Rinnai Advance Operation And Installation Manual page 19

Flueing - General Guidelines
Every appliance requires a flue system that will draw effectively and clear flue 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 for the Reflection is listed below. These must
be read and modified as necessary with reference to the particular installation.
Flue Terminal Must be compliant with 'Clearances Required for Flue Terminals' from NZS
Locations 5261:2003
Minimum Flue This is required for adequate draw and prevents spill-back of combustion
Length products which can cause safety sensors to shut down the fire.
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Maximum Flue Rinnai recommend a maximum flue height of 8m.
Length
Flue Systems For new fireplace installations a Rinnai Zero Clearance Box and Flue kit is a
mandatory requirement to meet warranty conditions.
For masonry installations, to ensure adequate draw, Rinnai strongly
recommends the use of a Rinnai Flexiliner Flue System. Failure to meet this
installation criteria may result in an unsafe situation. Installation without a
flexiliner flue is permissible as long as the chimney has been checked for
soundness and ability to achieve a good draw.
Shared Flues Gas appliances must not be connected to a chimney or flue serving a
separate solid fuel burning appliance.
Flue Cowl To ensure products of combustion are cleared, adequate clearance from the
Clearance building is required. The following guideline is recommended.
Flue cowl should have a 500mm clearance from any part of the building.
This also applies to steeped and pitched roofs which should be 500mm clear
of the ridge line as displayed below.
Lesser clearances may provide perfectly adequate flue systems depending
on the installation. Minimum clearances are shown in NZS 5261.
Rinnai New Zealand
3.6m vertical
1.2m of vertical flue is required before any bends or offsets
500mm
9
500mm
Reflection: 03-08