DVS Direct Ventilation System Whole House Fan

High Volume Gable End Fan For Homes and Greenhouses.

Ground shipping within the Continental US only.


No Attic? Sealed Attic? No Problem!

Call in and order today!

DVS Whole House Fan Gable Vent Fan

Tamarack is proud to introduce a powerful (DVS) direct vent whole house fan solution for your home or greenhouse. This DVS Direct Ventilation System whole house fan uses about 1/10th of the electricity of an A/C. Slash your energy bills with a whole house fan custom made for your home.  Sold with a Hardwired 10-speed digital wall control and 12-hour timer.

All units ship on a palette.

  • Proudly Manufactured in the USA
  • All Units Ship On A Palette (Shipping Calculated when ordering)
  • Corrosion Resistant Housing
  • Motorized insulated backdraft damper (R-10) creates an airtight seal and thermal barrier between the outdoors and indoors whenever the fan is not in operation.
  • Outdoor openings must be protected from the elements by louvers, a wall hood, or another appropriate method, which are not included.
  • Installs in Gable End

*Verify Model Type Prior to Ordering ALL DVS  Direct Ventilation Whole House Fan models are a custom-built unit, returns are not allowed for incorrect size ordered. 2-3 weeks lead time to build and ship once ordered.

The DVS Whole House Fan comes in four configurations:

DVS-NF-ND (DVS Whole House Fan no flange no duct)

DVS-NF-D (DVS Whole House Fan with duct no flange)

DVS-F-ND (DVS Whole House Fan flange no duct)

DVS-F-D (DVS Whole House Fan Flange and Duct)

Ducted DVS Direct Ventilation System Whole House Fans are for sealed attics. Non-Ducted DVS Whole House Fans are for homes with no attic.

*CFM rates measured in a controlled test environment. Your results may vary due to building construction.

Storm Louver Option:


DALF~FF-2 inch select 27 x 27 and confirm with the manufacturer prior to ordering stormproof Louver


DALF~FF-2 inch select 36 x 36 and confirm with the manufacturer prior to ordering stormproof Louver


Installation Manual

Click Here To View  and Download Installation Manual PDF


Click Here to View and Download Specifications PDF

Ducted Options Literature

Click Here to View and Download Ducted DVS Literature



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