The most significant benefit of solar attic fans is that they operate using renewable energy.
Solar attic vents pros cons.
If a solar powered fan won t work for your location you ll need to hard wire one in.
Cons of solar attic fans there are also a number of negative points to keep in mind when you re considering installing a solar attic fan in your home.
It will make a home become more energy efficient.
The thermostat is adjustable by the homeowner and.
What are attic ventilation fans.
Cons of attic ventilation unfortunately most homes are improperly ventilated which can result in mold wasted energy ice dams premature roof system degradation rotting decks peeling paint and ceiling stains.
Still it is your dependable choice if you are looking for many years of use.
On the cons this attic fan may be too loud for some users.
However in arizona there s 299 days of sun on average in the phoenix valley.
This option runs on a renewable energy resource.
The solar panel.
But after seeing my solar powered attic fan work i have a long list of cons.
The solar attic fans all moved less than 1 000 cubic feet of air per minute cfm and they did nothing to lower the temperature inside my own attic.
The solar fan does have its downsides.
Ad the infrared rays from the sun are powerful.
Cons of solar attic fans.
Solar powered attic fans use the energy from the sun to power the fan.
First the air in the attic is generally warmer than in the rest of the house owing to the fact that hot air rises.
If you are blowing the hot air out of your attic during the.
Other factors also affect the operation of the solar fan.
When sunlight is blocked for whatever reason the fan comes to a halt immediately.
Also if the house is leaky the fan could actively be pulling warmer air from the home or other areas of the roof.
It is also more expensive versus other choices on the market are.
While a solar attic fan generally costs a little more than a basic electric model they do use less power.
My fan only works when it is getting direct sunlight on the solar panel if a cloud drifts through the sky blocking out the sun the fan stops spinning immediately as the sun sets the attic is still hot and my solar fan stops spinning.
If the angle of the sun is not high enough the fan will spin more slowly.
Almost all attic fans except turbine and solar are controlled by a thermostat.
Solar attic fan cons.
While attic fans provide the same kind of ventilation of roof vents there are a few downsides.
In some regions of the country that get a lot of rain and snow they aren t as reliable.
It will only function when direct sunlight falls on the panel.