10 Best Attic Fans | March 2017

We spent 28 hours on research, videography, and editing, to review the top choices for this wiki. In the summer months, the temperature in your attic can reach or exceed 120 degrees Fahrenheit. Don't lose your cool. Our selection of attic fans will help regulate the temperature in your whole house by blowing hot air out of the roof vents, thus minimizing humidity levels and the risk of mold. Skip to the best attic fan on Amazon.
10 Best Attic Fans | March 2017


Overall Rank: 6
Best Mid-Range
★★★
Overall Rank: 1
Best High-End
★★★★★
Overall Rank: 2
Best Inexpensive
★★★★★
10
The QuietCool AFG can lower your cooling costs by up to 90%, pushing an impressive 52 cubic feet of air per minute at a low wattage. It also comes in a fun green hue, and has a protective cage over the blades.
9
The Cool Attic CX1500UPS has a cool industrial look, but it's also very safe, with a thermally protected motor, so it doesn't risk overheating. It also has automatic shutters that open when the ventilator is on.
8
The iLiving Automatic has an adjustable thermostat and humidistat, so that you can control the temperature and humidity levels in your home. The housing and propeller are made from steel and built to last.
7
The Broan 35316 features extra strong ribbed casing, and is designed to move a lot of thick air. You can also easily remove the thermostat with a screwdriver and place it a few feet away from the fan for better readings.
  • makes an attic feel like the outdoors
  • fan blades shaped to scoop out air
  • unit is quite loud
Brand Broan
Model 35316
Weight 13.5 pounds
6
The Rand Solar 27 Watt has an adjustable angle mount, so you can move it as the sun moves and maximize its energy. It also cools up to 2,720 square feet of space, and can dramatically reduce moisture and water vapor.
  • setup requires no holes in your roof
  • includes thermal switch
  • only works on gable vent roofs
Brand Rand Solar
Model G-30w
Weight pending
5
The Cool Attic CX30BD2SPD is perfect for larger attics that need cooling. It includes a wall switch with high, low, and off options. Plus it has a PSC motor, which is easy to maintain, compact and highly efficient.
  • steel venturi is very durable
  • white powder coated finish
  • can work with attic space behind it
Brand Cool Attic
Model CX30BD2SPD
Weight 52.2 pounds
4
The Air Vent Inc. 54301 is a great whole house fan with a direct drive, so it efficiently draws power from the motor. It is so effective that it can thoroughly cool down houses that do not have an open-floor plan.
  • works with open windows
  • speed changes with an easy pull chain
  • made with high quality materials
Brand Air Vent
Model 54301
Weight 36 pounds
3
The Lomanco 1800 Addavant uses balanced blades to quietly and smoothly pull the hot air out of your attic. It also includes an exhaust louver to draw impurities out from your attic air, making it easier to breathe.
  • all-aluminum construction
  • thermostat has a push to test button
  • can be used with a humidistat
Brand Lomanco
Model 1800
Weight 8.9 pounds
2
The Air Vent Inc. 53315 has blades that sit close to the ceiling, so you won't risk hitting your head or hands on them when moving around in the attic. It also includes an adjustable thermostat to help you control temperatures.
  • lightweight and easy to install
  • made from durable metal
  • makes no noticeable noise
Brand Air Vent
Model 53315
Weight 8.8 pounds
1
The Natural Light Energy Systems is fully operational out of the box and requires no wiring, plus the solar grid easily attaches to a roof. If you just can't wait to cool down, it lowers temperatures within 10 minutes of use.
  • five blades for strong airflow
  • built in the usa with a 25-year warranty
  • includes a long cord to plug it in
Brand Natural Light
Model SAF36G
Weight 30 pounds

Proper Residential Ventilation

According to the United States Energy Information Administration's Residential Energy Consumption Survey (or RECS), the average American single family residence expends approximately 48% of its total energy costs on heating and cooling of the home. While this is down from an estimated 57% of total electricity usage in the early 1990s, thanks to better insulation and more energy efficient HVAC systems, it is still a substantial use of energy, and thus a major part of the annual expenses a family incurs simply by living their lives.

Cooled air during the summer and warmed air during the winter are not mere luxuries; it is essential for both comfort and for safety that you maintain temperate living conditions inside your home. That means the use of a central heating and cooling system whenever possible, as these systems are ultimately the most efficient and cost effective way to heat your home during the winter and cool it down in the summer.

Installing a central heating and cooling system mosts much more than the purchase of stand alone space heaters or wall unit air conditioners, but such systems use less energy to achieve the same degree of cooling for warming as stand alone units, so ultimately the costs of operating such individual units will surpass the initial cost of the central system.

Along with reliable heating and cooling, proper circulation and ventilation are also important aspects of maintaining safe interior air. And as poor Indoor Air Quality (or IAC) can lead to myriad health complications, including a worsening of asthma, allergies, or even headaches, dizziness, fatigue, or cognitive issues, according to the Environmental Protection Agency, again these are not matters of mere comfort, but of health and safety.

If your home has a central air conditioning and heating system, then simply making sure to replace the air filters as directed and having occasional system evaluation and cleaning by professionals should be all that's needed for safe, clean interior air, but if this system does not have venting in your attic area, then the addition of an attic fan may be warranted. And in the home without central air, not only can an attic fan do wonders to lower the interior temperature during the warmer months, but it can also help to keep the air in your residence cleaner and safer, too.

An Attic Fan For Temperature Regulation

In the hottest days of the summertime, when the ambient air temperature is in the 90s or above, and when the sun is beating down onto your home's roof for hours at a time, the temperature in your attic can soar to as much as 150 or even 160 degrees Fahrenheit. The mixture of hot air rising from inside your home and the conditions extant in most attics, including that solar heat from above and, often, a lack of proper insulation and poor ventilation, act to hold that heat which in turn can dramatically warm up the rest of the home. That means less comfort, and/or it means much more use of your HVAC systems, which puts undue strain on the hardware and which increases your home's electrical bills.

A decent attic fan can move dozens of cubic feet worth of air per minute, providing a complete "air change" many times per hour. (An air change is when all the air in a space, in this case the heated air in the attic, is cycled out in favor of new air naturally drawn in through the vents based by the movement from the fan.) A continuous air change cycle could see attic temperatures lowered by as much as fifty degrees or more. That means, for example, that on a day when it is 95 degrees F outside, an attic without a proper attic fan may be 160 degrees in temperature, while an attic with a fan will be only a modicum above 100 degrees. And it means the house below the attic will be much, much cooler still.

The same attic fan that helps to keep your attic (and residence writ large) much cooler in the summertime can also help mitigate one of the most common issues an attic faces in the colder months: moisture build up.

The Attic Fan For Moisture And Mold Reduction

There are few words a homeowner wants to hear less than the word "mold." And there are few conditions under which mold is more apt to grow than in a space that is dark and moist. If you have ever stuck your head up into the average home's attic during the late spring, the summer, or the early fall, then you know those two adjectives -- dark and most, e.g. -- are perfect descriptors of the space.

A warm, moist summertime attic is especially ripe for mold and mildew growth, but the hot temperatures of the summer often preclude much moisture buildup. In winter, the warm air drifting up from your home meets the cold air seeping in from the roof and vents and often creates the ideal conditions for mold to take hold.

To keep the attic free of mold, keep it free of moisture. That starts with ensuring your roof is in good working order, as a leaking roof is the number one cause of mold build up. It will come as little surprise that another leading cause for attic mold is leaking pipes or a faulty furnace or water heater.

But even in an attic with a solid roof and without leaking pipes, moisture will still be an issue without proper ventilation. An attic fan can help suck moisture out of the air and maintain the airflow needed to preserve a dry environment in your attic. and as attic fans have a price range between $75 and a few hundred dollars at the highest end, the one time installation of one of these units is much cheaper than thousands of dollars most mold remediation processes cost.



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Last updated: 03/22/2017 | Authorship Information

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