manual, Page: 43 / 180

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• the housing should be made from non-flammable materials;
• distance between the insulation materials and the insert should be at least 10 cm;
• there should be a warm air outlet vent in the housing, positioned 80cm from the
ceiling (in the case of flammable materials);
• during regular use, the housing of the fireplace extends (due to the heat), therefore
there should be tiny gaps between stone, marble or ceramic elements;
• preferable insulation material should be resistant to temperatures over 500⁰C;
• preferably, no insulation should be provided for the flue (it will ensure more effective
dissipation of heat into the room);
• the housing cannot lean on the fireplace;
• ·the thickness of the insulation depends on the thermal conductivity coefficient λ (the
ability of a material to conduct heat) and heat resistance of a given material;
• in the housing of the insert, there should be a cold air inlet vent (at the bottom of the
encasing) and a warm air outlet vent;
The λ coefficient is specified by the manufacturer of the insulation, e.g. for mineral
wool it is 0.035-0.045. The lower the λ coefficient, the better the insulation (“thermal
insulation in the room”)
Fig. 8. Standard fireplace construction (all dimensions in Fig. In [cm]) – page 162.
The thickness of the insulation is calculated in accordance with the formula:
g = R · λ
where:
g – thickness of the insulation (partition) [m];
λ – thermal conductivity coefficient [W/m·K];
R – coefficient of thermal resistance of a layer of material [m²·K/W].
For materials with thermal resistance of , with λ=0,035 and R=2, the thickness of
the insulation layer is 0.07 m i.e. 7 cm.
Tab. 1. The surface of the inlet and outlet vents in the insert housing - page 128.
5. START-UP AND USE
After the fireplace insert has been mounted and connected to the chimney, the
first start-up of the fireplace must be performed by an installer or a qualified service
technician.
As part of the start-up procedure, the installer should show the User how to operate the
fireplace correctly. The installer is obliged to refuse to put the fireplace into use if he or
she finds any assembly-related irregularities which make it unsafe to use. A correctly
performed start-up should be confirmed in writing in the guarantee card.
5.1. GETTING READY FOR THE START-UP
Series: ALBERO, HST, STMA, ARDENTE,
Before lighting the fireplace for the first time, it is necessary:
• to remove any labels, paper stickers and accessories from the body of the insert or
hearth to eliminate the risk of fire; the same applies to transport safety devices;
• to check if the deflector/s, ceramic fittings are mounted correctly and were not
dislodged from their correct position during installation (any discovered mounting
errors must be corrected). Non-removal of such errors may hinder proper functioning
of the fireplace insert. In the case of inserts with multi-pane glass doors, it should be
checked if particular glass panes did not become loose during transport or use;