SpecDirectory

CSU18HEI2NAM0T24

Clima Smart · HP - Mini or Multi Split

ENERGY STAR CertifiedAir-Source Heat Pumps →
SEER2

23.5BTU/Wh

HSPF2

10BTU/Wh

Cooling Capacity

18000BTU/hr

Cold Climate

Yes

Cold climate certified
High SEER2ENERGY STAR Most Efficient

Clima Smart CSU18HEI2NAM0T24: SEER2 23.5 BTU/Wh, better than 81% of air-source heat pumps (category median 20 BTU/Wh).

SEER2: better than 78% of the 1837 comparable models within 10% of this capacity. Their median is 21 BTU/Wh.

Where this model sits

Cooling18000BTU/hr
6000median 2400060000
SEER223.5BTU/Wh
15.2median 2035.1

Better than 81% of air-source heat pumps.

The Clima Smart CSU18HEI2NAM0T24 is a 18000 BTU/hr hp - mini or multi split using R-454B, a refrigerant with moderate global warming potential (GWP 470). At 23.5 BTU/Wh it ranks better than 82% of the 12,218 certified air-source heat pumps models. Among similar-sized air-source heat pumps (within 10% of its size), it is more efficient than the peer median of 21 BTU/Wh. In this size range, comparable Midea models average 21.4 BTU/Wh and TOSOT models average 21 BTU/Wh.

Specifications

Efficiency
SEER2 (best combination)23.5BTU/Wh
SEER2 (worst combination)23.5BTU/Wh
HSPF2 (best combination)10BTU/Wh
HSPF2 (worst combination)10BTU/Wh
EER2 (best combination)12.5BTU/Wh
COP at 5 °F1.80
Capacity
Cooling Capacity (max)18000BTU/hr
Cooling Capacity (min)18000BTU/hr
Heating at 47 °F18000BTU/hr
Heating at 17 °F15500BTU/hr
Heating at 5 °F17800BTU/hr
All 25 specifications
Configuration
Product TypeHP - Mini or Multi Split
Compressor StagingContinuously variable
Cold Climate CertifiedYes
Connected CapabilityNo
SeriesClima Smart single zone
Indoor-Unit Combinations Rated1
Refrigerant
TypeR-454B
GWP RatingR-454B (GWP:470 | Lower GWP)
Identifiers
Model NumberCSU18HEI2NAM0T24
ENERGY STAR IDES_1149078_CSU18HEI2NAM0T24_01032026210000_29218043760
PartnerMuller air conditioners Inc
Date Certified2026-01-14
Available From2026-01-30
MarketsCanada

Documentation

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