HV3400 2 Speed Whole House Fan With Remote Control


The HV3400 will cool your home and can improve air quality by exhausting hot, stuffy air and indoor air pollutants through attic vents and replace it with fresh air. The HV3400 moves up to 3400 CFM of air. The unit is equipped with unique R38 or R50 insulated doors that open and close automatically.

FREE SHIPPING (to the 48 contiguous states)

In Stock | Ships in 3-5 business days

Ships to Continental US addresses only

SKU: TTi-HV3400R38-1


The HV3400 Whole House Fan easily mounts in the attic on 16 or 24 inches on center joists and is operated by a Radio Frequency Remote Control included with your purchase.  This 3400 CFM* fan quickly circulates air and cools your home whenever the outdoor air is cooler than the indoor air. The HV3400 Whole House Fan operates at two speeds to exhaust hot air, indoor air pollutants, allergens,  moisture, and odors out through attic vents or gables while pulling cool, fresh air into the home through the open windows. The air exchange naturally cools your home and can improve indoor air quality.

Like all Tamarack HV Series Whole House Fans, the HV3400 Whole House Fan features a unique self-sealing door design. The unit includes R38 or R-50 insulated doors that open automatically when the fan is operating and seal shut automatically when the fan is off. The insulated door design prevents cool air from escaping your living area to the attic. The insulated doors also prevent heat loss through the attic during the cooler months.

Installing an HV3400 Whole House Fan reduces energy consumption and saves money. Tamarack’s Whole House Fans use 10% of the energy of a central air conditioning system thus cooling your home while reducing your energy bill.

As a result of the high quality of this product and ease of installation, the Tamarack HV fans have been featured twice on the popular home improvement show “Ask This Old House”.  A clip of the episode can be viewed here.


  • Two Speeds-capable of moving air at 1,900 CFM or 3400 CFM (cubic feet per minute)*.
  • Only whole house fan brand with R38 or R50 insulated self-sealing doors.
  • Quick and easy installation.
  • Energy efficient.
  • Optional hardwire operation**.


  • One Remote Control.
  • 24.5″ x 16.5″ white ceiling grille.
  • 6 foot power cord.
  • 3-year warranty (extended warranty available).


  • Reduce energy costs by using less AC power.
  • California Title 24 compliant, HVI-916 2852 CFM Rating.
  • 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 the product warranty. Recommended controls for hardwired fans include single pole single throw wall switches or spring-wound mechanical timers.

Product Specs

Ghost HV3400 Ductless Whole House Fan Product Specifications

HV3400 Ghost Ductless Whole House Fan R50 Insulated Mechanical Self Sealing Doors Specifications Cutsheet



CLICK HERE to Download/Print Installation Manual


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