MCZ Forma Wood 115 - Manual (Page 10)

INSTALLATION AND USE MANUAL
Chapter 2
page 10
Theoretical notions for installation Technical service – MCZ S.p.A. all rights reserved - Reproduction prohibited
2.5.1. Examples of flue pipes
Square or rectangular section flue pipes must have rounded internal
corners with radius not less than 20mm. For the rectangular section,
the ratio between internal dimensions must be ≤1.5.
The sections/lengths of the flue pipe shown in the technical data table
are guidelines for correct installation. Any alternative configurations
must be suitably sized in accordance with EN13384-1.
The smoke duct should be equipped with a solid material collection
chamber at the mouth of the smoke duct to be easily opened with an
airtight door.
IMPORTANT !
In the event of doubt on your chimney flue operations or
that its dimensions are different from those recommended,
we highly suggest an authorised MCZ technician inspect and
measure chimney flue performance (micro-gauge
measurements)
MCZ s.p.a. shall not be held liable for poor operation of the
fireplace stove that is due to a flue pipe of improper size or
installation that does not comply with provided
requirements.
AISI 316 stainless steel
flue
pipe with dual
chamber insulated with
ceramic wool or equivalent
resistant to 400°C.
EXCELLENT
Flue pipe in refractory brick
with insulated double wall and
external coat of cement mix
lightened with honeycomb
material such as clay.
GOOD Traditional square section
clay flue pipe with insulating
hollow inserts.
GOOD Avoid flue pipes with internal
rectangular
sections whose
larger side is double the smaller
such as 20x40 or 15x30.
AVERAGE