Using Emergency Heat on a Heat Pump: Guidelines and Considerations
Heat pumps are efficient heating systems that have gained popularity due to their ability to provide both heating and cooling. However, they may struggle to maintain indoor temperatures under certain conditions, particularly when outdoor temperatures drop significantly. This article aims to provide guidelines for when and how to use emergency heat on a heat pump, ensuring comfort and cost-effectiveness in various weather conditions.
When to Use Emergency Heat on a Heat Pump
Emergency heat, often referred to as auxiliary heat, should be used on a heat pump under certain conditions, especially when outdoor temperatures drop significantly. The efficiency of a heat pump can decrease dramatically as temperatures fall below 30°F (-1°C) to 40°F (4°C). At these temperatures, the heat pump may not be able to extract sufficient heat from the outside air to maintain indoor comfort levels.
Additionally, when temperatures drop too low, heat pumps become less efficient. This is where auxiliary heat can help maintain comfort levels without overworking the heat pump. Emergency heat should be used as a supplement when the main heat pump is struggling to keep up with heating demands, particularly in extreme conditions where the outside temperature is generally below 20°F (-6°C).
System-Specific Guidelines
It is important to note that the exact temperature at which to switch to emergency heat can vary depending on the specific model and design of your heat pump. Always refer to the manufacturer's recommendations for your particular unit to determine the optimal temperature threshold.
When using emergency heat, the system becomes less efficient and more expensive to operate. However, it is designed to take over when the heat pump is struggling, ensuring that your home remains warm and comfortable.
Operating with Emergency Heat
In normal operation, the heat pump provides heat at approximately one-third the cost of straight electric heating. However, as temperatures drop, the heat pump becomes less efficient, producing less heat. Supplemental heat is then necessary to make up the difference. Supplemental heating is typically two degrees behind the heat pump, so you will need to set the thermostat two degrees higher to get the desired heat. Once temperatures warm up, you can lower the thermostat back to its desired setting.
Emergency Situations
Emergency heat should only be used in emergency situations, such as when the main heat pump is not functioning properly or during extremely cold weather where the heat pump is unable to keep up with heating demands. For example, in an ice storm, the heat pump may be covered with ice and become non-functional. In such cases, use emergency heat until the outside coils are clear, and if the heat pump stops working, use emergency heat andContact a service provider as soon as possible.
It is important not to delay in addressing issues with the heat pump. Delaying can result in higher electricity bills once the heating demand is met. If this happens, it is not the fault of the heat pump but rather the user's decision to delay seeking help.
Conclusion
Understanding when and how to use emergency heat on a heat pump can help ensure your home remains warm and comfortable, even in the coldest weather. By following these guidelines and using emergency heat as needed, you can maintain a comfortable indoor environment while also managing your energy costs effectively.