What do all those rating numbers mean?
The federal government
requires all air conditioning and heating equipment to be rated for
efficiency. The higher the rating, the more efficient the model.
Gas furnaces are rated for
AFUE
(Annual Fuel Utilization Efficiency). This defines the amount of
heat used to warm your home from the burned fuel. A 90% furnace will
use 90% of the available heat to heat your home. 10% of the heat is
vented outdoors. Many older gas furnaces are only 60% efficient. The
other 40% is vented outdoors. You can see that a new high-efficiency
furnace will require much less fuel to heat your home.
For air conditioning, the rating is
SEER
(Seasonal Energy Efficiency Ratio). This rating is based on general
design criteria such as the compressor and outdoor coil. SEER
ratings are for comparison purposes only, so that homeowners will
know how they can compare different brands of products with similar
efficiency ratings. The rating for the outdoor unit will reference a
general efficiency range, such as 14 SEER. The actual efficiency
rating for a specific system will depend on the combination of the
outdoor unit and the indoor coil. These ratings are available from
your dealer and the Air-Conditioning and Refrigeration Institute's
Energy Guide. A variable-speed indoor blower unit will increase the
efficiency rating of the system, as well.
Heat pumps are rated by SEER for cooling efficiency and by
HSPF
(Heating Seasonal Performance Factor) for heating efficiency. As
with other ratings, the higher the HSPF, the less energy it will
take to warm your home.
WE ARE YOUR INDEPENDENT TRANE COMFORT SPECIALIST™ DEALER
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Joining our Comfort Care Club is fast and easy. Once
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Priority customer
24 hour emergency service
Never an overtime charge |
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Agreement is transferable |
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