DAIZUKI vs THERMOCORE SYSTEMS heat pumps
Measured against models of the same size and duct type, THERMOCORE SYSTEMS scores higher on 6 of the 6 ratings. DAIZUKI has 12 outdoor models, THERMOCORE SYSTEMS has 17 outdoor models. DAIZUKI and THERMOCORE SYSTEMS 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.
- DAIZUKI
- THERMOCORE SYSTEMS
- Other ranked manufacturers
Source: AHRI Directory, NEEP · as of
| Rating | DAIZUKI | THERMOCORE SYSTEMS |
|---|---|---|
| Efficiency index | 47%median — | 61%median — |
| COP at 5°F | 39%median 1.93 | 61%median 2.00 |
| Capacity retention at 5°F | 41%median 71% | 55%median 81% |
| HSPF2 | 47%median 10.0 | 68%median 10.1 |
| SEER2 | 61%median 22.3 | 65%median 21.4 |
| EER2 | 44%median 11.7 | 57%median 12.5 |
| Heating capacity at 5°F | 45%median 16,900 Btu/h | 61%median 19,700 Btu/h |
| Outdoor models | 12 | 17 |
| AHRI certifications | 12 | 35 |
Share of models meeting each standard
| Standard | DAIZUKI | THERMOCORE SYSTEMS |
|---|---|---|
| CEE 2025 Tier 1 (Split ASHP) | 91.7%11 models | 100%17 models |
| CEE 2026 Tier 1 (Split ASHP) | 91.7%11 models | 94.1%16 models |
| CEE Advanced Tier (Split ASHP) | 0%0 models | 0%0 models |
| Xcel Energy Colorado cold-climate ASHP (2025) | 75%9 models | 70.6%12 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.
- DAIZUKI
- THERMOCORE SYSTEMS
- 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 | DAIZUKI | THERMOCORE SYSTEMS |
|---|---|---|
| Ducted, up to 1.5 tons | None | 1 · index 77% |
| Ducted, 2 tons | None | 1 · index 65% |
| Ducted, 2.5–3 tons | None | 3 · index 77% |
| Ducted, 3.5–4.5 tons | None | 2 · index 69% |
| Ducted, 5 tons and up | None | 1 · index 65% |
| Non-ducted, up to 1.5 tons | 6 · index 50% | 6 · index 64% |
| Non-ducted, 2 tons | 2 · index 49% | 2 · index 55% |
| Non-ducted, 2.5–3 tons | 3 · index 41% | 6 · index 58% |
| Non-ducted, 3.5–4.5 tons | 1 · index 43% | 3 · index 38% |
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 | DAIZUKICold-climate score, best model | THERMOCORE SYSTEMSCold-climate score, best model |
|---|---|---|
| Ducted, up to 1.5 tons | No models in this size class | 70.8(50 is the typical model of its size class)T7HH25D-H224-C1 of 1 models qualify · AHRI 218003246 |
| Ducted, 2 tons | No models in this size class | 48.6(50 is the typical model of its size class)T725D-H236-C1 of 1 models qualify · AHRI 218003240 |
| Ducted, 2.5–3 tons | No models in this size class | 82.5(50 is the typical model of its size class)T7HH25Q-H248-C3 of 3 models qualify · AHRI 218003252 |
| Ducted, 3.5–4.5 tons | No models in this size class | 81.2(50 is the typical model of its size class)T7HH22X-H272-C2 of 2 models qualify · AHRI 218003255 |
| Ducted, 5 tons and up | No models in this size class | None on this board (0 of 1 models qualify) |
| Non-ducted, up to 1.5 tons | 68.6(50 is the typical model of its size class)DXFMT-1824-2Z5 of 6 models qualify · AHRI 217500268 | 73.8(50 is the typical model of its size class) (higher)T7HH21S-H218-Cwith ductless indoor unit T7HH21S-H218-E3 of 6 models qualify · AHRI 218003230 |
| Non-ducted, 2 tons | 58.0(50 is the typical model of its size class)DXTH24C526A-25with ductless indoor unit DXTH24E526A-251 of 2 models qualify · AHRI 217996674 | 88.4(50 is the typical model of its size class) (higher)T7HH21S-H224-Cwith ductless indoor unit T7HH21S-H224-E2 of 2 models qualify · AHRI 218003231 |
| Non-ducted, 2.5–3 tons | 57.5(50 is the typical model of its size class)DXFMT-2724-3Z2 of 3 models qualify · AHRI 217500269 | 78.0(50 is the typical model of its size class) (higher)T7HH25Q-H248-C5 of 6 models qualify · AHRI 218003253 |
| Non-ducted, 3.5–4.5 tons | 32.0(50 is the typical model of its size class)DXFMT-4224-5Z1 of 1 models qualify · AHRI 217500271 | 66.0(50 is the typical model of its size class) (higher)T7HH22X-H272-C2 of 3 models qualify · AHRI 218003256 |
All-around best
| Size and duct type | DAIZUKIAll-around score, best model | THERMOCORE SYSTEMSAll-around score, best model |
|---|---|---|
| Ducted, up to 1.5 tons | No models in this size class | 77.4(50 is the typical model of its size class)T7HH25D-H224-C1 of 1 models have all five ratings · AHRI 218003246 |
| Ducted, 2 tons | No models in this size class | 64.5(50 is the typical model of its size class)T725D-H236-C1 of 1 models have all five ratings · AHRI 218003240 |
| Ducted, 2.5–3 tons | No models in this size class | 83.6(50 is the typical model of its size class)T7HH25Q-H248-C3 of 3 models have all five ratings · AHRI 218003252 |
| Ducted, 3.5–4.5 tons | No models in this size class | 82.0(50 is the typical model of its size class)T7HH22X-H272-C2 of 2 models have all five ratings · AHRI 218003255 |
| Ducted, 5 tons and up | No models in this size class | 65.3(50 is the typical model of its size class)T7C20S-H260-Cwith ducted air handler T7C20S-H260-EDT1 of 1 models have all five ratings · AHRI 218003237 |
| Non-ducted, up to 1.5 tons | 74.4(50 is the typical model of its size class)DXTH12C526A-25with ductless indoor unit DXTH12E526A-256 of 6 models have all five ratings · AHRI 217996672 | 81.9(50 is the typical model of its size class) (higher)T7HH25D-H224-C6 of 6 models have all five ratings · AHRI 218003245 |
| Non-ducted, 2 tons | 56.1(50 is the typical model of its size class)DXTH24C526A-25with ductless indoor unit DXTH24E526A-252 of 2 models have all five ratings · AHRI 217996674 | 76.4(50 is the typical model of its size class) (higher)T7HH21S-H224-Cwith ductless indoor unit T7HH21S-H224-E2 of 2 models have all five ratings · AHRI 218003231 |
| Non-ducted, 2.5–3 tons | 65.1(50 is the typical model of its size class)DXFMT-2724-3Z3 of 3 models have all five ratings · AHRI 217500269 | 78.3(50 is the typical model of its size class) (higher)T7HH25Q-H248-C6 of 6 models have all five ratings · AHRI 218003251 |
| Non-ducted, 3.5–4.5 tons | 42.9(50 is the typical model of its size class)DXFMT-4224-5Z1 of 1 models have all five ratings · AHRI 217500271 | 63.6(50 is the typical model of its size class) (higher)T7HH22X-H272-C3 of 3 models have all five ratings · AHRI 218003254 |
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 | DAIZUKI | THERMOCORE SYSTEMS |
|---|---|---|
| COP at 5°F | beats 88% · 2.25DXTH24C626A-21Non-ducted, 2 tons | beats 94% · 2.34T7HH21S-H224-CNon-ducted, 2 tons |
| Capacity retention at 5°F | beats 87% · 100%DXTH12C526A-25Non-ducted, up to 1.5 tons | beats 94% · 106%T7HH25Q-H248-CDucted, 2.5–3 tons |
| HSPF2 | beats 80% · 10.5DXFMT-2724-3ZNon-ducted, 2.5–3 tons | beats 98% · 13.5T7HH21S-H224-CNon-ducted, 2 tons |
| SEER2 | beats 91% · 24.0DXFMT-2724-3ZNon-ducted, 2.5–3 tons | beats 97% · 25.0T725D-H236-CNon-ducted, 2.5–3 tons |
| EER2 | beats 83% · 14.0DXTH12C526A-25Non-ducted, up to 1.5 tons | beats 91% · 15.0T7HH25D-H224-CNon-ducted, up to 1.5 tons |
| Heating capacity at 5°F | beats 90% · 17,800 Btu/hDXTH18C526A-25Non-ducted, up to 1.5 tons | beats 97% · 19,000 Btu/hT7HH25D-H224-CNon-ducted, up to 1.5 tons |