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Oylus vs Rellytech: heat pump ratings compared

Against heat pumps of the same size and type, a typical Oylus model beats 33% and a typical Rellytech model 33%. They are level.

Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated

Oylus

33%

of similar heat pumps beaten by its typical model

Well below average

38 models listed

Rellytech

33%

of similar heat pumps beaten by its typical model

Well below average

38 models listed

Rating by ratingEach bar is the share of same-size, same-type heat pumps that a typical model beats, so the two brands compare fairly even if they make different sizes.
  • Efficiency on a 5°F dayCOP at 5°FOylus: Beats 36%Rellytech: Beats 36%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FOylus: Beats 31%Rellytech: Beats 31%
  • Winter-long heating efficiencyHSPF2Oylus: Beats 43%Rellytech: Beats 43%
  • Summer-long cooling efficiencySEER2Oylus: Beats 31%Rellytech: Beats 31%
  • Hot-day cooling efficiencyEER2Oylus: Beats 27%Rellytech: Beats 27%

Average (50%)Dashed outline: the other brand, for comparison

Want ranks, distributions per size class and cold-weather curves? Switch to Advanced

Rebate standards

Share of each brand’s models that meet the level. Programs can have other rules too.

  • CEE 2025

    Oylus
    63%
    Rellytech
    63%

  • Xcel CC

    Oylus
    50%
    Rellytech
    50%

  • CEE Advanced

    Oylus
    0%
    Rellytech
    0%

  • ENERGY STAR CC

    Oylus
    0%
    Rellytech
    0%

Top cold-climate picks, ducted up to 1.5 tons

Only units that keep at least 70% of their heat at 5°F, ranked on heat kept, efficiency at 5°F and seasonal efficiency (HSPF2), against units their size.

Showing Ducted, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

Oylus

No ducted, up to 1.5 tons model from Oylus.

Rellytech

No ducted, up to 1.5 tons model from Rellytech.

These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.

Next steps

The advanced view adds ranks, both brands’ models inside every size class, standout models per rating and cold-weather curves.

Open the advanced view