Cooling usually costs more than heating, but the gap depends on your climate, your system, and how you use it
Air conditioning typically runs up a higher bill than heating because it works against the outdoor temperature year-round. A heat pump reverses this equation — it heats by moving warmth from outside air into your home, which uses far less energy than generating heat from scratch. In most climates, you will spend more on cooling in summer than heating in winter, even though winter lasts longer. The difference narrows significantly if you have a heat pump instead of electric resistance heating or gas.
The actual cost depends on three things: your local electricity and gas rates, how hot or cold it gets where you live, and how much you run the system. A homeowner in Arizona pays far more to cool than to heat because summer is brutal and winter is mild. A homeowner in Minnesota pays roughly equal amounts because winter is long and brutal, but summer cooling is short. Someone in a mild climate like coastal California may barely cool at all.
Key Takeaways
- Air conditioning typically costs 40 to 60 percent more per month than heating in climates with hot summers and mild winters.
- Heat pumps narrow the cost gap because they heat by moving outdoor warmth indoors rather than generating heat, using less electricity than traditional heating.
- Your actual costs depend on local electricity rates, how extreme your summer and winter temperatures are, and how often you run each system.
- Thermostat settings matter more than the system type — raising your cooling setpoint by 7 degrees for 8 hours a day saves roughly 10 percent of cooling costs.
Why cooling costs more than heating
Air conditioning moves heat out of your home against the outdoor temperature. In summer, when it is 95 degrees outside and you want 72 degrees inside, the system has to push 23 degrees of heat out. It runs continuously on hot days, and the hotter it is outside, the harder the compressor works and the more electricity it draws.
Heating with a heat pump works the opposite way. Even when it is 30 degrees outside, there is still warmth in the air. The heat pump extracts that warmth and moves it indoors. This process uses far less energy than electric resistance heating (which heats like a toaster) or gas heating (which burns fuel). A heat pump can deliver three units of heat for every one unit of electricity it uses, while a resistance heater delivers only one unit of heat per unit of electricity.
Gas heating complicates the comparison because gas is often cheaper per unit of energy than electricity. If your home uses gas heat and electric cooling, your heating bill may be lower even though the system works harder. If you heat with electricity or a heat pump, cooling will almost certainly cost more.
How climate shapes your heating and cooling costs
A homeowner in Phoenix, Arizona might spend $200 a month on cooling in July and August but only $40 a month on heating in January. The summer heat is extreme, the winter is short, and cooling dominates the annual bill.
A homeowner in Minneapolis, Minnesota might spend $120 a month on cooling in July and August but $180 a month on heating in January and February. Winter is longer and colder, so heating costs more in total, even though monthly cooling costs are lower. The annual bill splits roughly 55 percent heating and 45 percent cooling.
A homeowner in San Diego, California might spend $30 a month on cooling and $20 a month on heating because neither season is extreme. The system barely runs either way.
Your local electricity rate also matters. If your utility charges 18 cents per kilowatt-hour, the same system costs more to run than if you pay 12 cents per kilowatt-hour. Some regions have time-of-use rates that charge more during peak afternoon hours, which pushes cooling costs higher because air conditioning runs hardest when the sun is strongest.
Heat pumps versus other heating systems
A heat pump narrows the gap between heating and cooling costs because both functions use the same efficient process. A traditional system that cools with air conditioning but heats with gas or electric resistance will show a bigger cost difference because heating is cheaper (with gas) or heating is less efficient (with resistance).
If you have a heat pump and electric cooling, heating and cooling costs are more balanced. You might spend $100 on cooling in July and $95 on heating in January because the system is equally efficient both ways. The difference comes down to how long each season lasts and how extreme the temperatures are.
A dual-fuel system (heat pump plus gas backup) can lower winter costs in very cold climates. When outdoor temperature drops below the heat pump's efficient range — usually around 30 to 40 degrees — the system switches to gas heating, which may be cheaper. This setup reduces heating costs in places like Minnesota or upstate New York without sacrificing cooling efficiency.
What thermostat settings do to your bill
How you set your thermostat matters more than which system you have. Raising your cooling setpoint from 72 to 78 degrees saves roughly 10 percent of cooling costs. Lowering your heating setpoint from 72 to 68 degrees saves roughly 10 percent of heating costs. These changes are the fastest way to shift the balance between heating and cooling expenses.
Programmable and smart thermostats let you automate these adjustments. Setting the cooling to 78 degrees while you are at work and 72 degrees when you are home cuts cooling costs without sacrificing comfort during the hours you are there. The same logic applies to heating — lower it to 62 degrees overnight and raise it to 70 degrees in the morning.
Seasonal adjustments also help. In spring and fall, when outdoor temperatures are mild, you may not need to heat or cool at all. Turning off the system entirely on days when you can open windows costs nothing and can shift your annual balance significantly.
Other factors that affect heating and cooling costs
Insulation and air sealing matter as much as the system itself. A home with poor insulation and air leaks will cost more to heat and cool because the system has to work harder to maintain temperature. Upgrading insulation in the attic, sealing air leaks around windows and doors, and adding weatherstripping reduce both heating and cooling costs proportionally.
Window orientation and shading affect cooling more than heating. South and west-facing windows let in afternoon sun that heats the home in summer. Installing shade — trees, awnings, or interior blinds — reduces cooling costs. In winter, that same sun helps heat the home, so deciduous trees (which lose leaves in winter) are ideal.
System age and maintenance also shift costs. An air conditioning unit that is 15 years old runs less efficiently than a new one and costs more per month to operate. The same is true for heating systems. Regular maintenance — cleaning filters, checking refrigerant levels, and servicing the compressor — keeps both systems running at rated efficiency.
Comparing annual costs in different climates
| Climate Type | Typical Summer Cooling Cost | Typical Winter Heating Cost | Which Costs More |
|---|---|---|---|
| Hot and dry (Phoenix, Las Vegas) | $150–$250 per month | $30–$60 per month | Cooling by far |
| Hot and humid (Houston, Miami) | $140–$220 per month | $20–$50 per month | Cooling by far |
| Cold winters, warm summers (Minneapolis, Chicago) | $100–$150 per month | $140–$200 per month | Heating slightly |
| Mild year-round (San Diego, coastal California) | $20–$50 per month | $15–$40 per month | Roughly equal |
These ranges assume a 2,000 square foot home with average insulation and a heat pump or efficient system. Older homes, larger homes, and homes with poor insulation will see higher costs across the board. Homes in regions with lower electricity rates will see lower dollar amounts but the same percentage differences.
Frequently Asked Questions
Does a heat pump really cost less to heat than a furnace?
A heat pump costs less to heat than electric resistance heating because it moves warmth rather than generating it. Compared to gas heating, a heat pump may cost more or less depending on your local electricity and gas rates. In regions where gas is cheap, gas heating wins. In regions where electricity is cheap or gas is expensive, a heat pump wins. Check your utility rates to compare.
Why does my cooling bill spike in summer but my heating bill stays steady in winter?
Cooling costs rise sharply on the hottest days because the system runs continuously and the compressor works harder as the outdoor temperature climbs. Heating costs are more stable because winter temperatures fluctuate less day to day. A 95-degree day demands far more cooling than a 75-degree day, but a 20-degree day and a 30-degree day demand similar heating effort.
Can I reduce cooling costs without raising my thermostat?
Yes. Shade your windows with trees or awnings, seal air leaks around doors and windows, add insulation to your attic, and keep your air conditioning filter clean. These changes reduce the cooling load so the system does not have to work as hard. You can also run ceiling fans to circulate cool air, which lets you feel comfortable at a higher setpoint without changing the thermostat.
Is it cheaper to heat and cool with a heat pump than with separate systems?
A heat pump handles both heating and cooling with one efficient system, so you avoid the cost of running two separate units. However, the total cost depends on your climate and local utility rates. In very cold climates, a heat pump may need a gas or electric backup, which adds cost. In mild climates, a heat pump is almost always cheaper than separate systems.
What is the best temperature to set my thermostat to save money?
For cooling, 78 degrees is a common target that balances comfort and cost. For heating, 68 degrees is typical. The more you can tolerate moving away from 72 degrees, the more you save. Each degree of change saves roughly 1 to 3 percent of heating or cooling costs, depending on your climate and system efficiency.