What Does Aux Heat Mean on thermostat?

It’s one of the most common questions we get asked here at Home Advisor: “What does aux heat mean on my thermostat?” Aux heat is a term that can be found on several different thermostats, and it is used to describe the heat that comes from a heating system (as opposed to emergency heat).

If you’re wondering what aux heat means, then you’re not alone.

What Does Aux Heat Mean

If your thermostat is set to “Aux Heat,” it means that your system will use electric heat strips as its primary source of heat. This is different from “Emergency Heat,” which uses the same electric heat strips but only as a backup to your system’s main source of heat (usually a heat pump). While Aux Heat is more expensive to use than other sources of heat, it can be a lifesaver in extremely cold weather when your heat pump isn’t able to keep up with demand. If you’re not sure whether or not to use Aux Heat, consult with a qualified HVAC technician.

Auxiliary, or aux, heat is a feature on many modern thermostats that provides a little extra warmth when needed. Here’s how it works: When the temperature in your home starts to drop, the aux heat kicks in to help bring the temperature back up to where it should be. Auxiliary heat is usually powered by electricity, so it can be more expensive to run than your home’s main heating system. That’s why it’s important to know when to use aux heat and when to let your home’s main heating system do the work.

Here are a few tips for using aux heat:-If you’re going to be away from home for an extended period of time, you can set your thermostat to use aux heat so that your home stays warm while you’re gone.-During extremely cold weather, aux heat can help keep your home comfortable.-If you have a room in your home that is particularly difficult to keep warm, using aux heat in that room can help. Knowing when to use aux heat and how to properly use it can help you save money on your energy.

Read also – How To Change Aux Heat Setting On Honeywell Thermostat

How To Stop Auxiliary Heat From Coming On

There are a lot of tips on how to stop the auxiliary heat from coming on, but some people don’t know how to turn it off. To make sure that you can easily shut off the auxiliary heat, you can make sure that it doesn’t come on automatically.

You can turn off the auxiliary heat when you are not using it. You can control the temperature by simply flipping a switch. It doesn’t matter if you leave the room for a little while. but the most important one is to get a thermostat with a timer. There are many types of thermostats out there, but the best one is one with a timer.

You can adjust the timer so that it will turn off the heat at a certain time. If you do this, you will no longer have to worry about burning the house down. If you want to get rid of the auxiliary heat, you should use the timer on your thermostat. Once you have a timer, you will need to adjust the time to fit your needs. You can turn the heater off for the entire day, or you can leave it on for a short period.

If you think that the auxiliary heat is coming on, you can quickly turn it off by using the switch. After you turn off the heat, you will not have to worry about it again. You can also turn the heat off using the control panel. You can use a thermostat. It is a device that senses when the room temperature goes above a certain point and then turns on and off the heating or cooling unit.

What To Do If Auxiliary Heat Shown On Thermostat? 

  • 1. When the temperature drops to 45°C or more, turn off the heater.
  • 2. Remove all hot water from the house.
  • 3. If you have not already done it, place a sheet or blanket under the door handle and close the door.
  • 4. If you have not yet done it, move the thermostat to the highest setting (it will only last 20 min).
  • 5. If the temperature has dropped to 35°C or below, turn off the heater.
  • 6. Remove all hot water from the house.
  • 7. Place a sheet or blanket under the door handle and close the door.
  • 8. Move the thermostat to the highest setting (it will only last 10 min).

How Do I Know If Auxiliary Heat Is On?

In most cases, it would be on as long as you turn on your heat, but not always. I suggest that you check your fuse box to see if you have any fuses that go to the thermostat or other device.

First, you need to check the manual for your furnace. Then you look at the thermostat. If you see a plus sign (+) under the thermostat, it means that auxiliary heat is on. If you see a minus (-) under the thermostat, it means that the auxiliary heat is off. The invention relates to a

How Long Should Auxiliary Heat Run?

This depends on the size of the boiler and the amount of steam generated. Generally speaking, auxiliary heating runs for one hour after the main heat is turned off. However, some boilers will require a longer time, while others will only require 20 minutes.

You can contact your boiler manufacturer to determine exactly what is required. It depends on the size of your house. The smaller the house, the more time the auxiliary heat will run.

What Is Auxiliary Heat and What Does It Mean for Your Heater?

Aux heat is the name of a heat pump thermostat setting. This setting is used when you want to conserve energy by heating or cooling only the rooms you need, and not the entire house. It can also be called a “split system” or “zone control” setting.

When you select this setting, the thermostat will turn on and off to keep the temperature within your set range. In other words, it will turn the heat on and off to maintain the set temperature.

Why Your Thermostat Shows Aux Heat

Because the term aux heat is used to define the heater system that is controlled by a separate temperature sensor located within the furnace.

The auxiliary heater is only activated when there is a temperature differential between the outside air temperature and the desired inside temperature.


There are two types of heaters: electric and gas. The electric heater runs off a power source. When the power is turned on, the heater starts to operate. In the case of a gas heater, the gas is turned on and the flame is lit. The gas is used to heat the water. Once the water is heated, the heat is transferred to the air in the house. This is how the heat is distributed.

The thermostat can be set to turn the heat on or off based on the outside temperature. It can also be set to automatically adjust the heat for you. This can be helpful if you are out of town, or if you have an older house that needs more heat than a modern home.

However, if you don’t have the time to read the manual, or if you don’t understand the instructions, you may end up with an overheated or under-heated home.

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