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DIAMONDAIR heat pumps: how do their ratings compare?

A typical DIAMONDAIR heat pump beats 42% of similar heat pumps (same size and type), which is below average. DIAMONDAIR has 25 heat pump models in this list.

Covers older R-410A heat pumps, no longer installed new. See models sold today · Updated

Overall score

42%

of similar heat pumps beaten by its typical model

Below average

DIAMONDAIR has no QMID (the manufacturer ID the 25C tax credit needs) on file, so it is not ranked against other brands. Based on 22 models with every rating.

DIAMONDAIR, rating by ratingStrongest on hot-day cooling efficiency (beats 53%), weakest on efficiency on a 5°f day (beats 30%).
  • Efficiency on a 5°F dayCOP at 5°FBeats 30%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FBeats 34%
  • Winter-long heating efficiencyHSPF2Beats 42%
  • Summer-long cooling efficiencySEER2Beats 38%
  • Hot-day cooling efficiencyEER2Beats 53%

Average (50%)

Each bar: the share of similar heat pumps a typical model beats on that rating.

Want DIAMONDAIR’s ranks and its models inside every size class? Switch to Advanced

Rebate standards

Share of this brand’s models that meet the efficiency levels rebate programs use. Programs can have other rules too.

  • 36%

    meet CEE 2025 Tier 1, the level many utility rebates use.

    9 models. All brands: 48%.

    See them

  • 24%

    meet Xcel Energy Colorado’s cold-climate rebate levels.

    6 models. All brands: 38%.

    See them

  • 0%

    reach the cold-climate tier: full heating output and a COP of 2.1 or more at 5°F.

    None of its models yet. All brands: 1%.

Top DIAMONDAIR cold-climate picks, by size

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?

1 of DIAMONDAIR’s 2 models of this size and type qualify.

  1. 1DF18M2Z2DIAMONDAIR1.5 tons · 18,000 Btu/h · DuctedKeeps 70% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    70% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    9.8 (HSPF2)
    Good
    52.0score / 100

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

What to do next

The advanced view has DIAMONDAIR’s ranks on each rating, its models inside every size and type, cold-weather curves and its newest certifications.

Open the advanced view