What is auxiliary heat
Auxiliary heat, also known as auxiliary heating or supplemental heat, is a backup heating system used in conjunction with a primary heating source, typically a heat pump. Its purpose is to provide additional heat when the primary system is unable to meet the required heating demand, often during extremely cold weather.
Auxiliary heat is usually electric resistance heat, which is less efficient than a heat pump. It is designed to kick in when the outdoor temperature drops below a certain point, typically around 25°F (-4°C), and the heat pump can no longer efficiently provide heat. The auxiliary heat source ensures continuous heating, even if the primary heat pump is not functioning at optimal levels.
In a heat pump system, auxiliary heat is typically used in the following scenarios:
- During extremely cold weather when the heat pump's capacity is reduced
- When the heat pump is in defrost mode
- During periods of high heating demand
It's essential to note that relying heavily on auxiliary heat can increase energy consumption and, subsequently, energy bills. However, it provides a necessary backup to ensure a consistent and comfortable indoor temperature.
If you're looking to optimize your heating system, consider consulting with a professional to assess your specific needs and provide recommendations on the most efficient and cost-effective solutions.