The best replacement for attic fan is whole house fan.

The best alternatives to attic fan are rated as following:
★★★★★  whole house fan
★★★★  ridge vent
★★  insulation
★  gable fan
★  radiant barrier
★  vent
★  electric attic fan
★  house fan
  vents
  whirlybird
  roof vent
  ridge vents
  regular attic fan
  turbine vents
  more insulation
  swamp cooler
  box fan
  whole house fans

Your alternative for attic fan is not listed? Suggest!
Speaking about attic fan, one probably shouldn't forget about humidistat.

Other search terms related to attic fan and their ratings are:
★★★★★ humidistat
★★★★ ridge vent
★ gable vent
blown insulation
You have in mind a companion for attic fan and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of attic fan in all years. Click on graph for more.
attic fan
whole house fan
ridge vent