What Does a Thermostat Do When It Gets Too Cold?

12 mins read

Last Updated on September 16, 2022

When it gets cold, your body starts to lose heat, a condition called hypothermia. It affects organs and can lead to complete organ failure and even death. Exposure to extreme cold can cause this condition, and even a few hours in a freezing pool can result in the same condition. According to a new consumer energy report, you should keep your air conditioning set between 78 and 85 degrees when working, and 82 degrees when sleeping.


The optimal temperature for your home during winter is 68 degrees Fahrenheit (68 degrees Celsius). However, the exact number depends on your family’s needs. Young children or the elderly may want to set the temperature a little higher. Warm-blooded individuals can stay comfortably at 58 degrees. This information will help you determine the ideal temperature for your home. Nevertheless, if you want to keep your home at a comfortable temperature, here are some tips to keep the thermostat at a good temperature.

The ideal temperature for your house during winter is between 50 and 55 degrees, as this will prevent pipes and appliances from freezing. The last thing you want to happen while you’re on vacation is to wake up to a frozen dishwasher or a flooded basement. Nevertheless, even if you’re not in your home, you should ensure that heat is still flowing through the house. You can use energy tracking tools to learn how much you spend on energy each month and find out how to save more money.

Lowering the thermostat when you’re away can help you save money on heating. Aim to keep the temperature between 60 and 65 degrees when you’re not home. However, you should also consider whether the house is safe for animals or houseplants. Some animals will tolerate temperatures between 60 and 75 degrees, while houseplants and pets will tolerate a temperature between sixty and 65 degrees. However, you should check the actual temperature outside and the local weather before lowering the thermostat.


Thermostats are devices that regulate the temperature of a room. They are powered by a transformer and activate the heating and cooling unit’s corresponding heat and cool functions. As the temperature in the room changes, the thermostat moves the lever to the right and activates the heating and cooling system’s corresponding functions. Depending on the type of thermostat, this can be a simple or complex device.

A thermostat is made of two components – a combustible wax cylinder and a metal needle. When the engine coolant is cold, the thermostat prevents the coolant from leaving the engine. When the temperature rises, the wax expands and pushes the metal needle outward. As the coolant warms, the cylinder valve opens, allowing hot coolant to flow through.

Thermostats work like a closed loop control device that seeks to minimize the difference between measured and desired temperatures. Sometimes, thermostats combine the sensing and control action elements of the controlled system. The word thermostat derives from the Greek words thermos and statos. If the temperature in your home is too high, the thermostat will switch the heat off. The room will begin to cool.

To prevent overheating and excessive cooling, modern car engines are designed to operate in a certain temperature range. Thermostats sense the temperature of the coolant and open or close when necessary. During cold starts, the thermostat blocks the flow of coolant to the radiator. This ensures the coolant has time to absorb the heat before entering the radiator. The parts of a thermostat include a wax, a cylinder, and a valve.

Functions of a thermostat

For those of us new to the auto industry, a thermostat can seem almost magical. But in reality, it is far simpler than it looks. Located between the engine and the radiator, thermostats are made up of internal parts that control how hot or cold the engine becomes. The coolant that circulates through the radiator absorbs heat from the engine and passes through the thermostat’s down hose. As the temperature increases, the wax in the cylinder begins to melt, forcing a rod to push out of the cylinder and open the valve. The same mechanism works for the opposite end of the cylinder.

A thermostat closes when the engine is too cold and prevents the coolant from leaving the engine. As the engine warms, the coolant in the engine warms up as well, causing the engine to become overheated. The thermostat opens when the engine reaches the correct temperature, letting fresh coolant into the system. The warm coolant cycles out to the radiator for cooling. However, it is important to note that if a thermostat is stuck, the Check Engine light will illuminate.

A thermostat works by regulating the temperature by combining the control action and the sensing element of a system. It tries to minimize the error between the measured and desired temperature. Its name is derived from the Greek words thermos, which means temperature, and statos, which means “status.”

Checking for malfunctions

If the thermostat in your home is too cold, it could be caused by a number of factors, including a malfunction. This article will go over some common issues with thermostats and provide some solutions to fix them. Make sure you check the settings on your thermostat and replace any faulty ones, if needed. Check the battery level of your thermostat as well. A bad battery can cause many malfunctions, including causing the thermostat to not work properly.

A temperature reading that is more than one degree higher or lower than the actual temperature of the room may indicate a thermostat that is not accurate. This may occur due to a thermostat being in an area exposed to direct sunlight or another heat source, or because the thermostat is not level. A dirty thermostat can also lead to continuous operation or short cycling, both of which erode energy efficiency. Make sure to take the time to check the thermostat’s settings.

Another common cause of no-heat conditions is a dead battery. Dead batteries will display a blank display. Changing the batteries will remedy the problem. A loose or corroded terminal screw can also cause the thermostat not to function properly. If you notice any corrosion, you may need to replace the thermostat. Otherwise, check the wiring and replace it if necessary. Depending on your model of thermostat, you may not have to replace the thermostat altogether.

In addition to a malfunctioning sensor, you should check the placement of the thermostat. It could be improperly placed or dirty. A faulty sensor may lead to inaccurate readings. Changing the thermostat may not solve the problem, but a faulty sensor is a good start. A non-digital thermostat can also be off level due to a jarring bump. To fix this, you can use a carpenter’s level. A mechanical thermostat may have a stuck heat anticipator, which can be freed by pushing the arm down. If this is not the problem, you may need to relocate it.

Saving money by upgrading to a smart thermostat

If you’ve been thinking about investing in a new thermostat, you’re not alone. According to the EPA, switching to a smart thermostat can save you as much as $180 per year on heating and cooling costs. A smart thermostat will do the thinking for you and adjust the temperature when you’re away from home. Compared to a programmable thermostat, smart thermostats are easier to use, enabling you to maximize your savings.

Not all smart thermostats are compatible with all smart home systems. Make sure to research the compatibility of the smart thermostat with your home’s smart-home system before purchasing one. Some thermostats are compatible with major systems, including Samsung SmartThings and Apple HomeKit. If you don’t know how to install a smart thermostat, contact an electrician. Also, make sure the thermostat is located near a Wi-Fi router. If it’s not, you may need to purchase a Wi-Fi range extender.

A smart thermostat can monitor your home’s temperature and analyze its energy use to determine the optimal temperature. Some models even work with other smart devices in the home. And if you’re unsure of which thermostat is best for your home, consider the many brands that are available in Phoenix. This will give you a leg up on your competition. You can even get incentives from your utility company to save money on energy bills!

Another great benefit of a smart thermostat is that it learns your habits. They may be able to detect when you’re away and automatically turn the heat or air conditioning back on. In addition to learning your habits, a smart thermostat can also watch for motion and turn the HVAC system on when you’re away. The result is a reduction in energy bills. You’ll be able to save money on heating and cooling costs in no time.

About The Author

Gauthier Daniau is a freelance problem solver. He first discovered his knack for trouble-shooting when he was still in diapers - and hasn't looked back since. When he's not slaying zombies or internet ninjas, GAUTHIER enjoys working with animals of all shapes and sizes. He's also something of a social media expert and loves to get lost in numbers and figures.