If you’ve ever looked at your energy bill and wondered where all that money went, your thermostat might be part of the answer. Heating and cooling can account for a significant portion of a home’s energy use, which is why many homeowners are turning to smart thermostats as a way to lower their monthly utility bills.
But have you ever thought about if smart thermostats actually save money, or are they just another piece of technology for your home?
The short answer is: yes, a smart thermostat can save money — but how much you save depends on how you use it, your HVAC system, and your home.
What Makes a Thermostat "Smart"?
A traditional thermostat allows you to set the temperature in your home. A programmable thermostat takes things a step further by automatically adjusting the temperature according to a homeowner’s schedule.
A smart thermostat adds even more features. Depending on the model, it may be able to:
- Learn your heating and cooling habits, what temperature do you like your home at
- Adjust temperatures when you're away from home
- Allow you to control your HVAC system from your phone
- Provide energy-use reports
- Send maintenance or filter reminders
- Integrate with other smart-home devices
- Adjust settings based on weather or other conditions
The goal is simple: keep your home comfortable without running your HVAC system more than necessary.
How Can a Smart Thermostat Save You Money?
1. It Can Reduce Heating and Cooling When You're Away
One of the easiest ways to waste energy is to heat or cool an empty house. If everyone leaves for work or school during the day, there may be little reason to keep the home at the same temperature as when everyone is there.
A smart thermostat can automatically adjust the temperature when you're away and return your home to a comfortable temperature before you get back. Over time, those adjustments can reduce unnecessary HVAC runtime.
2. It Helps You Create an Energy-Saving Schedule
A smart thermostat allows you to create schedules around your daily routine.
For example, you might choose a slightly higher cooling temperature during the summer while everyone is sleeping or away. During the winter, homeowners typically lower the heating temperature while you're out of the house.
It may not seem like it’ll make a difference, but those small temperature adjustments can add up over the course of an entire heating or cooling season.
3. You Can Control Your Thermostat From Anywhere
How about when you forget to adjust the thermostat before leaving for vacation?
With a smart thermostat, you can often change the temperature from your smartphone. That means you don't have to keep your HVAC system running at a comfortable temperature for an empty house simply because you forgot to change the setting.
4. Energy Reports Can Help Identify Waste
Some smart thermostats provide information about how long your HVAC system has been running. This can give homeowners a better understanding of their energy habits.
If you notice that your air conditioner or furnace is running constantly, that could be a sign that something needs attention — whether it's an inefficient setting, poor insulation, restricted airflow, or an HVAC system that isn't operating properly.
How Much Money Can a Smart Thermostat Save?
This is where homeowners should be careful.
There isn't one guaranteed dollar amount that every homeowner will save by installing a smart thermostat, but there are potential savings depending on factors, for example, local climate, sizing and efficiency of your HVAC system, insulation, current thermostat settings, and how often you are home.
A smart thermostat isn't a magic device that automatically cuts your energy bill in half.
The biggest savings usually come from using the thermostat to avoid unnecessary heating and cooling.
A Smart Thermostat Can't Fix an Inefficient HVAC System
This is an important point homeowners sometimes overlook.
If your furnace or air conditioner is struggling to maintain the temperature, a smart thermostat won't solve the underlying problem.
For example, if your air conditioner is running almost constantly during the summer, there could be an issue with:
- A dirty air filter
- Restricted airflow
- Poor ductwork
- Low refrigerant
- An aging HVAC system
- Improper system sizing
- Poor insulation
- A malfunctioning component
Installing a smart thermostat may give you more control, but it won't make an inefficient HVAC system efficient.
Is a Smart Thermostat Worth It?
For many homeowners, yes. They can be worth it especially if you want more energy efficiency, monitoring heating and cooling habits, forgetting to adjust the thermostat, home being empty several hours a day, and changes in your schedule.
However, the thermostat needs to be compatible with your HVAC system and installed correctly.
Some systems — particularly certain heat pumps, multi-stage systems, zoned systems, and systems with specialized controls — may require specific thermostat compatibility.
Don't Forget About Maintenance
Your thermostat is only one part of your home's heating and cooling system.
Regular HVAC maintenance can also help your system operate efficiently and reliably. Simple things like replacing air filters, keeping outdoor equipment clear of debris, and having your system professionally inspected can make a difference.
If your HVAC system is running longer than normal, struggling to reach the temperature you set, or causing your energy bills to increase unexpectedly, it may be worth having a professional take a closer look.
The Bottom Line
Does a smart thermostat really save money?
It can.
A smart thermostat gives homeowners more control over when their HVAC system runs and can help reduce unnecessary heating and cooling. But the thermostat itself isn't what creates the savings — it's the smarter way you use your HVAC system.
If your energy bills seem unusually high or your HVAC system is running constantly, don't assume the thermostat is the problem. Your heating and cooling system may need maintenance, repairs, or an efficiency evaluation.
Want to find out whether your HVAC system is operating as efficiently as it should? Contact Mammoth Heating and Air for an inspection and get the most out of your heating and cooling investment.
