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1. Important initial information for the Technician
1.3 Flue
A properly dimensioned flue is required for optimal functioning of the combustion system. Measurement of the
dimensions must follow EN 13384-1. See the Technical data section for values required for this calculation.
Please note that in the lower performance range, flue gases may be below 90 °C. Therefore, thermally-insulated
flues meeting thermal transmittance coefficient Group I requirements according to DIN 18160 T1 or other appro-
priate, officially approved moisture-resistant exhaust systems may be connected to the hearths.
The flue gas system must display at least the following classification:
Temperature class: T400 = nominal operating temperature 400 °C
Soot fire resistance class: G = flue gas system with soot fire resistance
Corrosion resistance class: 2 = suitable for unprocessed wood fuels
Information!
Frequently, overhaul of existing systems involves oversized flue cross-sections or flues not desig-
ned for lowtemperature operation. We suggest an evaluation by the local building inspector before
installing the boiler system. In this way appropriate modifications can be made to the flue before
system installation (see technical data for flue calculation values).
Attention!
Energy-saving intake regulators or explosion flaps are not allowed to be installed in the living area.
Comply with the statutory regulations and directives.
1.4 Fuel storage
1.4.1 Automated pellet supply
The pellets can be stored in bulk in a storage room, sheet steel tank, fabric tank or a buried tank. See the separate
“Pellet storage room” planning documents for planning information about this pellet storage.
The requirements for pellet storage are defined in ÖNORM M7137 for Austria or the Firing Ordinance FeuV for
Germany.
The pellets must be stored in a dry place in order to achieve trouble-free operation with optimum combustion
and at maximum efficiency.
Information!
The pellets must be transported carefully into and out of the storage room so as to maintain good
pellet quality.
The FireWIN can be operated with 1 probe (sheet steel tank solo probe), 2–3 probes or with up to 8 probes.
The maximum transport length or height for a pellet feed system is 25 m horizontally with a 6 m vertical dif-
ference between the highest and lowest levels of the hose. These maximum values require a stable electricity
supply (min. 220 VAC under load).
1.4.2 Manual pellet supply
Pellets in bags must be stored in a dry place.
Please observe the local regulations on storing fuel.
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