Nest Airwave is a very useful energy-saving feature of the Nest thermostat when running your air conditioner. The Nest Airwave feature helps to save energy by sending signals to the AC to stop when the optimum temperature is reached in the room, but the HVAC fan is still active and continues to circulate cool air through the inner coil that is cold. Thus, it aids in maintaining a cool temperature in the room even if the AC compressor is stopped. So, this mechanism greatly helps in saving energy. We will explain you in detail in this post.
Nest Airwave is a fantastic idea conceived by Nest engineers that save energy and optimizes your HVAC system. The Nest Airwave feature is ingeniously designed, which is added to the thermostat. The Nest Airwave mechanism is so wonderfully designed that you will not notice when the AC stops working as the cool air continues to come out of the vents. Nest Airwave is one of the best features that helps save a lot of energy to lead a manageable life. It is an amazing investment to lead a comfortable living.
How does Nest Airwave work?
The Nest Airwave function helps in reducing the energy consumption as the compressor stops working early and the HVAC system consumes less power. However, the fan does not stop working. So when the fan blows air over the already cooled coil, the AC vents blow out cool air. This energy-saving mechanism helps in maximizing the efficiency of your air conditioner. When the compressor is turned off, the Air Conditioner does not use much energy to run. So, much energy is saved due to the reduced power consumption as the compressor is stopped prematurely.
To understand how the Nest Airwave works, you need to understand how AC works.
The air conditioning system consists of two energy-consuming components. They are the compressor and the fan. The compressor uses a lot of electricity, while the fan consumes less. Generally, other thermostats turn off the air conditioners when they reach the optimum temperature. However, they look past the fact that the compressor coils can produce cold air for 10 minutes more even after the compressor is turned off. Nest Airwave feature is built on this technology.
Will Airwave work in my home?
If your home is new and well insulated, then the Nest Airwave works even in the high humidity areas outdoors. The Airwave feature activates if you require low humidity in your home. The Airwave doesn’t work if the humidity inside your home is high. Nest will run the compressor for the entire cooling cycle to decrease the humidity if it is very humid.
When is Airwave activated?
When the indoor humidity level is dropped below a certain level, Nest automatically activates the Airwave feature and calculates the optimum level for your home. You can see when the Airwave is turned on the Nest Screen.
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What is the mechanism through which Nest Airwave saves energy and HVAC?
A standard HVAC system has many vital components. HVAC systems have an air handler and inbuilt furnace burners that burn the natural gas, which travels through a heat exchanger, and then the heat is blown around the house with the help of a blower fan.
In the HVAC system, the air handler manages the air and spreads/pushes it around the home. The furnace part heats the air in the room by burning natural gas. The air handler blows hot and cold air throughout the room depending on the thermostat’s heating or cooling mode.
During the summer, when you want cool air in the house, the AC uses a closed system that removes hot air from the house by transferring it to the outdoor condenser and compressor system. The outdoor unit is like a box with grills.
The heat in the house is removed by a coil that has a small pipe-like structure bent in rows as the refrigerant flows through the air conditioner. The coil is placed above the fan in the ventilation unit and transfers heat that is filled with cold refrigerant. The warm air in the house is blown out over the cold coil, and cool air circulates in the house. The two main components that cool down your house are the blower fan in the ventilation unit and the air conditioning compressor.
The air conditioning compressor uses much energy, while the blower motor consumes less power. Surprisingly, the blower may sound very loud, but the air flowing through it is energy efficient and effective. So, the Nest thermostat uses this principle to save energy with the airwave feature.
How to set up Nest Airwave?
The Nest Airwave feature is available in the Nest Generation E Thermostat and the Nest Generation 3 Thermostat. Given under are the steps to Nest Airwave on the Nest Thermostat.
Step 1: Download the Nest app on the device. Install and configure the Nest Thermostat in the Nest app.
Step 2: When you open the Nest app, you will notice a gear-like settings icon in the upper right corner. Click on the icon.
Step 3: As you scroll down the menu to the bottom of the page, click on the Airwave menu item.
Step 4: Drag the menu bar to turn on or off the Nest Airwave feature.
How is Nest Airwave helpful in saving energy?
Nest Airwave is highly useful in summer as there is a lot of electricity demand. During summer, the electricity grid is congested due to high demand, and the electricity companies charge premiums. When most people use air conditioners simultaneously, the load on the electricity grid increases, and the increased energy consumption can cause problems on the grid. To reach the demand, the electricity companies need certain utilities to produce more electricity. This leads to higher fossil fuel emissions and higher electricity costs.
So, Nest Airwave can reduce your power consumption and helps you save energy. You can also see a drastic change in the total power consumption during high demand.
How much energy does Nest Airwave save?
According to the studies, a smart thermostat can reduce energy consumption by 10-15% annually. Studies have shown that a smart thermostat like the Nest thermostat can reduce energy consumption by 10-15% annually. You can save more energy by activating the Home and Away functions of the Nest thermostat, which enables more environmentally friendly temperatures.
The energy saving depends on how much energy you can save in ‘peak hours’ as part of the program. Based on the Nest website, Peak hours usually occur 6 to 12 times a season on scorching summer or freezing winter days. Nest claims that if you have registered under the Seasonal Savings Program, you can save up to 10% of your HVAC bill. Along with that, the Rush Hour 7 program benefits those willing to turn off the air conditioning or heating during peak power consumption. When you sign up for this program, your device will automatically communicate during peak hours, and your Nest thermostat will adjust accordingly. You have the option to cancel the temperature change at any time. However, there is no credit for using less energy.
But you should notice that the total energy savings depend on all the seasons in a year. Using the Nest Airwave feature, it is not easy to say precisely how much energy you save during summer. The Home/Away function and eco mode settings will also save energy consumption. So, you can increase your energy savings by using the Airwave function in combination with other smart functions of the Nest Thermostat.
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