Invest in a Two-Stage Compressor & Save

When you're in the market for a new HVAC system, you should seriously consider investing in a product that features a two-stage compressor. Compared to a conventional single-stage compressor, a high performance two-stage compressor can save you money and headache over the long term.

The Compressor Is The Heart of the Condenser

First, what is a compressor? A compressor is a key part when it comes to moving the heat around an environment. The compressor increases the pressure of the refrigerant passing through it, so that refrigerant can then release its heat through the condenser coil. It's kind of like a heart pumping blood. If the blood were a refrigerant gas and the oxygen was heat.

In any case, a good compressor is key to getting the best performance from any air conditioning technology.

Why a Two-Stage Compressor?

A two-stage compressor is both more durable and more efficient than a regular compressor. To make a long story short, a two-stage compressor can run the HVAC system at reduced capacity to handle most system heating and cooling needs. This is great for spring and fall when you need a little bit of heating or cooling, but not a lot of both.

When it gets really hot (or cold), a heat pump with a two-stage compressor can ramp up performance to meet demand. As that demand falls off, it can flip back into single-stage mode to steadily maintain comfort and efficiency.

Why Does A Two-Stage Compressor Matter?

A single-stage compressor can only run one way to meet any heating or cooling demand. It has to run full speed no matter if its cooling your home by a single degree or a dozen. During certain seasons this can translate into a lot of rapid, start-stop operation. Start-stop operation is very tough on your compressor.

By contrast, a two-stage compressor has less friction-inducing start-stop operation, since it can run its reduced-capacity stage instead of going full speed all the time. This also saves money and cuts down on wear and tear. Plus, you don't have to sacrifice any comfort, since the two-stage compressor can always run both stages to meet high demand.

A Two-Stage Compressor Is Good For Humidity Too

As an added side benefit, two-stage compressors can reduce interior humidity even better than a single-stage unit. Couple them with a variable-speed air handling unit for maximum benefit.

Bottom Line

When you’re in the market for a new system, it’s worth your long term dollar to get one with two-stage compressor technology. If you have questions about these or other HVAC products, let us know in the comments below, on Facebook, or on Twitter.

5 comments (view/add)
  • Kurt
    Kurt
    Posted on 6/7/2019

    Simple and very easy to understand!
    Thanks!

  • Paul J
    Paul J
    Posted on 6/15/2019

    Should the air temperature in the plenum remain constant regardless of the outside temperature. If so, what is the ideal temperature for a properly operating unit?
    Thank You.

  • Kyle
    Kyle from Ingrams
    Posted on 6/17/2019

    The discharge air temperature for a properly operating AC system would be 20F below incoming air temperature.

  • Stephen n bertrand
    Stephen n bertrand
    Posted on 6/15/2019

    I thought the units labled inverters used logic that altered compressor speed to meet the loads

  • Kyle
    Kyle from Ingrams
    Posted on 6/17/2019

    Inverter compressors can alter compressor speed to meet varying load demand. However, many systems do not use inverter compressors. Two-stage compressors are much more common.


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