What Is Em Heat on a Thermostat?

TH1210DV1007 - Honeywell Home TH1210DV1007 - PRO 1000 Non-Programmable, 2H/1C, Vertical Thermostat

Emergency / Aux heat is the furnace. Heat is the heat pump but when the winter gets nasty the gas kicks in. First time I've ever seen the Em Heat button not

Smart WiFi Heat Pump Thermostat Panel C Line 24V Ground Source Heat Pump Air Conditioner Temperature Controller 1PC - AliExpress

What does 'EmHeat' do on my Honeywell thermostat? - Quora

Should you switch your thermostat to 'emergency heat'?

Honeywell TH4210D1005 Honeywell 5-2 Day, 2 Heat/1 Cool Thermostat

Heat Pump (With Aux/EM) Non-Programmable Thermostats at

EM Heat On Honeywell Thermostat: How And When To Use

HONEYWELL HOME, Heat or Cool, Manual, Low Voltage Thermostat - 2HFF8

Heater Thermostat Shows Emergency Heat - Air & Plumbing Today

CARRIER FV4CNB003] What does this 2 heat settings mean? I only use “Heat”. : r/hvacadvice