Poor airflow is usually the result of a poorly designed duct system. When your system isn’t sealed tightly enough, or an air leak goes undetected, airflow passes through your system unevenly. You may need a professional to re-work your duct system, or, if you find air doesn’t flow to the opposite side of your house, a zone damper system might be a better solution.

If you notice an increase in the amount of dust circulating in your home, double check the type of air filtration you’re using. The wrong size filter, or a low-quality type of filter, is going to be inefficient. You also might want to consider adding an air purifier to your home’s ventilation process.

This is a top question to ask when replacing an HVAC system because it opens you up to new ideas you may not have considered before. If you are used to duct heating, tank-based water heaters, and simple thermostats, you may be surprised that there are new developments out there that can help you have a more comfortable and energy-efficient home.

In order for your HVAC system to operate at its best, filters should be changed once they start to look discolored. If the filter looks dirty, it is dirty. Filters should be changed on a monthly basis when the system is in high use, such as during winter and summer months, and every other month during lower-use times in the spring and fall. If you want a smarter way to determine when it needs replacing, install an air filter gauge.