HV3400 R50 Ghost Whole House Fan


This powerful fan moves up to 3,400 CFM and is equipped with R50-insulated doors that seal automatically when not in use. Read more below.


The R50 Ghost is a powerful fan that mounts in the attic and runs for pennies a day compared to AC. It rapidly cools your entire home whenever the outdoor air is cooler than the air inside your home. It does this by pushing out hot, stuffy air through attic vents or gables while pulling cool, fresh air in through open windows.

Like all the Tamarack HV Series whole house fans, the HV3400 Ghost R50 has a unique design that’s unlike any other brand on the market. Its R50 insulted doors seal automatically when the fan is not in use, therefore keeping cool air from making its way into your attic between uses. Additionally, the insulated doors prevent heat loss through the attic during the cooler months.

Among their many benefits, installing a Ghost whole house fan saves energy and dramatically reduces air conditioning costs. The money and energy saved using a whole house fan is a great advantage, but the health benefits are even greater. The Ghost provides a quick air exchange throughout the whole home, and this substantially improves the air quality. As a result, your family can breathe easier and stay healthier.

The HV series fans have been featured twice on the popular home improvement show Ask This Old House. A clip of the episode can be viewed here.


  • 2 Speeds move air at 1,900 or 3,400 CFM (cubic feet per minute)*
  • Only whole house fan brand with R50-insulated self-sealing doors (also available in R38¬†insulation)
  • Quick and easy installation
  • Energy efficient
  • Optional hardwire operation**


  • (2) Radio frequency key fob remote controls
  • 24.5″ x 16.5″ white ceiling grille
  • 6 ft power cord
  • 3-year warranty (extended warranty available)


  • Can reduce energy costs by up to 80%
  • California Title 24 compliant
  • Listed in the California Energy Commission Modernized Appliance Efficiency Database
  • Improves the home’s HERS score¬†(This index is the industry standard for measuring the energy efficiency of homes)

*CFM rates measured in a controlled test environment. Your results may vary due to building construction.
**Use of any type of control other than those we recommend will void product warranty. Recommended controls for hardwired fans include single pole single throw wall switches or spring-wound mechanical timers.

Spec Sheet


HV3400 “Ghost” Whole House Fan Installation Video

Click Here To View PDF Installation Manual:



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