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jay_seifert

What exactly is the benefit of a 2-stage compressor over a 1-stage?

8 years ago
last modified: 8 years ago

What exactly is the benefit of a 2-stage compressor over a 1-stage?

Reason for inquiry is that I have 2 options that both claim similar SEER ratings of 17.5. One uses a 1-stage compressor (Lennox Signature SL18XC1) while the other uses a 2-stage compressor (Trane XR17). If it's simply efficiency, then whatever they are doing with the 1-stage must be amazing to get the same SEER rating.

Help in decision between Lennox Signature SL18XC1 vs. Trane XR17. Both are the same price for 2 systems full replacement including 5" filters, matching gas funance, etc.

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