DAIZUKI vs Manuflow heat pumps
Measured against models of the same size and duct type, DAIZUKI and Manuflow split the 6 ratings 3–3. DAIZUKI has 12 outdoor models, Manuflow has 23 outdoor models. DAIZUKI and Manuflow 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
- Manuflow
- Other ranked manufacturers
Source: AHRI Directory, NEEP · as of
| Rating | DAIZUKI | Manuflow |
|---|---|---|
| Efficiency index | 47%median — | 47%median — |
| COP at 5°F | 39% (higher)median 1.93 | 37% (higher)median 1.80 |
| Capacity retention at 5°F | 41%median 71% | 42%median 73% |
| HSPF2 | 47%median 10.0 | 56%median 10.0 |
| SEER2 | 61% (higher)median 22.3 | 58% (higher)median 22.0 |
| EER2 | 44% (higher)median 11.7 | 38% (higher)median 11.2 |
| Heating capacity at 5°F | 45%median 16,900 Btu/h | 51%median 13,200 Btu/h |
| Outdoor models | 12 | 23 |
| AHRI certifications | 12 | 23 |
Share of models meeting each standard
| Standard | DAIZUKI | Manuflow |
|---|---|---|
| CEE 2025 Tier 1 (Split ASHP) | 91.7%11 models | 82.6%19 models |
| CEE 2026 Tier 1 (Split ASHP) | 91.7%11 models | 82.6%19 models |
| CEE Advanced Tier (Split ASHP) | 0%0 models | 0%0 models |
| Xcel Energy Colorado cold-climate ASHP (2025) | 75%9 models | 78.3%18 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
- Manuflow
- 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 | Manuflow |
|---|---|---|
| Ducted, up to 1.5 tons | None | 2 · index 50% |
| Ducted, 2 tons | None | 1 · index 56% |
| Non-ducted, up to 1.5 tons | 6 · index 50% | 12 · index 47% |
| Non-ducted, 2 tons | 2 · index 49% | 4 · index 44% |
| Non-ducted, 2.5–3 tons | 3 · index 41% | 3 · index 46% |
| Non-ducted, 3.5–4.5 tons | 1 · index 43% | 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 | DAIZUKICold-climate score, best model | ManuflowCold-climate score, best model |
|---|---|---|
| Ducted, up to 1.5 tons | No models in this size class | 54.1(50 is the typical model of its size class)TSDUC18HR2VIR45I*2 of 2 models qualify · AHRI 216763014 |
| Ducted, 2 tons | No models in this size class | 60.1(50 is the typical model of its size class)TSDUC24CD2VIR45I*1 of 1 models qualify · AHRI 216763015 |
| 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 | 68.6(50 is the typical model of its size class)TFM2G18CHAIR454B9 of 12 models qualify · AHRI 216763003 |
| 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 | 58.8(50 is the typical model of its size class) (higher)TSCAS24CD2VIR45I*with ductless indoor unit TSCAS24CD2VIR45I3 of 4 models qualify · AHRI 216763012 |
| 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 | 57.5(50 is the typical model of its size class)TFM3G27CHAIR454B2 of 3 models qualify · AHRI 216763004 |
| Non-ducted, 3.5–4.5 tons | 32.0(50 is the typical model of its size class) (higher)DXFMT-4224-5Z1 of 1 models qualify · AHRI 217500271 | 31.2(50 is the typical model of its size class)TFM5G42CHAIR454B1 of 1 models qualify · AHRI 216763006 |
All-around best
| Size and duct type | DAIZUKIAll-around score, best model | ManuflowAll-around score, best model |
|---|---|---|
| Ducted, up to 1.5 tons | No models in this size class | 57.0(50 is the typical model of its size class)TSDUC18HR2VIR45I*2 of 2 models have all five ratings · AHRI 216763014 |
| Ducted, 2 tons | No models in this size class | 55.8(50 is the typical model of its size class)TSDUC24CD2VIR45I*1 of 1 models have all five ratings · AHRI 216763015 |
| 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 | 74.4(50 is the typical model of its size class)THH12E2S25NAR454Owith ductless indoor unit THH12E2S25NAR454I12 of 12 models have all five ratings · AHRI 216707861 |
| 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 | 56.5(50 is the typical model of its size class) (higher)TSCAS24CD2VIR45I*with ductless indoor unit TSCAS24CD2VIR45I4 of 4 models have all five ratings · AHRI 216763012 |
| 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 | 65.1(50 is the typical model of its size class)TFM3G27CHAIR454B3 of 3 models have all five ratings · AHRI 216763004 |
| Non-ducted, 3.5–4.5 tons | 42.9(50 is the typical model of its size class) (higher)DXFMT-4224-5Z1 of 1 models have all five ratings · AHRI 217500271 | 42.4(50 is the typical model of its size class)TFM5G42CHAIR454B1 of 1 models have all five ratings · AHRI 216763006 |
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 | Manuflow |
|---|---|---|
| COP at 5°F | beats 88% · 2.25DXTH24C626A-21Non-ducted, 2 tons | beats 81% · 2.03TSHG36E2S19NAR45ONon-ducted, 2.5–3 tons |
| Capacity retention at 5°F | beats 87% · 100%DXTH12C526A-25Non-ducted, up to 1.5 tons | beats 87% · 100%THH12E2S25NAR454ONon-ducted, up to 1.5 tons |
| HSPF2 | beats 80% · 10.5DXFMT-2724-3ZNon-ducted, 2.5–3 tons | beats 81% · 10.4TSCAS24CD2VIR45I*Non-ducted, 2 tons |
| SEER2 | beats 91% · 24.0DXFMT-2724-3ZNon-ducted, 2.5–3 tons | beats 91% · 24.0TFM3G27CHAIR454BNon-ducted, 2.5–3 tons |
| EER2 | beats 83% · 14.0DXTH12C526A-25Non-ducted, up to 1.5 tons | beats 83% · 14.0THH12E2S25NAR454ONon-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 90% · 17,800 Btu/hTHH18E2S24NAR454ONon-ducted, up to 1.5 tons |