Air Source Heat Pump EER

EER is a measure of the efficiency of the energy performance of a heat pump.

What is EER?

Let's start with the acronym EER. EER stands for Energy Efficiency Ratio. It is the energy efficiency ratio of air conditioners and heat pumps.

1. The Energy Efficiency Ratio (EER) is calculated based on an outdoor temperature of 35°C, an indoor temperature of 26°C, and a humidity factor of 50%. It is the cooling capacity produced in BTU/hour (BTU stands for British Thermal Unit) divided by the energy consumed in Watts/hour.

2. Technicians mainly use EERns to get real-time data on the performance of air conditioning equipment without having to consider temperature changes between seasons.

3. The higher the EER, the less energy the equipment consumes. For example, if the equipment has an EER of 4, it means that for every 1 kW of electrical energy consumed, the air conditioner outputs 4 kW of electrical energy.

4. Refrigeration equipment with a high EER is considered top-of-the-line equipment. Energy Star certified equipment should have an EER of 12.5 or higher.