For most U.S. households, heating costs more than air conditioning. The Department of Energy estimates that heating accounts for approximately 42% of residential energy use, while air conditioning makes up about 6%. However, this national average masks significant regional differences. In hot climates like Arizona, Florida, and Texas, AC can actually exceed heating costs.
On average, American households spend $1,000 to $1,800 annually on heating compared to $300 to $700 on air conditioning. The disparity comes down to several factors including the energy source used for heating, the temperature differential between indoor and outdoor air, and the efficiency of the equipment.
Heating generally requires more energy than cooling because of the temperature differential. In summer, the difference between indoor comfort (72°F) and outdoor heat (95°F) is about 23 degrees. In winter, the gap between indoor comfort (70°F) and outdoor cold (20°F) can be 50 degrees or more. The larger the temperature gap, the more energy your HVAC system must expend.
Additionally, most heating systems rely on fossil fuels (natural gas, propane, or oil) which have different cost structures than electricity. Electric resistance heating is particularly expensive, costing 2 to 3 times more than a heat pump for the same heating output.
The energy source you use for heating dramatically affects your costs. Here is a comparison of typical heating costs per million BTU of heat delivered:
| Heating Source | Unit Cost | Efficiency | Cost per Million BTU | Annual Cost (Avg Home) |
|---|---|---|---|---|
| Natural Gas Furnace | $1.20/therm | 90-98% | $12.50 | $750-$900 |
| Electric Heat Pump | $0.16/kWh | 250-300% | $14.50 | $870-$1,040 |
| Electric Resistance | $0.16/kWh | 100% | $46.80 | $2,800-$3,400 |
| Propane Furnace | $2.50/gal | 90-95% | $27.00 | $1,620-$1,940 |
| Oil Furnace | $3.80/gal | 80-90% | $30.50 | $1,830-$2,190 |
| Central AC (Electric) | $0.16/kWh | SEER 16 | $18.20 | $400-$700 |
Where you live plays a huge role in whether AC or heating dominates your energy budget. Let us examine how costs compare in different U.S. regions:
| City | Annual Heating Cost | Annual AC Cost | Which Costs More? |
|---|---|---|---|
| Minneapolis, MN | $1,850 | $280 | Heating (6.6x) |
| Boston, MA | $1,500 | $320 | Heating (4.7x) |
| Chicago, IL | $1,350 | $380 | Heating (3.6x) |
| Denver, CO | $1,100 | $250 | Heating (4.4x) |
| Atlanta, GA | $750 | $550 | Heating (1.4x) |
| Dallas, TX | $550 | $750 | AC (1.4x) |
| Phoenix, AZ | $250 | $1,100 | AC (4.4x) |
| Miami, FL | $120 | $950 | AC (7.9x) |
Heating Degree Days (HDD) and Cooling Degree Days (CDD) measure how much energy is needed to maintain indoor comfort. A city like Minneapolis experiences about 7,800 HDD versus only 400 CDD, making heating overwhelmingly dominant. In contrast, Phoenix sees about 3,200 CDD versus just 2,000 HDD, tipping the scales toward cooling.
Poor insulation affects heating costs more than cooling costs. Heat loss through walls, roofs, and gaps is more severe in winter because the temperature differential is larger. Upgrading attic insulation from R-19 to R-38 can save $200 to $400 per year on heating alone.
Modern heat pumps have narrowed the gap between heating and cooling costs. A high-efficiency heat pump with a COP of 3.0 delivers three units of heat for every unit of electricity consumed, making it far more cost-effective than electric resistance heating. However, heat pumps lose efficiency in extreme cold (below 25°F), which can increase costs in northern climates.
If your utility offers time-of-use pricing, you can save on AC costs by pre-cooling your home during off-peak hours. Heating systems run more continuously, making it harder to shift loads. This rate structure can make AC relatively cheaper compared to heating.
Consider a 2,000 sq ft home in Chicago with a gas furnace and central AC. Here is how monthly costs compare throughout the year:
| Month | Heating Cost | AC Cost | Total HVAC |
|---|---|---|---|
| January | $245 | $0 | $245 |
| February | $215 | $0 | $215 |
| March | $145 | $0 | $145 |
| April | $60 | $10 | $70 |
| May | $15 | $45 | $60 |
| June | $0 | $95 | $95 |
| July | $0 | $130 | $130 |
| August | $0 | $125 | $125 |
| September | $10 | $70 | $80 |
| October | $70 | $15 | $85 |
| November | $155 | $0 | $155 |
| December | $220 | $0 | $220 |
| Annual Total | $1,135 | $490 | $1,625 |
For the majority of American households, heating costs more than air conditioning. The national average spending on heating is roughly 2.5 times what is spent on cooling. However, if you live in the Sunbelt region, your experience may be the opposite. The key takeaway is that both heating and cooling represent significant portions of your energy budget, and improvements to insulation, equipment efficiency, and smart usage habits can yield substantial savings in both categories.
Understanding your local climate, energy rates, and home characteristics is essential for determining which cost dominates in your situation and where to focus your efficiency investments.
Disclaimer: The information provided on this page is for general informational purposes only and does not constitute financial, legal, or tax advice. Always consult with a qualified professional advisor before making financial decisions. Rates, thresholds, and regulations change frequently — verify current figures with official government sources.