Best bathroom fan installation pros near Shepherd, TX

When maintained and repaired when necessary, your whole-house fan can last between 10 and 20 years. Check your warranty when purchasing the unit, as it will typically only cover between 5 and 15 years. Its longevity will also depend on your local climate and how much you use the fan. Having a professional size your fan appropriately for your home size will also help ensure it doesn’t get overworked, which can limit its lifespan.

Fan power is measured by CFM, or cubic feet per minute. For every 1,000 feet of square footage in your attic, you need a minimum of 700 CFM. Steeper roofs may need larger fans or about 840 CFM.  You can figure the size of attic fan you need by multiplying the square footage of your attic floor by 0.7. (multiply by 1.2 for a steep roof and 1.15 for a dark roof). That number is the CFM required for your fan to run efficiently.

Most duct booster fans are not designed to run continuously, though some models can be programmed for constant operation. Typically, they are controlled by the user via a switch, controls on the unit itself, or by being wired to the HVAC system's thermostat. Wiring the fan to a thermostat allows it to run automatically only when heating or cooling is active, which saves energy and is an effective way to activate the fan only when needed to address issues like uneven room temperatures.

As a general rule of thumb, clean your fans whenever you tidy up the home. Fans benefit greatly from a light weekly cleaning and a deep cleaning at the start of each season. If it’s been a while since you touched up the fans with oscillating blades, start with the deep cleaning before moving on to the lighter touch-ups. If you’re unsure when to clean fans and other parts of the home, learn how often you should clean your home.