Updated: February 19, 2024
The lower the temperature outside drops, the greater the heating needs are of the home. As the temperature drops, the heat pump has a harder time absorbing heat, reducing the amount it can bring into the home. When the outdoor temperature is below the balance point, the heat pump needs help from a backup heat source, such as a resistant heater or furnace. When the outdoor temp is higher than the balance point, the heat pump alone can keep the home comfortable.