Methods Of Exhaust Ducting; Method 1 - Natural Draft - Beech ovens REC Series Installation And Operation Manual

Beech Ovens
RND-REC-RGO Manual (R1)

Methods of Exhaust ducting

The exhaust system is an integral part of the oven‟s safe and reliable operation. It is
strongly recommended that all exhaust ductwork be carried out using a qualified and
experienced trade team with knowledge of local authority requirements. All ductwork will
require access for cleaning and require regular maintenance.
The following methods are to be used ONLY as a guide.
There are typically five (5) methods of exhaust ductwork for a Beech Oven. These
methods are using:
 Natural Draft – Dedicated system
 an Exhaust Fan – Dedicated system
 an Existing Exhaust System – Shared system
 a Spray Filter
 Canopy method - Preferred
Method 1 – Natural Draft
Dedicated flue less than 15m in length with less than 3m
horizontal. Normally this system is used for Wood Only ovens
though if used with Gas, a special test should be performed to
ensure that no spillage occurs. Contact Beech Ovens Technical
Support for more information.
Flue size 300mm x 300mm or equivalent
dimension). The integrated system damper is designed to
control the draft. Access to the system damper is required to
allow small adjustments for varying conditions (In some
instances a fan may need to be fitted later if natural draft
does not work effectively or reliably.) Use of a weatherproof
vertical discharge capable of minimizing the effect of wind is
recommended. Allow access to duct for periodic cleaning.
Refer to local regulations for discharge and installation
requirements.
NOTE: Because of the residual build-up in the flue, it is highly
recommended that the flue be inspected after three (3) months and a
cleaning schedule be implemented as required.
Failure to properly maintain the flue, may result in flue failure and
potential fire hazard.
Page 28
technical@beechovens.com.au
28/07/2011 (C)
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