Chimney to be built / New flue
T h e f l u e m u s t c o m p l y w i t h C u r r e n t B u i l d i n g
Regulations. If in doubt, consult your Dealer or local
Building Inspector.
- The appliance must not support the weight of the flue.
- It must be distant from any combustible material
(walls, cross members)
- It must permit an easy sweeping.
2.4. Chimney connector
The connection to flue must be carried out according to
local building regulations.
- The connector pipe must be approved for installation
with combustion products (
either 24 ga. Black painted
or blued steel or 316 grade 20 ga. Stainless steel or
1 mm vitreous enamelled steel
).
- Pipe diameter must not be less than the appliance
spigot diameter. If there is no other solution, the
reduction can not be more than one diameter lower than
the flue spigot and be situated as distant as possible
from the flue connection of the appliance.
- The connection can be done either on a flue at the
ceiling level, or with an elbow to a flue starting from the
floor,
-
The join between the connection pipe and the
stovepipe, and the flue, must be leak tight. For the
premises equipped with a mechanical controlled
ventilation, the airtightness has to prevent the
exhauster drawing out the smokes from the exhaust
gas pipe.
- The connection pipe and any draught stabiliser must
have access for cleaning. Foreseen an
inspection
trap
(500 x 350 mm) in the hood to allow access to the
flue.
6
Technical manual “1248”
“HEKLA” - ref. 634 07 46 & 634 07 47
Installation instructions
Figure 4 - Flue offset
Figure 5 - Chimney constructed around insert
1
- Possible tubing with venthole in case existing pipe
is not compatible.
2
- D e c o m p r e s s i o n h o l e s t o v e n t i l a t e t h e
space between deflector and ceiling.
3
- Deflector to guide convection air.
4
- Flue in chimney, flue tile or insulated metallic pipe.
5
- Warm air diffusion grate (minimum 500 cm
3
).
6
- Insulation (rockwool)
7
- Protection hood for girder.
8
- Frieze under girder, brick or fireproof concrete.
9
- Convection air-inlet
Co
nvection circuit :
Ensure that the convection air can enter freely under
and all around equipment, circulate around the
firebox (on the sides and behind) and escape
through diffusion vents in the hood (minimum
500 cm
2
). Good circulation of convection air allows
for optimum heat exchange with the cast walls of the
firebox without any local overheating as well as a
good ventilation of the hood.
10
- Base (or stake), with correct levelling, ventilated,
on a solid and reinforced ground.
11
-
Inspection hatch (500 x 350 mm)
to allow
access to connection pipe, draught regulator,
pressure points, etc...
D
- Safety distance :
minimum of 16 cm from the interior wall of the pipe
(do not insulate the non-combustible part around the
pipe across the ceiling.
