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The HV1000 Whole House Fan easily mounts in the attic on 16 or 24 inch on center joists and is operated by a SPST wall switch, or spring-wound timer. The fan can be installed horizontally in the framing of the attic floor. This 1000 CFM* fan quickly exhausts air and cools your home whenever the outdoor air is cooler than the indoor air. The HV1000 Whole House Fan operates at one speed 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 the indoor air quality. Like all Tamarack HV Series Whole House Fans, the HV1000 Whole House Fan features a unique self-sealing door design. The unit includes R38 or R50 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 HV1000 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. FEATURES: Quickly exhausts 1000 CFM* | Cools & ventilates the entire home using fresh outside air Energy efficient at only 63 W Mechanical self-sealing doors with R38 insulation Also available with R50 insulation Install horizontally in the framing of the attic floor Fits 16” or 24” on-center joists | No joist-cutting required Maintenance-free Controlled by a SPST wall switch , or spring-wound timer (not included with fan purchase)** Not compatible with other types of timers Listed in the California Energy Commission Modernized Appliance Efficiency Database 3-year limited warranty INCLUDED WITH FAN: 17 3/4” × 25 3/4” white metal ceiling grille Unit is hard wired during installation Third party HVI-916 testing data available upon request *CFM rates measured in a controlled test environment. Your results may vary due to building construction. **All other controls will void the product warranty UL Component UL Listings; E115252, E170149 **Designed to only be installed and vented into the attic space of a home. No part of this fan can be mounted on an outside wall. Doing this will void all warranties. Current Lead Time 1 Week
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🇺🇸 Ship from USA · On Agora since 2026
$709.00