Heat pump systems have two units - one outside the home and one inside the home. The unit outside your home is a heat pump and the unit inside the home is the auxiliary heating system. ... The emergency heat setting has to be manually switched on and should only be used in temperatures below 30 degrees.Apr 30, 2018
What is the difference between heat and Em heat on thermostat?
“Emergency heat” means constantly using the backup heat Switching your thermostat to emergency heat is you telling your heat pump this: ... The backup furnace works more efficiently than the heat strip, but less efficient than the heat pump pulling in heat.
What does em mean on a Honeywell thermostat?
Emergency Heat
What does Emer mean on thermostat?
Emergency Heat mode
What is EM heat vs heat on a thermostat?
What is EM heat on thermostat settings? Short for “emergency heat,” it is a setting that controls your home's back-up heating system. If you have an emergency heat thermostat setting, you likely have a heat pump, as well as a gas, oil, electric, or hot-water back-up system.Jan 14, 2021
What does em mean on a heat pump?
emergency heat
What is EM heat setting on Honeywell thermostat?
The EM HT (Emergency Heat) feature allows the user to use a backup heat source when the heat pump is not working. The Emergency Heat feature locks out the heat pump compressor so that only backup heat is used. This is typically used until a heating and/or cooling contractor can troubleshoot or fix the heat pump system.Dec 1, 2020
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. ... When the temperature inside your home drops a certain amount below the goal temperature (usually 1.5-2 degrees), your thermostat energizes auxiliary heat.Feb 25, 2020
What is the drawback of emergency heat?
What is the drawback of emergency heat? The supplemental heat costs more to operate than a heat pump.
How long can you leave emergency heat on?
Normal heat pump at 30 degrees for 1 week Emergency heat at 10 degrees for 1 week
----------------- ----------------------------------------- ---------------------------------------
Watts per hour 3,000 watts 3,000 watts + 15,000 watts
Hours use per day 12 hours 24 hours + 12 hours
Number of days 7 days 7 days
Total kWH 252 kWH 252 kWH + 1260 kWH
What is the difference between emergency heat and regular heat?
In normal mode, a heat pump works by pulling in heat from the outside. The heat pump setting's emergency heat will usually switch on and off automatically during brief periods when the outside air gets too cold. Your heating system will then use the secondary system with your normal heating.Jan 14, 2021
When should I set my thermostat to emergency heat?
When Should I Switch My Heat Pump Thermostat to Emergency Heat? [FAQ] 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.Jan 22, 2014
What is the difference between heat and emergency heat on a thermostat?
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.Apr 30, 2018