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- Service system annually and make sure
that if you are using some other company then they clean the oudoor
coil each time the system is services. Studies have shown that just
cleaning the outdoor coil can save up to 25% on operating costs.
- Replace the filter as recommended and
use at least a pleated, high-efficiency type filter.
- Set the thermostat a little
higher. Each degree higher will lower your operating cost by approximately
4%.
- Have your duct system sealed. We use
mastic sealers instead of duct tape. Older systems used old methods
of duct installation. Studies have shown that the average system using
the older methods leaks approximately 25% of its air.
- Use your programmable thermostat to save
money. If you don't have a programmable thermostat, have your service
provider install one or more. Offset temperature and times to work with
your schedule.
- Check for negative pressure.
Turn your AC system on, crack open an outside door. If air moves in
through the crack then you have a problem. This means you have more air leaking from the supply air ducts than the amount leaking at the
return air duct/cavity. Negative pressure will bring unconditioned air
from outside and from the attic into your home when the AC is running.
- Replace your old, inefficient system.
A system rated 14.0 SEER or better could reduce your energy cost by
40% a year...really!
- Weatherize your home. Adding attic insulation (R-38 is recommended),
installing solar screens to sun exposed windows, provide shade to
the sunny side of the house.
- If you have a two-story home and only
one AC system, add zone controls and additional thermostats.
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