UHO42-NB-LD-Q
Mitsutomo · HP - Split System
ENERGY STAR CertifiedAir-Source Heat Pumps →
SEER2
16.7BTU/Wh
HSPF2
9.5BTU/Wh
Cooling Capacity
42000BTU/hr
Cold Climate
Yes
Cold climate certified
ENERGY STAR Most Efficient
Mitsutomo UHO42-NB-LD-Q: SEER2 16.7 BTU/Wh, around the middle of the range for air-source heat pumps (category median 20 BTU/Wh).
Where this model sits
Cooling42000BTU/hr
6000median 2400060000
SEER216.7BTU/Wh
15.2median 2035.1
The Mitsutomo UHO42-NB-LD-Q is a 42000 BTU/hr hp - split system using R-454B, a refrigerant with moderate global warming potential (GWP 470). At 16.7 BTU/Wh it ranks around the middle of the 12,218 certified air-source heat pumps models. Among similar-sized air-source heat pumps (within 10% of its size), it is about as efficient as the peer median of 16 BTU/Wh.
Specifications
| Efficiency | |
|---|---|
| SEER2 (best combination) | 16.7BTU/Wh |
| SEER2 (worst combination) | 16.7BTU/Wh |
| HSPF2 (best combination) | 9.5BTU/Wh |
| HSPF2 (worst combination) | 9.5BTU/Wh |
| EER2 (best combination) | 11.7BTU/Wh |
| COP at 5 °F | 1.90 |
| Capacity | |
| Cooling Capacity (max) | 42000BTU/hr |
| Cooling Capacity (min) | 42000BTU/hr |
| Heating at 47 °F | 50000BTU/hr |
| Heating at 17 °F | 37000BTU/hr |
| Heating at 5 °F | 46000BTU/hr |
All 25 specifications
| Configuration | |
|---|---|
| Product Type | HP - Split System |
| Compressor Staging | Continuously variable |
| Cold Climate Certified | Yes |
| Connected Capability | No |
| Series | UHO Series |
| Indoor-Unit Combinations Rated | 1 |
| Refrigerant | |
| Type | R-454B |
| GWP Rating | R-454B (GWP:470 | Lower GWP) |
| Identifiers | |
| Model Number | UHO42-NB-LD-Q |
| ENERGY STAR ID | ES_1152420_UHO42-NB-LD-Q_07212025233009_28217162463 |
| Partner | PerfitTech LLC |
| Date Certified | 2025-07-29 |
| Available From | 2024-05-20 |
| Markets | United States, Canada |
Documentation
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