The emergency heat setting can give your HVAC system an extra boost, but knowing when and how to use it properly can help you ...

Many thermostats have a setting called EM heat, emergency heat or auxiliary heat. You shouldn’t normally rely on it warm your house, but it’s useful when the thermostat’s regular settings aren’t ...

Many thermostats have a setting called EM heat, emergency heat or auxiliary heat. You shouldn’t normally rely on it warm your house, but it’s useful when the thermostat’s regular settings ...