On your thermostat, EM heat stands for emergency heat. It is a secondary heating system backup for heat pumps in case your primary heating system fails or can’t keep up. However, many people wrongly assume they should use EM heat when the temperature drops to sub-freezing. This isn’t true, as the system isn’t designed to ... Read more
Home Magazine
On your thermostat, EM heat stands for emergency heat. It is a secondary heating system backup for heat pumps in case your primary heating system fails or can’t keep up. However, many people wrongly assume they should use EM heat when the temperature drops to sub-freezing. This isn’t true, as the system isn’t designed to ... Read more
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