Question: I’ve heard that bathroom ventilation fans can be big users of energy. What are my options for making my bathroom exhaust system as energy efficient as possible?

Answer: Overall, your heating, ventilation and air conditioning (HVAC) system is second only to food prep in terms of energy use—in fact, 28% of your energy consumption goes towards heating and cooling. Your bathroom ventilation is part of this overall system—and by improving one small area, you can make a difference to your overall costs.

Here are some things to consider:

  • Bathroom ventilation is important, so don’t even think about going without a fan. Moisture in bathrooms can cause mold, mildew, soggy insulation and rot. Plus, bathroom fans help maintain indoor air quality—an important part of making your customers happy.
  • That being said, you don’t necessarily need a bathroom fan to run continuously. Doing this means your air conditioner or make-up air system has to work harder, costing you more. Look for a bathroom ventilation system with motion and/or moisture sensors.
  • ENERGY STAR bathroom fans are up to 70% more efficient and are quieter than standard models, and can save up to $75 per year in energy costs (for fans that are run continuously).
  • Ductwork can affect your ventilation system’s efficiency, so make sure your ducts are properly insulated, the right size for your space, and kept clean.

For more tips, check out “How to create an energy-efficient restroom.”

Have you installed energy efficient bathroom fans? Do you have other ways to save money in your restroom? Share your suggestions in the comments section.

Image credit: exfordy