Technical Guidance Document #035

Recently there has been some confusion due to the fact that a major manufacturer of combination ovens states in their installation instructions “The exhaust hood must protrude 300-500 mm [12 – 20 inches] over the front of the unit”. Normally the manufacturer’s instructions take precedent over any other requirements and the purpose of this document is to give guidance on best practice on this subject.

Prepared July 2021

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Guidance Document No 35 - Installing Combination Ovens Under Extraction Canopies