CARRIER CORPORATION vs RAMSOND heat pumps
Measured against models of the same size and duct type, RAMSOND scores higher on 5 of the 6 ratings. CARRIER CORPORATION has 8 outdoor models, RAMSOND has 8 outdoor models. CARRIER CORPORATION and RAMSOND have no QMID on file and are not ranked.
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CompareData as of updated · sources
Against comparable models
Each cell is the share of same-size, same-type models that the manufacturer’s typical model beats (50% is typical); the higher score is in bold. Raw medians are underneath for context: they depend on which sizes each one makes, so they are not compared.
- CARRIER CORPORATION
- RAMSOND
- Other ranked manufacturers
Source: AHRI Directory, NEEP · as of
| Rating | CARRIER CORPORATION | RAMSOND |
|---|---|---|
| Efficiency index | 19%median — | 46%median — |
| COP at 5°F | 3%median 1.47 | 41%median 2.00 |
| Capacity retention at 5°F | 3%median 34% | 38%median 72% |
| HSPF2 | 10%median 6.7 | 55%median 9.8 |
| SEER2 | 9%median 13.4 | 58%median 21.5 |
| EER2 | 58% (higher)median 11.5 | 37% (higher)median 11.2 |
| Heating capacity at 5°F | 5%median 14,450 Btu/h | 43%median 16,200 Btu/h |
| Outdoor models | 8 | 8 |
| AHRI certifications | 8 | 8 |
Share of models meeting each standard
| Standard | CARRIER CORPORATION | RAMSOND |
|---|---|---|
| CEE 2025 Tier 1 (Split ASHP) | 0%0 models | 100%8 models |
| CEE 2026 Tier 1 (Split ASHP) | 0%0 models | 100%8 models |
| CEE Advanced Tier (Split ASHP) | 0%0 models | 0%0 models |
| Xcel Energy Colorado cold-climate ASHP (2025) | 0%0 models | 75%6 models |
| DOE Cold Climate Heat Pump Challenge | 0%0 models | 0%0 models |
| ENERGY STAR Cold Climate | 0%0 models | 0%0 models |
Sizes and duct types offered
Models in each peer group, with the efficiency index of those models against the rest of the group.
- CARRIER CORPORATION
- RAMSOND
- All models of the group
Raw ratings are only placed side by side within one size and duct type, where they are comparable.
Source: AHRI Directory · as of
| Size and duct type | CARRIER CORPORATION | RAMSOND |
|---|---|---|
| Ducted, 2.5–3 tons | 4 · index 17% | None |
| Ducted, 5 tons and up | 4 · index 21% | None |
| Non-ducted, up to 1.5 tons | None | 4 · index 42% |
| Non-ducted, 2 tons | None | 1 · index 40% |
| Non-ducted, 2.5–3 tons | None | 2 · index 58% |
| Non-ducted, 3.5–4.5 tons | None | 1 · index 42% |
Cold-climate and all-around picks, size class by size class
Each manufacturer’s best model on each board in every size and duct type, side by side; the higher score is in bold. Both scores are 0–100 against every model of that size class (the line on each bar is 50, the typical model there), so the two compare fairly even when they make different sizes.
Cold-climate picks
| Size and duct type | CARRIER CORPORATIONCold-climate score, best model | RAMSONDCold-climate score, best model |
|---|---|---|
| Ducted, 2.5–3 tons | None on this board (0 of 4 models qualify) | No models in this size class |
| Ducted, 5 tons and up | None on this board (0 of 4 models qualify) | No models in this size class |
| Non-ducted, up to 1.5 tons | No models in this size class | 68.6(50 is the typical model of its size class)RDZ-18MHP-230V-O3 of 4 models qualify · AHRI 217563453 |
| Non-ducted, 2 tons | No models in this size class | None on this board (0 of 1 models qualify) |
| Non-ducted, 2.5–3 tons | No models in this size class | 57.5(50 is the typical model of its size class)RDZ-28MHP-230V-O2 of 2 models qualify · AHRI 217563454 |
| Non-ducted, 3.5–4.5 tons | No models in this size class | 31.2(50 is the typical model of its size class)RDZ-45MHP-230V-O1 of 1 models qualify · AHRI 217563456 |
All-around best
| Size and duct type | CARRIER CORPORATIONAll-around score, best model | RAMSONDAll-around score, best model |
|---|---|---|
| Ducted, 2.5–3 tons | 17.3(50 is the typical model of its size class)50FEQ*04***3******1 of 4 models have all five ratings · AHRI 216574944 | No models in this size class |
| Ducted, 5 tons and up | 21.3(50 is the typical model of its size class)50FEQ*06***3******1 of 4 models have all five ratings · AHRI 216574945 | No models in this size class |
| Non-ducted, up to 1.5 tons | No models in this size class | 72.2(50 is the typical model of its size class)RDZ-18MHP-230V-O4 of 4 models have all five ratings · AHRI 217563453 |
| Non-ducted, 2 tons | No models in this size class | 40.4(50 is the typical model of its size class)GW-24HP-230VOwith ductless indoor unit GW-24HP-230VI1 of 1 models have all five ratings · AHRI 218352809 |
| Non-ducted, 2.5–3 tons | No models in this size class | 65.1(50 is the typical model of its size class)RDZ-28MHP-230V-O2 of 2 models have all five ratings · AHRI 217563454 |
| Non-ducted, 3.5–4.5 tons | No models in this size class | 42.4(50 is the typical model of its size class)RDZ-45MHP-230V-O1 of 1 models have all five ratings · AHRI 217563456 |
Standout model on each rating
Each manufacturer’s model that beats the largest share of comparable models on the rating; the higher share is in bold.
| Rating | CARRIER CORPORATION | RAMSOND |
|---|---|---|
| COP at 5°F | beats 5% · 1.6050FEQ*04***3******Ducted, 2.5–3 tons | beats 71% · 2.10GW-24HP-230VONon-ducted, 2 tons |
| Capacity retention at 5°F | beats 5% · 39%50FEQ*04***3******Ducted, 2.5–3 tons | beats 61% · 80%RDZ-18MHP-230V-ONon-ducted, up to 1.5 tons |
| HSPF2 | beats 10% · 6.750FEQ*06***1******Also listed as 50FEQ*06***5, 50FEQ*06***6Ducted, 5 tons and up | beats 80% · 10.5RDZ-28MHP-230V-ONon-ducted, 2.5–3 tons |
| SEER2 | beats 9% · 13.450FEQ*06***1******Also listed as 50FEQ*06***5, 50FEQ*06***6Ducted, 5 tons and up | beats 91% · 24.0RDZ-28MHP-230V-ONon-ducted, 2.5–3 tons |
| EER2 | beats 60% · 11.550FEQ*06***1******Also listed as 50FEQ*06***5, 50FEQ*06***6Ducted, 5 tons and up | beats 70% · 13.0RDZ-18MHP-230V-ONon-ducted, up to 1.5 tons |
| Heating capacity at 5°F | beats 8% · 13,400 Btu/h50FEQ*04***3******Ducted, 2.5–3 tons | beats 88% · 16,000 Btu/hRDZ-18MHP-230V-ONon-ducted, up to 1.5 tons |