Auixiliary Heat will turn on automatically when heat can no longer efficiently transfer heat from the outside air to heat pump. This is when the outside is around 35-40 degrees and the indoor temperature is around three degrees cooler than the thermostat setting.
Should auxiliary heat come on?
What is Aux Heat? Auxiliary heat refers to your heat pump's backup electric resistance heating. Aux heat should only kick on when the heat pump can't produce enough heat to warm your home on its own .
When should AUX heat run?
AUX heat refers to your heat pump's “backup” electric resistance heating. This heat setting should only kick on when the heat pump can't produce enough heat to warm your home or if your heat pump goes into defrost mode.
What does AUX heat on mean on thermostat?
Sometimes mistaken for emergency heat, aux heat is a heat pump thermostat setting. ... If a heat pump is having a difficult time coming up to a certain temperature quickly due to extremely cold outdoor temperatures, the “aux heat” indicator means that a secondary heat source (generally gas or electric) has been deployed .
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.
What is 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 .
Is auxiliary heat bad?
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.
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 know if I have a heat pump with auxiliary heat?
If your climate often falls below freezing , it is likely you have a heat pump with aux heat.
Should heat pump and AUX heat run simultaneously?
Allow Heat Pump/Auxiliary Heat to Run Simultaneously: If you select Yes and there is a source of auxiliary heat , both auxiliary heat and heat pump will turn on. ... If after 2 hours the set point has not been met, the Thermostat will shutdown the heat pump and call on the auxiliary heat to meet the set point.
Can I turn on heat to defrost AC?
Your AC is freezing up for a reason, and simply thawing out the unit won't fix the root problem. If you want to solve the problem at the core, we can help. ... By turning the fan on it forces your AC's indoor fan to blow warm air non-stop over your AC's frozen coils . This will help the ice thaw faster.
Can you turn AUX heat off?
Technically, Honeywell doesn't have a built-in way to cancel auxiliary heat use, since it's designed to be a backup method. There are several ways to avoid using the auxiliary heat on your Honeywell thermostat. The most popular solutions include: Turning Down The Heat .
What is the best setting for heat?
According to ENERGY STAR, setting your thermostat to 68 degrees Fahrenheit (20 degrees Celsius) when you're home is the ideal balance of comfort and energy efficiency.
How do you turn off auxiliary heat on nest?
Go to SETTINGS > NEST SENSE (which is the 4 th setting from the left). Select “Heat Pump Balance”. Choose “OFF” . You must do this first, because the other settings won't be settable unless you turn off this feature (temporarily, just so you can access the options).
Is emergency heat more expensive than regular heat?
Using Emergency Heat May Cause Higher Heating Bills: Emergency heat is more expensive than its traditional counterpart , so you will probably see a spike in your utility bills if you need to use it. You should use emergency heat for the shortest period of time possible.
When should I put my thermostat on emergency heat?
It is used when there is something wrong with first-stage heating (the Heat Pump itself). In other words, if you notice your house is cold and it isn't heating properly and you went outside and noticed that a tree fell and crushed your heat pump, that would be a good time to switch to Emergency Heat.
