You might notice a change in temperature as you move around the house and enter different rooms. Some rooms may be at the right temperature while some feel uncomfortably colder or warmer. If that’s the case, the airflow in your ducts may be unbalanced and your heating system must be checked and improved.
A balanced duct airflow ensures that all rooms regardless of its size receives the same amount of airflow and maintains the same ideal temperature for optimum comfort wherever you are in your house. Aside from that, it also boosts your heating system’s efficiency, hence, minimizes energy consumption.
Signs of an Unbalanced Duct Airflow
- Obvious varying temperature between rooms
- Obvious varying temperature between floors
- Differing airflow/ noise between registers
In this blog, we will present you with some intuitive duct airflow balancing tips and guide so you and your family can reap the benefits offered by a balanced duct and a fine-tuned heating systems. Note that a particular solution or tip may work for some and not to your home so read the whole blog and apply what suits your home’s needs best to increase or decrease airflow in specific areas.
Duct Airflow Balancing Steps
Step 1: Home Inspection
Perform a general airflow inspection by going around the house while noting areas that appear to be clearly colder or warmer than normal. You don’t need any particular temperature measuring tool for this step, simply feel each of the area and look for the registers on areas with the most noticeable temperature fluctuation.
Step 2: Opening and Clearing the Registers
The registers are very important air vents that deliver cold or warm air from your HVAC system and into your home. As you check on each register, make sure that it is open and free from any obstruction that could restrict proper airflow like fixtures, furniture or curtains.
Also, make sure that the registers are clean and that no debris or dust build-up is blocking the flow of air.
Step 3: Measuring Room Temperature
Using manual thermometers or digital temperature sensors, take note of the temperature of each room. Place the thermometers away from the registers and let it sit there for at least an hour before reading the final temperature. Note, that this procedure must be done consecutively to properly mark each room temperature.
Step 4: Using Duct Balancing Dampers
Duct balancing dampers are used to adjust the temperature of rooms that are hotter or colder than another. By slightly closing or opening the damper in the duct, you can regulate the amount of hot or cold air coming in the area and so as the temperature. The change in the room temperature does not happen drastically as you adjust the position of the dampers, wait for at least another hour before checking the changes with the thermometer.
You may repeat this step within the same room until you achieve the perfect indoor temperature you wanted. Apply and reapply this step to all rooms throughout your home until you achieve the same temperature, as programmed in your thermostat, for a more comfortable space all over your home.
While you’re doing this, remember to keep your thermostat in one temperature that you’re comfortable with. That will be your guide in finding the perfect temperature and balance. Changes must be done into the dampers and registers and not the thermostat.
Step 5: Mark the Damper Handle’s Position
Once you’re satisfied with the result, mark the position of the damper handle on the perfect position and note the current season you’re in.
Repeat the process once the season changes and mark the changes in the position of your damper handle so you can easily reposition it into the correct placement whenever you need.
Dampers are the final control devices for almost all airflow in HVAC systems. It is used to regulate airflow constantly and for climate control, as well as comfort and efficiency boost. ACEHVACPARTS offers a wide variety of dampers of different kinds to help modulate your HVAC system’s airflow.
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