HITZE ALBERO, Operation And Installation Manual, Page: 40 / 180

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• to facilitate the assembly of the fireplace in hard-to-reach places, the ceramic lining
(shielding the hearth) can be removed; after the assembly, every element made of
ceramic concrete should be correctly placed in its intended location.
The order of carrying out work on the assembly of the insert:
• preparation of the place where the insert is to be placed, checking the bearing
capacity of the floor;
• connecting the insert to the chimney and performing the air supply;
• using the insert and observing if there are any defects and irregularities (about 2
weeks);
• housing assembly.
4.2. RECOMMENDATIONS CONCERNING THE FLOOR:
• check the bearing capacity of the floor before the installation (whether it meets the
load capacity conditions for a given type of device depending on its weight);
• the floor must be made of non-flammable material with a minimum thickness of 30
cm; a safety area of least 50 cm must be ensured in front of the fireplace door, and of
at least 30 cm from the edges of the door.
4.3. CHIMNEY DUCT
The fireplace insert must be appropriately selected to match the cross section of the
combustion gas duct (flue pipe) and the height of the flue.
The cross-sectional area of the flue and of the combustion gas duct is calculated in
accordance with the following formula:
F=0,003 x Q ⁄ √h
[m
2
]
where:
F – cross-sectional area of the flue and of the combustion gas duct [m
2
];
Q – rated thermal input [kW];
h – the height of the chimney [m].
In accordance with the applicable provisions of law, the flue may not be smaller than
14x14cm or its diameter must be 15cm. Inserts with a higher thermal input require a
flue with a larger cross section. The cross section also depends on the height of the
chimney.
The fireplace should be connected to the combustion gas duct or the vertical duct
in accordance with the applicable national standards.
The chimney draught should be as follows:
- minimum draught – 6 ± 2 Pa;
- MEDIUM, RECOMMENDED DRAUGHT – 12 ± 2 Pa;
- maximum draught – 15 ± 2 Pa.
NOTE: To ensure the correct functioning of the insert, there must be a correct
chimney draught in the connector of the flue pipe:
• the insert will not function properly if the chimney draught is not sufficient,
resulting in excessive soot deposits on the glass and in combustion gas ducts
and reducing the total thermal power of the insert (due to which combustion
gases may escape to the room);
• if the draught is too strong, the burning process may be too intense, causing
high consumption of fuel and resulting in permanent damage of the insert.