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When it comes to saving energy, upgrades like installing double-pane windows, switching to high-efficiency appliances, adding extra insulation in the attic, or upgrading to more efficient HVAC systems can take a big bite out of the utility bill. But it’s not always necessary to make a big change to see a big difference. Minor adjustments to behaviors and habits can have incremental benefits that add up. Unfortunately, there are several misleading “tips” for saving energy that actually does the opposite. Closing off rooms to improve efficiency is a persistent myth that can end up increasing energy bills.

The Myth

The oft-repeated tip states that a home’s HVAC system continuously heats or cools all of the air inside of the structure. Closing the doors of rooms that aren’t in use reduces the overall volume of air that the HVAC system needs to keep cool, meaning it doesn’t have to work as hard. This theory has some logic to it but overlooks critical information on how HVAC systems work.

The Truth

What actually happens is that the air in the room that’s closed gets trapped, which blocks airflow. The air won’t stay blocked for long. It will find ways to escape through cracks in doorframes, floorboards, windows, and anywhere else it can seep out. That means conditioned air is being pushed outdoors, where it’s wasted, rather than being allowed to circulate and heat or cool the whole house. It’s better to keep doors open or install a transfer grill to allow airflow throughout the home. 

At American Energy Air and Solar, we can help you separate fact from fiction and stick to methods and machines that are proven to save money. For example, if your HVAC system is dropping inefficiency, our maintenance plans can help keep it running at peak capacity while prolonging its lifespan. If your air conditioning system stops working, our repair & Tune-ups services can have it back up and running in no time. To get an idea of what we can do for you, read testimonials from our satisfied customers in the Greater Sacramento area.