What does em HT mean on thermostat?

What does em HT mean on thermostat?

Emergency Heat
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.

Does rth6580wf have a battery?

A: This unit gets power from the furnace/ac unit, not battery, so it needs the C wire (24VAC common or neutral) to get power.

Can RTH9585WF control humidity?

Mobile App – Honeywell RTH9585WF The app offers a variety of controls & features. # Control your thermostat – You can adjust temperatures, set values for the heater and cooler separately (adjust the settings), control humidifier/dehumidifier, control the fan, and set/program schedules.

Does EM heat cost more?

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.

Does EM heat use more electricity?

Because EM Heat uses far more energy than a properly functioning heat pump-based system, the EM heat setting’s long-term use would be quite expensive and should be avoided. This is because backup systems, such as an electric strip or gas furnace, are less efficient at pulling heat.

How accurate is Honeywell humidity?

±4.0 %RH
Humidity accuracy: ±4.0 %RH typ.. Temp. accuracy: ±0.5 °C typ.

How long can I run em heat?

Aux heat kicks in when the heat pump is working but there’s a difference (typically 2 – 3 degrees) between your thermostat setting and the actual indoor temperature….Em heat vs. aux heat.

Normal heat pump at 30 degrees for 1 week Emergency heat at 10 degrees for 1 week
Hours use per day 12 hours 24 hours + 12 hours

Does Honeywell RTH6580WF work with heat pump?

RTH6580WF System Compatibility Heat pump without backup or auxiliary heat. Heat only with fan: Gas, oil, or electric heat without central air conditioning. Heat only (no fan): Gas, oil, or hot water heat without central air conditioning.

Which wireless room thermostat is best?

The best smart thermostats you can buy

  • Tado Smart Thermostat: The most flexible smart thermostat.
  • Nest Thermostat E: The simplest smart thermostat to use.
  • Honeywell Evohome: The most comprehensive room-by-room heating system.
  • Hive Thermostat Mini: The best Hive thermostat.
  • October 12, 2022