Do you have rooms in your home that are always cold, regardless of how high you set your thermostat? There are many factors that can cause uneven heating in the home, here are some of the possible causes.
The Air Ducts Ductwork Are Leaking Or Are Undersized
If airflow to certain parts of the home is insufficient, you’ll experience uneven heating or cooling in those areas. An airflow imbalance will also cause your heating system to work overtime in order to compensate, which in turn will shorten the unit's lifespan and decrease its efficiency.
In order to create a balanced airflow a qualified HVAC technician will need to inspect and assess the effectiveness of your home’s ductwork by performing an airflow analysis.
Identifying leaks and blockages is also important, as leaks are a major contributor to inefficiency and uneven temperatures. If blockages are identified, they will be removed to restore airflow. Once the underlying causes of the imbalance have been identified, the appropriate repairs or replacement will be made to get your system functioning normally again.
Variable Speed Motors
Variable speed motors provide more even heating and cooling, and allow for more precise control of airflow throughout the home. By moving the air more slowly through the system, variable speed motors can help make a home’s air filtration and moisture control systems more effective. They adjust the system’s output based on the home’s heating or cooling needs. They can also be helpful in situations where uneven heating or cooling is actually desired. If there are rooms in your home that are rarely used, you can save money by keeping them at a slightly higher or lower temperature than the other rooms in your home. This involves “zoning,” which means customizing temperature settings for different areas of the home. In general, variable speed motors are the only systems that allow for zoning within the home.
Ensure Your HVAC System Is The Correct Size
Just as you’re experiencing discomfort due to uneven temperatures, your system is constantly trying to compensate, which means high utility bills and shortened system lifespan.
An improperly sized HVAC system may result in uneven heating or cooling. This could be the result of either an incorrect load calculation at the time of the system’s installation or a home’s heating and cooling needs changing over time. For example, it is common that an extra room is added or an area like an attic or basement is converted into living space. If your HVAC system is too small to properly heat or cool your home, uneven temperatures and system failures could result. To determine whether your HVAC system is properly sized, contact an HVAC professional for an up-to-date load calculation.