How long can you run a whole house fan?

Part 2 On average you should run the fan for 4-5 hours to ensure the attic is cooled. The attic is what keeps the home hot. We always recommend the use of a timer. Keep in mind that our systems will provide you with a whole house ventilation fan that can be used to exhaust cooking odor, stale indoor air, etc.

Can a whole house fan overheat?

Warning. Without proper ventilation, powerful whole-house fans can create a backdraft in your furnace or water heater, potentially causing carbon monoxide to be pulled into your rooms. Operating the fan without open windows may also cause the fan to overheat.

Do whole house fans use a lot of electricity?

A whole house fan will draw 200 to 700 watts, about 10 percent of a central unit, which will draw 2,000 to 5,000 watts. This means running the whole house fan will cost approximately 90 percent less than running a central air conditioning unit for the same amount of time.

When should you turn on your whole house fan?

The whole house fan should be turned on in the evening hours when temperatures outdoors are cooler, and when the air is dry and cool. Avoid turning on the fan during the day when temperatures are high, or when the air is humid, as it provides you with limited or no benefits in your home.

Can Whole house fans cause mold?

Whole house fans move so much air that any moisture that may come in from outside has no chance to settle. Many homeowners that have a whole house fan love running them when they get out of the shower to exhaust all that steam and humidity that builds up and can cause mold.

Can you leave an attic fan on all night?

Generally speaking, an attic fan should run as long as it takes to replace all the attic air with outside air. Usually, this takes roughly 15 minutes. However, you can calculate a much more accurate time by dividing the strength of your fan by the volume of your attic space.

When should I turn off my whole house ventilation?

Here are some simple operating rules to live by: Don’t jump up to turn on a whole-house fan until after the sun sets in the evening and the temperature drops. Turn the fan off when your home cools down or leave it on “low” to keep cooling your home overnight. Close up your home during the warmest days of summer.

What is the proper way to use a whole house fan?

How To Use Your Whole House Fan

1. 1 Open a few windows 4-6 inches.
2. 2 Turn on your whole house fan using the switch or portable remote and timer.
3. 3 Feel the nice, cool breeze as air passes through to the attic and fresh air replaces stale, trapped air.
4. 4 Experience complete indoor air exchanges in your home every 3-4 minutes.

Is it cheaper to run the house fan or AC?

Fans are cheaper to run than air conditioners, and can be used in place of air conditioners or along with them to save money. You can actually raise the thermostat on your air conditioning unit by 4 degrees without lessening the cooling effect if you turn on the ceiling fan.

Should you run a whole house fan during winter?

If you live in a cold climate, particularly if you get below-freezing temperatures during the winter, it is imperative that the whole house fan is sealed properly. If the fan comes with a motorized and insulated door, this will automatically close when it is turned off.

When should I turn on my whole house fan?

Why shouldn’t you leave your fans running all night?

Dehydration is one of the common problems in rooms where fans are left running all night. Fans are intended to circulate the air inside the room. By doing so, they help us feel and sleep soundly because our bodies are exposed to cool air from the outside environment.

Should you run the fan on your air conditioner continuously?

Pros to Running Fan on Air Conditioner Continuously: Keeping the fan on creates a more even distribution of heating and cooling, circulating the air if you have cold or hot spots in your house, like a bedroom above a garage. Less frequent starts and stops of the fan can reduce the stress from startup, and potentially help extend it’s lifespan.

When should I Turn Off my whole house fan?

Turn on the whole-house fan when the air outdoors is cool and dry, particularly during the evening hours when temperatures have cooled. Turn off the fan during the day when temperatures outside rise higher than in the house.

Is it worth it to keep a fan on all the time?

Cons to Keeping Fan Continuously Running: It could cost you hundreds of dollars a year. The average unit has a 500 watt fan, which uses almost as much energy over the course of the year as a refrigerator, resulting in a $50/month bill.