Airflow
Typically the airflow should be set through the air handler to deliver between 400 and 500 cubic feet per minute (CFM), however as time goes on the amount you're getting can drop. Once the CFM has fallen to 350 or lower you're losing efficiency. Aside from normal wear and tear, poor airflow can be caused by dirty air filters, which you should be monitoring and changing on a monthly basis.
Poor airflow may also be the result of inadequate return registers or from simply closing the doors in your home. Check each room to make sure none of the registers are blocked. If the members of your household prefer to have their doors closed, make sure their room is not part of the return air system. If it is, you can consider asking an HVAC contract to help balance the supply and return airflow to improve the efficiency of your heat pump.
Ductwork
Ductwork losses can lower the efficiency of your system by as much as 30 percent if the insulation is inadequate or leaking. Periodic inspection or professional testing for leaks can save you a considerable amount of money and maybe even improve your indoor air quality, as leaks can spread pollutants from unconditioned areas of your home.
Refrigerant
Adequate refrigerant levels are essential for the continued operation of your heat pump. Either too high or too low will lower your systems efficiency. The only way to measure it to get a professional in to test for the precise recommended pressure, fix leaks, and add more or less refrigerant to get it operating at maximum efficiency.
Need someone to take a look at your heat pump, or have any other HVAC related problems? Give us a call today!
