Whole House Fan – Check Out the Current Customer Comments for Whole House Fans.

Several of my clients ask me in regards to the big square box inside the center area of the house's upper floor ceiling behind some self-closing louvers. It's a huge house fan also it can either benefit house owners or make living conditions worse.

* Preferably mild climates with cooler and fewer humid nights

* Utilize it as long as the temperature and humidity outside is far more favorable compared to conditions indoors. If your air conditioning system continues to be operating throughout the day, as well as the temperature outside drops lower (although the humidity remains to be high), don't turn the check these guys out. The vent will suck all of the humid air into the air conditioned house

* The best time periods to make use of it could be, naturally, morning hours and evening

Should you suffer from allergies, it is probably not a good idea to bring every one of the pollution in to the house. Your window screens will stop a number of it, but whole house fans are very powerful and can make you sneeze more than ever.

1. Prior to deciding to turn the fan on, open as many windows and doors as possible, close fireplace damper and / or glass door, and shut the furnace / hot water heater room doors (if they are louver type, it won't matter). The suction of your whole house fan (no less than at the highest speed) is so great, that without open windows / doors, it will draw air externally through any possible openings like, by way of example, from the chimney. If it is a fireplace chimney so you don't remove the ashes... well, it's likely to be a mess. When it is a water heater / furnace chimney, it might blow off of the pilots.

2. When all things are ready, you can turn on the whole house fan and usually throughout the next few seconds you need to feel lots of exterior air flowing in your home. Unless...

3. This part is incredibly important as opening the windows and doors - both have to be balanced to function properly so that you can really enjoy the whole house fan operation. The air drawn with the whole house fan has to be discharged through the attic vents for the exterior. Otherwise, pressure created in the attic area may cause air that had been just pulled from your house to come back with dust and insulation particles through any possible gaps within the attic wh0le and also the whole house fan itself.

Regular attic ventilation might not be enough to aid the Tumblr operation; you might need much more to handle all that extra amount of air on the exterior. As well as the formula to calculate the sq footage of the attic vents needed to discharge that air is very simple. You simply need the size of all of your rooms:

Example: your ceilings are 8' high and you have four 10' x 14' rooms, one 15' x 17' room, along with a 10' x 3' hallway (this is simply a sample, calculate all of the rooms within your house you imagine must be covered)

10'x14'x8' = 1120x4 = 4480

15'x17'x8' = 2040

10'x3' = 30

Total - 6550 cubic feet

Now you have to divide 6550 by 750, which equals 8.73 sq feet - this is basically the section of the required attic vents (all of them combined - soffit, ridge, gable, etc.)

4. When the house you're stepping into provides the whole house fan already installed, lets hope that this was properly sized up for the purpose (there can be a tag on the unit itself), which would be to replace your home air within just a few minutes.

5. If you're the one installing the whole house fan, consider 3 or 4 minutes as being an optimal time for that house air exchange. To achieve that, you'd should divide your residence total air volume (6550 cubic feet from my sample) by 3 or 4 minutes. Which will give us 1810 CFM / 1357.5 CFM (Cubic Feet per Minute).

6. An additional critical thing: louvers in the great tumblr post will not be air tight and also have no insulation put on their surface; they leak air involving the house and attic. I would personally highly recommend installing an entire house fan cover in attic area in order to avoid air drafts through the cold season - don't forget to remove it before you use the fan again.

Whole house fans are noisy and several people never rely on them, nonetheless they might benefit your wallet should you apply all of the above. There are currently other sorts of house ventilation systems available: they can be more expensive (2 - three times) but very quiet, more potent, and offer air flow for prolonged intervals.

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