Mercedes Mullins
Lowering your thermostat by 2 degrees can lead to significant savings on your energy bill and is better for the environment. The US Department of Energy estimates savings of about 1% for each degree of thermostat adjustment per 8 hours, amounting to up to 10% annually. The exact savings depend on factors like climate, insulation, and the efficiency of your HVAC system. Bigger homes will see greater savings in absolute terms, but the relative savings will be similar for smaller homes. Lowering your thermostat can also help reduce carbon emissions and combat climate change.
| Characteristics | Values |
|---|---|
| Impact on heating bill | Lowering the thermostat by 1-2 degrees can reduce your heating bill by 1-5% |
| Impact on energy consumption | Lowering the thermostat reduces energy consumption and lowers greenhouse gas emissions, helping to combat climate change |
| Smart thermostats | Installing a smart thermostat can save 8-10% on your monthly electric bill |
| Power company rebates | Some power companies offer rebates and bill credits for customers who are willing to adjust their thermostat a few degrees on cold days |
| HVAC system efficiency | The efficiency of your HVAC system impacts the amount of energy consumed, with newer systems generally being more efficient |
| Home envelope | Drafty homes will lose treated air faster, impacting the effectiveness of adjusting the thermostat |
| Climate | In extreme climates, it can be harder to maintain the desired indoor temperature, while in mild climates, adjusting the thermostat can have a greater impact on savings |
| Humidity | Low humidity in winter can make you feel colder, but adding moisture to the air with a humidifier can help you feel warmer and reduce the need for heating |
| Comfort | Lowering the thermostat by more than 2 degrees may cause discomfort, so addressing drafts and insulation can help improve comfort while lowering heating bills |
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What You'll Learn
The impact on fuel bills
Turning down your thermostat by two degrees can help you save money on your heating and cooling bills. The exact savings depend on factors like climate, insulation, and the efficiency of your HVAC system. However, it is estimated that turning down your thermostat by one degree can reduce your energy bill by around 1-3% for each degree lower you set it over an 8-hour period. This means that turning it down by two degrees could save you up to 6% over an 8-hour period.
During the winter, the U.S. Department of Energy recommends keeping your thermostat at 68 degrees Fahrenheit when people are home and awake, and lowering it by up to 10 degrees when everyone is sleeping or away. This can result in significant savings over the course of the heating season. For example, if you typically keep your thermostat at 70 degrees Fahrenheit and reduce it to 68 degrees, you could save about 2% on your heating bill.
In the summer, the principle remains the same but applies to your cooling costs. A thermostat adjustment of just a single degree can lead to a similar reduction in cooling expenses and increased system energy efficiency. The less your air conditioner has to work to maintain the temperature setting, the less energy it consumes.
In addition to the financial savings, lowering your thermostat also has a positive impact on the environment by reducing energy consumption and lowering greenhouse gas emissions, which helps combat climate change.
To maximize your savings and make it more convenient to adjust your thermostat, consider investing in a programmable or smart thermostat. These devices allow you to set different temperature profiles for different times of the day and week, automatically adjusting the temperature when you are away or asleep.
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The impact on the environment
Turning down the thermostat by 2 degrees can have a significant impact on the environment. Firstly, it reduces energy consumption, which leads to lower greenhouse gas emissions and helps combat climate change. The less energy we consume, the less we will rely on fossil fuels, which are major contributors to air pollution and carbon emissions. This is especially true if we turn down the thermostat during the winter, as heating systems often burn fossil fuels to generate heat.
Secondly, turning down the thermostat can reduce the carbon footprint of a building. Lowering the temperature reduces the amount of energy needed to cool or heat the space, which leads to a decrease in the carbon emissions associated with that building. This is especially beneficial for larger buildings or homes, as they tend to have a higher carbon footprint due to their increased energy demands.
Thirdly, turning down the thermostat can encourage the adoption of more sustainable practices. For example, people may be more inclined to invest in a programmable or smart thermostat, which can help reduce energy consumption even further. Additionally, people may be incentivized to address other energy-saving measures, such as improving insulation or sealing drafts, which can further reduce the carbon footprint of a building.
Finally, the collective impact of many people turning down their thermostats can have a significant environmental impact. While the impact of a single degree may seem negligible, when multiplied across thousands or millions of homes, the reduction in energy consumption and emissions can be substantial. This can help countries reduce their overall gas demand and carbon emissions, contributing to global efforts to mitigate climate change.
Therefore, turning down the thermostat by 2 degrees can not only reduce energy costs but also have a positive and meaningful impact on the environment, contributing to a more sustainable future.
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The importance of addressing comfort problems
Turning down the thermostat by 2 degrees can lead to significant savings on energy bills and reduce energy consumption, but it is important to address comfort problems to ensure that occupants are willing and able to adapt to the change.
Firstly, it is important to understand the science behind lowering the thermostat. When the temperature difference between the inside and outside of a building is reduced, the heating or cooling system consumes less energy because the temperature gap it needs to bridge is smaller. This leads to reduced energy costs and a more stable indoor temperature.
However, one of the biggest challenges when encouraging occupants to lower the thermostat is addressing comfort issues. Convection, for example, can result in drafts at floor level as make-up air is drawn in to compensate for air passing through the ceiling. This can be mitigated by addressing the ceiling with advanced air sealing and applying spray-on open-cell foam to the rim/band joist, which will significantly reduce drafts and improve comfort.
Additionally, it is important to consider the climate, insulation, and efficiency of the HVAC system. In colder climates, the impact of lowering the thermostat may be less effective, as the percentage reduction in the temperature difference may be smaller. Furthermore, if the HVAC system is not properly maintained and tuned up, it can cost more in system efficiency.
Finally, it is worth noting that the size of the home and the number of occupants can also impact the effectiveness of turning down the thermostat. Bigger homes and those with more occupants will generally save more in absolute terms, while smaller homes and those with fewer occupants may see smaller savings.
In conclusion, while turning down the thermostat by 2 degrees can lead to significant savings and help the environment, it is important to address comfort issues and consider the specific circumstances of the building and its occupants to ensure the greatest chance of success.
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The savings in bigger homes
Turning down the thermostat by 2 degrees can lead to significant savings, especially in bigger homes. The savings are not just financial but also environmental, as lower energy consumption leads to reduced greenhouse gas emissions and helps combat climate change.
The exact savings depend on various factors, including climate, insulation, and the efficiency of the HVAC system. However, it is estimated that lowering the thermostat by one degree can reduce energy costs by around 1-3% per degree for each 8-hour period. This means that turning down the thermostat by 2 degrees could potentially save up to 6% in energy costs over an 8-hour period.
In a larger home, the absolute savings from lowering the thermostat by 2 degrees will be greater. For example, according to a study by UCL, in a typically sized house (85m² floor area), lowering the thermostat by 1 degree between 22°C and 18°C resulted in savings of around £130 per year. Bigger homes will save more than this in absolute terms, although the relative savings will be similar. The same study found that for every square meter, households used, on average, £1.10 less gas and 40p less electricity for each 1°C decrease.
To maximize savings, it is recommended to invest in a programmable or smart thermostat. These devices allow for different temperature settings at different times of the day and can automatically adjust the temperature when no one is home or when everyone is sleeping, helping to maintain a comfortable temperature with less energy consumption.
Additionally, ensuring proper insulation and sealing of the home can further enhance savings by preventing drafts and heat loss in the winter and reducing the workload on the air conditioner in the summer.
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The impact of location
Additionally, the type of housing and its energy efficiency vary across locations. The "home envelope," including factors such as windows, insulation, and weather stripping, influences how well a house retains treated air. For instance, older homes in colder regions may have poorer insulation, resulting in more heat loss and higher fuel usage, even with a slightly lower thermostat setting. Conversely, well-insulated modern homes in milder climates may see more fuel savings by turning down the thermostat, as they can maintain comfortable indoor temperatures with less energy consumption.
Regional fuel sources and pricing also impact the savings achieved by turning down the thermostat. In areas where electricity or natural gas prices are higher, the potential savings from reduced heating or cooling can be more significant. Conversely, in regions with lower energy costs, the savings may be less noticeable. Additionally, the efficiency of local HVAC equipment and the availability of energy-efficient models can vary by location, impacting the overall fuel savings when adjusting the thermostat.
The cultural norms and comfort preferences of a location can also influence the impact of turning down the thermostat. In regions with varying climates, such as Illinois, adjusting the thermostat by a few degrees may have a more noticeable effect on energy bills. However, in regions with more consistent climates, such as Florida, where prolonged warm weather leads to higher cooling bills, incremental adjustments may be necessary to yield noticeable savings.
Lastly, the availability and adoption of smart home technology, such as programmable or smart thermostats, can vary across locations. These devices can automatically adjust temperatures based on occupancy or pre-set schedules, maximizing energy efficiency and fuel savings. Regions with higher adoption rates of smart home technology may see more significant savings when turning down the thermostat by 2 degrees, as these technologies can optimize energy usage based on real-time data and user preferences.
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Frequently asked questions
According to the US Department of Energy, turning down your thermostat by 2 degrees can save you around 2% on your energy bill. This is based on the assumption that your heating and cooling system consumes less energy when the temperature gap is smaller, as it has to work less hard to maintain the desired indoor temperature.
The exact savings from turning down your thermostat by 2 degrees can vary depending on factors such as climate, insulation, the efficiency of your HVAC system, and the size of your home. Bigger homes tend to make greater savings in absolute terms, but the relative savings are fairly similar for different-sized homes.
Turning down your thermostat by 2 degrees not only saves you money but also helps the environment by reducing energy consumption and lowering greenhouse gas emissions. This contributes to combating climate change and reducing overall gas demand.
Yes, during colder weather, it is recommended to keep your thermostat at 68 degrees Fahrenheit when people are home and awake. When everyone is sleeping or away, you can turn it down by up to 10 degrees Fahrenheit.
Yes, besides turning down the thermostat, you can also invest in a programmable or smart thermostat that allows you to set different temperature profiles for different times of the day and week. Additionally, you can address any heat loss issues, such as drafts, to improve comfort and reduce heating bills.
