Whether a whole house fan is worth the money depends on several factors, including:
Climate
Whole house fans are more effective in climates that have milder temperatures at night. If you live in a hot and humid area where temperatures remain high even at night, a whole house fan may not be as effective.
Energy Costs
A whole house fan can be a cost-effective way to cool your home if you live in a region with cool evening or nighttime temperatures. Whole house fans can actually save you up to 90% on your electricity bill. Pacific Gas & Electric Co. (PG&E) claims that whole house fans use up to 90% less energy air conditioners.
Home Insulation
If your home is poorly insulated, a whole house fan may be an effective way to cool the home. A hot attic that is poorly insulated, can cause heat to migrate throughout the entire house. In warm climates, where the sun constantly beams down on to the roof the attic quickly fills up with hot air and pushes down into the house and as a result raises the temperature. A whole house fan brings in cool fresh air from outside and pushes out the hot stale air that’s trapped inside the home and attic.
Ultimately, whether a whole house fan is worth the money depends on your specific needs and circumstances. If you’re interested in purchasing a whole house fan, it’s a good idea to do some research and speak with an expert to determine whether it’s the right choice for you.