Smart thermostat benefits: comfort, convenience, and real energy savings
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Author
Andrew Blok
Electrification and Solar Writer and Editor
Heating and cooling accounts for over half of the energy used in the average home. That can hurt, but it also means it’s a place to save.
Smart thermostats can help you do that and a lot more. Here’s how the benefits look, according to the research.
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Benefits of smart thermostats
Benefits can mean more money in your pocket, or connecting with the phone in your pocket.
- Lower heating and cooling bills. Most homeowners see a measurable reduction in what they spend on HVAC. How much depends on their climate, equipment, and habits.
- Automatic scheduling. Smart thermostats learn your routine and adjust temperatures around it. They can shift your house cooler at night or when it’s empty, without you touching the dial.
- Remote control. Adjust your home's temperature from anywhere via a smartphone app. Useful when you're heading home early or forgot to turn down the heat before leaving.
- Geofencing. Your phone's location can tell the thermostat to shift to an energy-saving mode when you've left and get the house comfortable when you're on your way back
- Usage reporting. Most models show you a breakdown of when and how long your HVAC system ran, which makes it easy to fine-tune your settings.
- Fewer manual overrides. Research has found that many owners of traditional programmable thermostats regularly override their set schedules, erasing the savings. Smart thermostats reduce that friction since the automation runs whether or not you remember to adjust.
What the research shows
| Finding | Source |
|---|---|
| ENERGY STAR-certified smart thermostats save an average of ~8% on heating and cooling bills, or roughly $50/year. | ENERGY STAR |
| Modeled utility bill savings ranged from $123 to $670/year across different home types, climates, and engagement levels, with the smart thermostat accounting for most of the savings. | NREL (2021) |
| A billing analysis of 13,762 gas-heated homes found an average saving of 22 therms/year on natural gas. | Energy Trust of Oregon (2025) |
| Thermostats that sense occupancy can reduce annual heating consumption (7-25%) and cooling energy consumption (15-40%). | Energy and Buildings study (2023) |
| Nest cites independent studies showing average savings of 12% on heating and 15% on cooling. | Google Nest |
| Ecobee claims average savings of 26% on heating and cooling for homes using its room sensor occupancy features. | Ecobee |
Will a smart thermostat actually save me money?
For most homes, yes. Though the amount depends on your starting point. If you're already diligent about setting back your thermostat at night and before you leave the house, a smart thermostat may not change much (though it will give you one less thing to think about). If your thermostat stays at one setting all day, the automation is likely to make a real difference.
Smart thermostats typically cost between $100 and $300. At $50 in average annual savings, payback could take a few years, but homeowners also get the comfort and convenience benefits.
Curious how a smart thermostat fits into your broader home energy picture? Palmetto Energy Advisor is a free tool that helps you understand your home's energy use and identify where upgrades make the most sense.
See what home electrification can do for you:
Frequently asked questions
Are smart thermostats worth it?
For many homeowners, yes. The energy savings average around 8% on heating and cooling costs, according to Energy Star, and the day-to-day convenience of remote access and automatic scheduling adds value beyond the bill. The financial payback depends on your habits, climate, and current energy costs.
Are smart thermostat energy savings real?
Yes, and independently verified. Energy Star certifies smart thermostats using real-world usage data from a large sample of homes. Results vary, but the savings are not theoretical. That said, savings depend on the house and how the thermostat is used.
Do smart thermostats work with all HVAC systems?
Not all of them. Most are compatible with standard central systems, but certain heat pumps, multi-stage systems, and older equipment may require a specific model or additional wiring. Check compatibility before buying.
How much does a smart thermostat cost?
Most retail between $100 and $300. Installation is often DIY-friendly for standard systems. Some utilities offer rebates for qualifying models, so check with yours.
Can a smart thermostat help if I have a heat pump?
Yes, though compatibility matters more with heat pumps. Look for models specifically designed to support heat pump operation, including auxiliary heat stages.
Disclaimer: This content is for educational purposes only. Palmetto does not provide tax, legal, or accounting advice. Please consult your own tax, legal, and accounting advisors.
