summer thermostat setting for 2 story house

Optimal Summer Thermostat Setting for a Two-Story House

Are you wondering what summer thermostat setting is best for a two story house? With rising temperatures, setting your thermostat correctly will not only help you achieve the perfect climate for your home, but also help you save money on your energy bills.

Quick Summary

  Summer Thermostat Setting for Two-Story House: Optimize Comfort in Summer

Setting an optimal summer thermostat temperature for a two-story house can help to maximize energy efficiency while ensuring that the home remains comfortable. The best temperature setting for the air conditioning will depend on personal preference, but a good middle ground to aim for is 78°F. Setting the thermostat this high can make a single-digit reduction in overall energy usage compared to standard settings. During cooler hours, consider setting the thermostat to 80°F when the house is empty and 78°F when the house is occupied.

For two-story homes, those in the upstairs space might want to set the thermostat 2-3 degrees higher than the rest of the house. During the summer, having the upper level of the house at a higher temperature can help to reduce the need for additional air conditioning on the lower floor due to air convection.

As an added benefit, setting the thermostat a few degrees higher in the summer allows homeowners to save money on their energy bills. Depending on the size of the two-story house, an accurate thermostat setting can translate to savings of up to 10 percent off the annual cooling costs.

Summer Thermostat Setting for Two-Story House

Are you looking for tips on what thermostat settings to use in summer to optimize comfort in your two-story home? This summer thermostat setting guide is perfect for you! Read ahead to learn the best practices and methods to keep your home comfortable all season long.

Tips for Ideal Summer Thermostat Setting for Two-story House

  • The optimal temperature for the summer thermostat setting in a two-story house should be between 74 to 76 degrees Fahrenheit.
  • Keep the second story temperature 1 or 2 degrees lower than the first floor temperature as heat rises.
  • It’s important to set your thermostat fan to ‘auto’ instead of ‘on’, so that it doesn’t run constantly and waste energy.
  • To save energy, try setting the thermostat temperature a few degrees higher during the day when no one is home.

Thermostat Setting For Improved Indoor Air Quality in Two-Story Homes

In addition to temperature settings, you can also adjust the thermostat to improve the indoor air quality. Most programmable thermostats can be set to humidify or dehumidify, depending on the time of year. If your two-story house tends to be humid in the summer months, you can set the thermostat to dehumidify to remove the excess moisture from the air and make the house more comfortable. Setting the thermostat to humidify in the winter months can help add moisture back into the air and make the home feel warmer.

Schedule to Increase Thermostat Efficiency In A Two-Story Home

Using a programmable thermostat to create a schedule can help increase the thermostat’s efficiency. You can set the thermostat to lower the temperature when the house is unoccupied and raise the temperature when people are at home. Taking seasonal breaks to change the thermostat settings can also help reduce energy bills.


Following these tips and tricks for summer thermostat setting for two-story house can help optimize comfort in summer. Investing in a programmable thermostat can help make the process even easier. If you need any help with your thermostat settings, don’t hesitate to contact your local HVAC technician for assistance.

Personal Experience

What should thermostat be set on in the summer for two-story house?

As an expert in climate control, I believe the most important part of setting the thermostat for a two-story house during the summer months is about comfort and keeping energy costs down. For a two-story home, the thermostat should likely be set a bit higher than for a single-story home for a variety of reasons. For example, taller buildings generally hold the heat longer since the hot air rises inside the upper stories. To make sure both floors are comfortable, I normally suggest homeowners set the thermostat a few degrees higher than what they’d set for a single-story home, usually around 75-77 degrees. Of course, you can adjust the thermostat to whatever keeps all residents in the home comfortably cool while also keeping energy costs low.

To maximize energy efficiency and cost-effectiveness, I also recommend that homeowners use at least two thermostats, one for the upstairs and one for the downstairs. This is the best way to ensure the upper level and lower level of the house are both comfortable, as the upstairs can stay a couple of degrees warmer than the downstairs and still provide the same level of comfortable cooling. If possible, I recommend opting for a programmable thermostat to allow for maximum control and optimization of the climate of both floors.

Beyond setting the temperature at the right level, I also recommend utilizing ceiling fans for distributing cool air throughout the home and cyclic cooling for the whole house. By utilizing these strategies, homeowners are sure to find the perfect balance between comfort and efficiency. Seeking out the help of a certified HVAC professional is also a great way to maximize the performance of your air conditioning system and get the most out of your summer thermostat setting.

Frequently Asked Questions

What should thermostat be set on in the summer for two-story house?

The thermostat for a two-story house in the summer should be set a couple of degrees apart from one another. Generally, it is recommended to set the thermostat on the upper level two degrees higher than the thermostat on the lower level. This helps to ensure the even distribution of cool air throughout both floors.

How do you balance the heat in a two-story house in summer?

The best way to balance the heat in a two-story house in summer is to set the thermostat at the highest floor to your desired temperature. If the upper level is too hot, you can also fan the air up from the lower floors and close off any air movement on the higher floors. Additionally, you can reduce the temperature on the lower floors and keep the upper floors warmer by using blinds and curtains to block direct sunlight during the hottest parts of the day.

What do most people set their thermostat to in summer?

Most people set their thermostat to between 70 and 75 degrees Fahrenheit in summer. This average temperature range is the most popular among consumers as it is comfortable, energy-efficient, and cost-effective. About half of respondents use this temperature range while nearly 20% opt for 66 to 70 degrees.

Should upstairs thermostat be higher or lower than downstairs in summer?

In summer, the upstairs thermostat should be set lower than the downstairs thermostat. This improves air circulation, as the cool air will rise from downstairs to upstairs and replace the warm air. Conversely, in winter, the upstairs thermostat should be set higher than downstairs, as this will prevent longer hot air residence times in the upper part of the house. Proper thermostat settings can save energy and money, while also keeping your home comfortable.

Do two story houses need two smart thermostats?

Yes. Two story homes need two smart thermostats in order to effectively control temperature throughout both stories. By installing a smart thermostat on each level of the home, you can ensure that the temperature is comfortable and efficient wherever you are. This will help you save money on energy costs and provide a more customized climate control experience.

Where should a thermostat be placed in a two story house?

The ideal place to install a thermostat in a two-story house is near the center of activity, such as the staircase or landing, and at an average height between the first and second floors. This is the most effective spot to ensure uniform temperature levels and maximum comfort throughout the entire home. Additionally, never install a thermostat in direct sunlight, near heating or cooling vents, or in a room with a lot of drafts.

What are the disadvantages of a smart thermostat?

The disadvantages of a smart thermostat include its cost, difficulty of setup and limited availability. Smart thermostats are generally more expensive than conventional digital thermostats, and can cost up to several hundred dollars. In addition, the setup process can be challenging and require technical knowledge, though most models come with an install guide. Lastly, availability can be limited as they are mostly found in bigger retail stores rather than in local hardware stores.

Should upstairs and downstairs thermostat be set the same?

No, upstairs and downstairs thermostats should not be set the same. Instead, set the thermostat on the upper floors a few degrees higher than the downstairs thermostat. This will help ensure that the warm air from the lower level will move up, effectively warming the upper floors. For best results, always adjust the thermostats according to the temperature outside to ensure energy efficiency and comfort.

What should thermostat be set at in 2 story house?

For a two-story house, the ideal thermostat setting is 72° on the first floor and 75° on the second floor, according to the U.S. Department of Energy. This will help keep your house comfortably warm while also conserving energy. Therefore, the thermostat in a two-story house should be set at 72° on the first floor and 75° on the second floor.

What should you set your upstairs and downstairs thermostats?

To keep both floors comfortable, set the downstairs thermostat to your desired temperature and set the upstairs thermostat two degrees cooler. This way, the downstairs floor will get an extra boost of warmth. Therefore, the downstairs thermostat should be set to your desired temperature, and the upstairs thermostat should be set two degrees colder.

How do you balance upstairs and downstairs temperature?

To balance the temperature upstairs and downstairs, set the bottom floor’s thermostat about 2°F higher than the thermostat upstairs in the summer. This will help circulate cold air from upstairs to cool the downstairs. It is also recommended to have separate thermostats for the upstairs and downstairs, if possible, so that they can be adjusted to keep the optimum room temperature in each area.

How do you set a thermostat for heat in a two-story house?

Setting the thermostat to heat a two-story house can be done by following the two-degree rule. Start by setting the thermostat on the lower floor a few degrees higher than the desired temperature. Then set the thermostat on the upper floor two degrees cooler than the lower floor. This will ensure that heat is evenly distributed throughout the two floors. Additionally, adjusting the thermostat when you are away from home or sleeping can significantly reduce energy bills.

Final Thoughts

In summary, based on the information provided, it appears that the best optimal summer thermostat setting for a two-story house is dependent on the unique energy needs of the particular house and its inhabitants. While the optimal set points for the first and second-floor may differ, a combination of settings within the range of 76-78 degree Fahrenheit for the first floor, and 74-76 degree Fahrenheit for the second floor should ensure comfort in the house and also conserve energy. Additionally, an adjustable thermostat with a programmable option can be set to conserve further energy while delivering the necessary comfort level.