A heat pump is a heating and cooling system that works effectively to heat homes.
It does not use fuel to generate heat, rather it transfers heat from the outside air into its compressor and converts hot or cool air using a refrigerant chemical.
The cooling system absorbs heat from the air, while the heating system releases heat into the air.
The cooling system is activated when the thermostat is turned down and the heating system is activated when the thermostat is turned to higher temperatures
With a purpose to maintain the temperature, the usual system has to cycle on and off repeatedly. This is very inefficient.
The Normal Cycle:
In a regular cycle, as soon as the refrigerant reaches the thermostat temperature, the cycle stops completely. When the room temperature changes, the system has to restart to bring the refrigerant temperature back to the right room temperature.
Every time the unit has to restart, the system has to eat energy.
The Inverter Cycle:
An Inverter Heat pump is a more environment friendly equipment that reduces the load and power requirements.
An inverter heat pump has a variable speed compressor or inverter. With a variable speed compressor the refrigerant cycle does not should start and stop.
Instead of starting and stopping, the refrigerant continuously cycles at different speeds.
While the heating cycle would use a higher flow rate, the cooling cycle requires a lesser refrigerant flow rate
The inverter cycle automatically adjusts the speed of the refrigerant flow relying on the, room temperature. This eliminates the necessity for wasted energy caused by stating and stopping.
Pros and Cons:
The variable cycles of the inverter heat pump removes cold drafts as it cycle continuously, adjusting its speed to match the room temperature. A regular heat pump would experience cold drafts while waiting for the system to restart when the room temperature changes.
Also some inverter heat pumps are manufactured with noise reduction that may help contribute to reducing malfunctions of the compressor and different system components
You will often pay more for the inverter heat pumps and there may be higher upkeep involved, resulting from their advanced working system.
However, the inverter heat pump is listed as an Energy Star equipment that qualifies for tax credits, relying on the model.
What to Look For
Consumers should look for a unit with a variable speed or multi-speed compressor.
In addition, consumers should be aware that the terms multi-speed and variable speed are also used to describe the blower speed.
The blower speed has benefits of its own which are unrelated to the compressor speed.
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