What is An Inverter Heat Pump?

Inverter heat pumps use variable speed compressors to adjust their output to increase or decrease their speed to precisely match a building's heat needs as the outdoor air temperature changes.

Advantages and disadvantages of inverter air conditioners:

Here's a review of what we covered and more pros and cons of variable frequency drive compressors.
Advantage:
Higher Efficiency: Converter-driven AC and heat pumps are two to three times more efficient than single- and two-stage standard split system models.
Comparable to geothermal: With each generation increasing in efficiency, inverter-driven systems are comparable to geothermal heat pumps in reducing energy consumption.
Value: Inverter split systems, especially small split heat pumps, are more valuable than most geothermal systems due to their much lower cost.
Indoor Temperature and Humidity Control: Inverter-driven heating and cooling provides temperature balance superior to other types. When cooling, longer, more consistent cycles remove more moisture from warmer weather. This means you'll be comfortable in higher temperatures, further saving energy.
System Options: Inverter technology is available in mini-split and standard split, so you can choose size and installation.
Shortcoming:
Standard split system cost: Standard split air conditioners and heat pumps with inverter-controlled compressors cost 25% to 55% more than comparably sized single- and two-stage systems.
Cost of Multi-Zone Small Split System: Multi-zone systems require 2 to 8 indoor units, each zone is billed separately. Costs can be 100% higher than single- or two-stage split systems.
Communication technology: Some installers extend communication technology to standard split systems with inverter technology. Currently, we do not recommend this technique.