2.3.2 Installation in a newly built chimney piece
• The OPTIMA 80 can optionally be equipped with a convection set. This extra convection set
increases the convection air volume, which will increase the yield of the hearth.
• Ventilate the chimney piece by applying ventilation grids at the upper and lower side. This will cool
the chimney piece, which will decrease the risk of cracking.
OUTFLOW
CONVECTION AIR
INFLOW
CONVECTION AIR
INFLOW
CONVECTION AIR
INFLOW
CONVECTION AIR
INFLOW
CONVECTION AIR
INFLOW
COMBUSTION AIR
INFLOW EXTERNAL COMBUSTION AIR
INFLOW
COMBUSTION AIR
INFLOW
COMBUSTION AIR
OUTFLOW
CONVECTION AIR
OUTFLOW
CONVECTION AIR
OUTFLOW
CONVECTION AIR
OUTFLOW
CONVECTION AIR
OUTFLOW
CHIMNEY PIECE
AERATION
INFLOW
CHIMNEY PIECE
AERATION
OUTFLOW
CONVECTION AIR
OUTFLOW
CHIMNEY PIECE
AERATION
INFLOW
CHIMNEY PIECE
AERATION
OUTFLOW SMOKE GAS
Figure 2.1: Optima 80 in a newly built chimney piece
• If the hearth is equipped with convection ventilators, provide an earthed power supply.
• Cover the hearth on the upper, back, left and right side with approximately 10cm thick ceramic
isolation wool.
• Level the hearth.
• The front of the chimney piece must be kept a few centimeters free from the hearth.
• Connect the hearth directly, gas leak-proof to the chimney. The diameter of the smoke channel may
by no means be smaller than that of the hearth’s smoke channel.
• The front of the hearth can be finished with a 3-sided frame, a 4-sided frame (see paragraph 2.3.3)
or frameless. The frameless finish is not preferrable. Through expansion and shrinkage during the
warming-up and cooling-down of the hearth, there is a chance that the of the chimney piece
against the hearth will crack.
• If the hearth is placed against a supporting wall or an inflammable wall, an air cavity of at least
20mm must be maintained. In front of this cavity a brick or foamed concrete separation wall of at
least 100mm must be placed.
• If the hearth is placed against a not supporting and non-inflammable wall, no supplementary air
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