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The duct for this exhaust fan is properly routed through the roof and the duct is insulated

The duct for this exhaust fan is properly routed through the roof and the duct is insulated

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This exhaust fan duct is properly insulated and is properly vented through the roof

This exhaust fan duct is properly insulated and is properly vented through the roof

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Wrong – These flex ducts are pulled taut, which is correct but they are inadequately supported with straps that are spaced too far apart and are too tight causing pinching of the insulation and turns are sharp rather than gradual.

Wrong – These flex ducts are pulled taut, which is correct but they are inadequately supported with straps that are spaced too far apart and are too tight causing pinching of the insulation and turns are sharp rather than gradual.

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Kitchen Exhaust Retrofit Duct Guide

Guide

Guide describing the retrofit of kitchen exhaust systems, including duct sizing and routing considerations.

Existing HVAC System Upgrade or Expansion

Guide

Guide describing how to upgrade or expand an existing HVAC system.