Is Poor Air Flow Design Attacking Your CPS Energy Bill & Savings?
Air Conditioning & 300
In the movie ‘Three Hundred’, the Spartans held back the Persian Army, the most powerful army in the world at the time, from entering their country because of a pass too small for a lot of men to enter. This restriction created the opportunity for a small force to compete with an army that was much larger. The same basic concept is true in the home air conditioning system. Installing a new high efficiency system in your home is like the Persian Army trying to invade, with the efforts being thwarted by too small of a pass to fit through. The army, now being air flow, cannot get to the battlefield; the rooms in your house, no matter how great the system can’t win the fight against heat and humidity.
Home Comfort System: Each Component Matters
The home comfort system is only as good as the corridors that carry the air. The system must be designed so that it gets the air to where it needs to be, with the proper force and velocity to overtake the enemy. Under-sized returns, improperly sized supply trunks can hold back the cool dry air from doing its job removing heat and humidity. The design phase is extremely important. If your system is not designed properly, meaning system sizing as well as duct work, you are going to be left with hot and cold spots, uncomfortable rooms, utility and repair bills that are higher than they needed to be. This means that you could be replacing the system before its time to do so.
Existing Home Update Example: Correcting Poor Design
Original return air design for this 1967 San Antonio home were too small for the system. The home owner was frustrated with the AC company who installed the system due to the lack of performance and mold starting to form on the outside area of the evaporator coils. After testing and calculating we determined air velocity was insufficient for the unit which was allowing mold to grow and not cooling the home efficiently.
The new air returns we installed were larger and contain a slow for the air filter. We added an additional air return as seen in the featured image. The larger returns allow the correct amount of return air to enter the system. With the filters in the grills the air is sucked in from the rooms into the cavity under the closet and up through the system with enough velocity to treat the mold issue.
We Don’t Guess, We TEST!
TASCO runs a heat load on our replacement systems to ensure it is properly sized. We also perform a flow hood test, to see how efficiently your duct work is supplying air to each area of the home. These measurements and calculations are paramount in the efficiency and comfort the new system will provide. If we don’t calculate how the supply and return ducts affect the efficiency and just replace an old aging system for a new hi efficiency system, you are only going to enjoy a fraction of the comfort and cost effectiveness that the system is designed to provide.
So when you are thinking about replacing your system, or you begin noticing that you have uncomfortable rooms in your home, make sure any HVAC contractor that comes to give an estimate looks at all the variables that are involved with efficiency and comfort, now you know what those factors are. And everyone remember; ‘If it has to be right it has to be TASCO’.