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Energysaver flueing guidelines
Every Energysaver heater requires a flue system that will draw effectively and clear products safely
under all potential wind and climatic conditions. It is the responsibility of the installer to ensure
that the appliance is provided with an effective flue. Some guidelines to assist with flue design
are in this guide. These must be read and modified as necessary with reference to the particular
installation.
All Rinnai Energysavers must be installed with an approved Rinnai flue system.
Flue clearance to combustibles
Energysaver flue components, except
the elbow section of the ESKIT03, and
ESELBOWB, have zero clearance.
The ESKIT03 and ESELBOWB require a
minimum clearance of 25 mm from combustible
materials.
Elbow section
Condensate trap
A condensate trap is required for all vertical
installations to ensure condensate generated
during combustion is trapped and prevented
from entering the chamber of the heater.
2° fall to wall terminal
For direct, sideways, and down-and-out
installations there must be a continuous fall
of 2° to the wall terminal (equates to 20 mm
per metre). The Energysaver A/AA direct
mushroom flues have an inbuilt 2° fall, and the
wall plate of the ESDFK kit has a 2° offset.
Flue terminal locations
Must be compliant with AS/NZS 5601.1:2013.
•
Do not flue into natural draft flues or
fireplaces
•
Do not flue into other rooms, roof spaces,
or under floor spaces
The flue terminal must be positioned away from
flammable materials.
Keep snow and other items, such as outdoor
furniture well clear of the flue terminal at all
times.
Flashings
Flashings are not part of the flue kit and must
be specified.
Vertical flue cowl clearance
To ensure products of combustion are cleared,
adequate clearance from the building is
required.
The flue cowl should have a 500 mm clearance
from any part of the building. This also applies
to steeped and pitched roofs where the flue
cowl should be 500 mm clear of the ridge line.
An adequate flow of fresh air must exist around
the flue cowl following installation. Minimum
clearances are shown in AS/NZS 5601.1:2013.
Minimum clearance
500 mm to nearest
part of roof
Maximum flue length and number of bends
Maximum flue length
Maximum number of bends = 3
One 90° bend equals 1 m. For every 90° bend
the overall length must be reduced by 1 m. For
example, if an installation has three 90° bends,
the maximum flue length can be 6 m.
The flue transition connection for the ESKIT03
and ESELBOWB is counted as a 90° bend.
= 9 m
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