Tamarack HV1000 R-50 Insulated Whole House Fan

The HV1000 is an innovative design in whole house cooling. The system is engineered to efficiently reduce the indoor temperature of your home by introducing cooler outside air. Energy Efficient Easy Installation No Maintenance Mechanically Sealed Doors Insulated to R50 Horizontal or Vertical Installation Fits 16" or 24" On Center Joists No Joist Cutting Necessary 3 Year Limited Warranty Assembled in the USA 1000 CFM