Does Auxiliary Heat Use More Electricity?

As we mentioned above, AUX heat usually costs up to 50% more than heat transfer, which means if your system is running on AUX heat when it shouldn’t be, your heating bill is likely going to be a lot higher than you’d like it to be.

Which is more expensive auxiliary heat or emergency heat?

Aux heat comes from the same heat source as emergency heat, but aux heat works together with your heat pump, so it’s less expensive than emergency heat.

Is it bad if auxiliary heat comes on?

Is AUX heat bad? The short answer is no. In fact, aux heat is a critical mechanism that keeps your heat pump properly running when the outdoor temperature drops. Since this type of unit doesn’t work the same as a furnace, it can get cold.

How often should AUX heat come on?

When should my auxiliary heat come on? When outside temperatures drop below 40 degrees. While undergoing the defrost cycle. When there is a 3 degree difference or more in the current temperature in your home and the thermostat setting.

Why is my auxiliary heat always on?

The AUX heat setting on an HVAC unit usually turns on when you need heat fast. If this secondary heating system is constantly running, it may mean that the weather outside is very cold or that the thermostat is set higher than normal. It’s also possible that a part of the heat pump is malfunctioning.

Why Does My Honeywell thermostat say auxiliary heat?

What does it mean? The “AUX Heat” mode is usually an indicator that it’s freezing outside, and your is heat pump is using a secondary backup heat source – your auxiliary heat—to keep your home at your set temperature.

What’s the difference between auxiliary heat and emergency heat?

Auxiliary heating turns on automatically to help heat your home more quickly if the temperature drops suddenly. The emergency heat setting has to be manually switched on and should only be used in temperatures below 30 degrees.

Should outside unit run when heat is on?

Heat Pump Operation

The air conditioning coils may sit atop of the furnace, and they likely share a blower fan, but otherwise the units operate independently of one another. Therefore, when you run the furnace in the winter, the outside unit should not run as it only functions as part of your air conditioning system.

How do I turn off auxiliary heat?

One of the simplest things you can do to keep your Honeywell thermostat from switching to auxiliary heat is to lower the temperature in your home. Setting the thermostat for somewhere between sixty to sixty-eight degrees is all you should need to do to get the problem under control.

Is it OK to run heat pump on emergency heat?

If you have an all-electric heat pump, then the answer is a definite Yes! It is much more expensive to run your heat pump on Emergency Heat. And as the name implies, should only be run in an emergency until your heat pump can be repaired.

How do I know if my auxiliary heat is on?

Just feed the electronic probe into the supply outlet. If the heat pump is off you will know it. You cannot heat a house with 55 degree air.

Why is my heat pump blowing cold air when the heat is on?

Defrost mode basically means your heat pump temporarily switches to cooling mode. This forces the outdoor coils to heat up, melting any frost or ice that has built up. And because the heat pump switched to cooling mode, it will blow cold air into your home for a few minutes.

Should you leave your heat pump on all the time?

While heat pumps are the most cost effective way to use electricity to heat your home during the cooler months, leaving them running day and night is not economically efficient. According to Energywise, you should switch off your heat pump when you don’t need it. This is to avoid excessive energy waste.

At what temperature do heat pumps become ineffective?

Heat pumps do not operate as efficiently when temperatures drop to between 25 and 40 degrees Fahrenheit for most systems. A heat pump works best when the temperature is above 40. Once outdoor temperatures drop to 40 degrees, heat pumps start losing efficiency, and they consume more energy to do their jobs.

What is usually used for auxiliary heat?

Auxiliary heat is automatically activated when there’s not enough outdoor heat. … This secondary heat source is typically electric heating coils integrated into the system. As outdoor temperatures rise and secondary heat is no longer required, the unit automatically turns off the auxiliary electric coils.

Do all heat pumps have auxiliary heat?

If you live in a cold climate, your heat pump probably has an auxiliary heat option. If you own a snow shovel, your heat pump probably has an auxiliary heat option. Heat pump auxiliary heat is a kind of backup heating system that kicks in when the outdoor temperature drops below freezing. …

How do I know if my heat pump is working properly?

The main way to tell if your system is working as intended is to simply listen to the unit running. You can hear the system when it turns on, when the fans begin to work and stop, and when air passes through the ducts. Other than that, the unit itself should be quiet, without any groaning or creaking sounds.

Why is my auxiliary heat not coming on?

The most common cause of this failure is low airflow across the heaters. The most common source of low airflow is a clogged air filter, but can also be caused by a dirty indoor coil or closed/restricted ductwork.

Should I run auxiliary heat on?

Basically, auxiliary heat uses electric resistance heating to heat your home. Since electric resistance heating is much less efficient than your heat pump, you only want it to be on when necessary. … To recap, auxiliary, or emergency heat should only be on when the outside temperature is below freezing.

When should heat strips come on?

Demand. The second most common time that the heat strips will come on is when there is a “demand” for them. This means that someone has set the temperature more than three degrees above the thermostat setting. Three degrees isn’t an absolute though.

When should you switch from heat pump to emergency heat?

When Should I Switch My Heat Pump Thermostat to Emergency Heat? Short answer: You should only set your heat pump’s thermostat to “emergency heat” when your heat pump stops heating altogether. And in that case, you should also call a professional for help.

Is a heat pump better than a furnace?


Under ideal conditions, a heat pump can transfer 300 percent more energy than it consumes. In contrast, a high-efficiency gas furnace is about 95 percent efficient. Heat pumps are powered by electricity, so you can save substantially on fuel consumption.

What temperature should I set my heat pump in the winter?

Ideal Winter Heat Pump Temperature Settings

According to the Department of Energy, 68°F is the sweet spot that balances comfort and energy efficiency during the fall and winter months. When your home is occupied and when family members are awake, a heat pump setting of 68°F keeps the living areas reasonably warm.