Holmes HAWF2021 7" Twin Window Fan with Adjustable Extender Screen
Air King 9166 20" 3-Speed Whole House Window Fan
Lasko 2137 7 Inch Twin Window Fan 2 Speed
Jarden Consumer-Fans SWF3000 Twin Window Fan
Optimus F-5280 7 Twin Window Fan
A window fan is a great way to ensure that the air in your home or office remains cool and circulating on even the hottest day, without forcing you to resort to using an air conditioner. These fans are all designed to fit directly in an open window, ensuring greater air circulation inside. Which of these window fans do you like the best for keeping your space cool in the summer?
Fantech SHR1505R HRV, 50-142 CFM @ 0.4" WG (3 Speed)
Venmar HEPA 3100 HRV Whole House HEPA Air Purification System
American Aldes 39 301 Three Bathroom Package with LT-15 HRV
Honeywell ER150B 2006 Energy Recovery Ventilation System
Broan-NuTone HRV90HT Versatile & Compact - Top Ports
A heat recovery ventilator is a handy, economical device that allows you to cycle stale air out of your home and fresh air in while preserving the pricey heat you've generated to keep the place warm. These gadgets exchange the air, using the outgoing stale air to heat the incoming fresh air. Which of these HRV units would you most likely use to ensure fresh air at little extra cost all winter long?
