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Lower bills usually start with the house Efficient equipment helps, but sealed ducts, fewer air leaks, the right size of system and sensible settings often matter more. Here is the order to look at them in.
Home energy assessment
A blower door test shows how leaky the house is An infrared camera finds missing insulation and gaps Many utilities offer assessments; ask yours what is available Fix the cheapest leaks before you size new equipment Check my home 01.
Efficient equipment
SEER2 for cooling, HSPF2 for heat pump heating, AFUE for furnaces Variable-speed equipment runs longer at lower, steadier output Compare running costs in your climate, not only the price Ask for the ratings of the exact matched system being quoted Check my home 02.
Ducts and air sealing
Seal duct joints with mastic or foil tape rated for ducts Insulate ducts that run through attics and crawl spaces Seal gaps around attic hatches, pipes and wiring holes Weatherstrip doors and windows that let in drafts Check my home 03.
Incentives
Utilities and states run rebate programs that change often The DSIRE database lists incentives by state Your state energy office can say what is current Get any rebate terms in writing before you sign a contract Check my home 04.
Settings that cost nothing
Schedule
Set back the temperature while you sleep or are out
Fan
Leave the fan on auto rather than running it all day
Vents
Keep supply and return grilles clear of furniture
Shade
Close blinds on sunny summer afternoons
Filter
A clogged filter makes the blower work harder
AC units, furnaces, heat pumps, installs
Heating & Cooling Systems
01.
Repairs, inspections, replacements
HVAC Maintenance & Repairs
02.
Filtration, humidity, ventilation
Indoor Air Quality
03.
