Attic Fan Versus Air Conditioner

The electricity consumption of a ceiling fan ranges widely depending on the design and the speed setting of the fan.

Attic fan versus air conditioner.

Keep in mind that they re doing two separate things. One to blow in the other to blow out. According to the article. Gable fans operate as two separate units on opposite sides of the attic.

A whole house fan moves air throughout the entire home including the living space and attic while an attic fan merely circulates air inside the attic. In some instances a fan will suffice. This prevents hot air from seeping into your home and driving up the temperature in the living space which reduces the load on your air conditioner. Both types of attic fans are popular as solar powered equipment.

When used in conjunction with an air conditioner ceiling fans may allow you to set your thermostat at a higher temperature and still be comfortable thereby reducing your overall energy consumption. When the conditions are right whole house fans are an energy efficient alternative to central air conditioning systems. An air conditioner while serving many of the same purposes is different than a whole house fan. An attic fan may not reduce your air conditioning costs but a whole house fan is a different story.

When set at low speed fans use between 15 and 30 watts and at high speed they consume between 50 and 100 watts. Running a fan is always a lot cheaper than running an air conditioner. The cost of air conditioning vs. A good window ac unit runs on 1 2 kilowatts and costs 14 cents an hour to run.

Just make sure you have the right climate to use one. A good ceiling fan it draws only 30 watts to run costing about 1 cent per three hours of use. Energy usage of about 40 watts at medium speed is typical. Rooftop fans are installed right on top of the roof and perform two tasks at once.

In others you ll need air. Using attic fans in cold climates. How is an ac system different. Doubters of attic fan efficiency claim that even solar powered attic fans which cost more initially but run off the grid can take 20 years to provide a return on the investment.

A three ton central air unit a common cooling system runs on about 3 kilowatts and costs about 36 cents an hour to run. Attic ventilation fans help cool air your attic by pushing out the stifling hot air from inside the attic and bringing in cool air from outside. Compared to an air conditioning unit whole house fans are much less expensive to operate more environmentally friendly and more efficient at cooling.