AOUH18LUAS1
AOUH18LUAS1 is in the certified data.
Its certified full-speed heating output at 5°F is 16,800–17,100 Btu/h4.92–5.01 kW, 93–95% of its 47°F rating (tests at different compressor speeds), depending on the pairing.
Fujitsu · mini-split heat pump
AOUH18LUAS1 is in the certified data as of Sep 19, 2026. AOUH18LUAS1 changed its certified heat output at 47°F on 4 pairings from 21,600 Btu/h to 18,000 Btu/h in the certified data between March 2025 and May 2025.
- 18,000 Btu (1.5-ton)
- Mini-split
- Variable speed
- US and Canada
Certified heating and cooling
Heating at 47°F
18,0005.28NR
No 47°F rating for this pairing.
15,1004.43NR at 17°F
16,8004.92NR at 5°F
Btu/hkW, certified
2.24NR COP at 5°F
Heating and cooling by outdoor temperature
This pairing delivers 18,000 Btu/h5.28 kW of heat at 47°F, 15,100 Btu/h4.43 kW at 17°F, and 16,800 Btu/h4.92 kW at 5°F, 93% of its 47°F rating. It delivers 18,000 Btu/h5.28 kW of cooling at 95°F. At 5°F that is 2,800 Btu/h0.82 kW above the example heating load of 14,000 Btu/h4.10 kW; at 95°F it is 11,000 Btu/h3.22 kW above the example cooling load of 7,000 Btu/h2.05 kW.
Each bar is a separate certified test, drawn at its outdoor temperature, starting at zero. The 47°F figure is at normal speed; the 17 and 5°F figures are at full speed. The short dark line on each bar is the median of 1.5-ton mini-split models, one value per model. The shaded 17 to 45°F band is the frosting range: the outdoor coil can frost, and the unit pauses to defrost.
The dashed lines are example loads for a typical area of about 600 sq ft where winters reach 5°F: heating runs from 14,000 Btu/h4.10 kW at 5°F to 0 at 65°F, and cooling runs from 0 at 65°F to 7,000 Btu/h2.05 kW at 95°F, at 1,000 sq ft per ton. A house in a hot climate or with large west-facing windows can need twice as much cooling. They are examples, not your building.
AHRI certificate 211078844 · listed by Fujitsu · certified Jun 5, 2026 · 1 pairing carries these values
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Threshold comparisons use the unit’s certified figures across its pairings. Programs also set service-area, installation, and product-list requirements.
Certified output and power use
| Outdoor temperature | Certified outputBtu/h | One scale | vs class median | COPat 5°F |
|---|---|---|---|---|
| 5°Ffull speed | 16,8004.92 kW | +18% | 2.24 | |
| 17°Ffull speed | 15,1004.43 kW | +2% | NR | |
| 47°Fnormal speed | 18,0005.28 kW | 0% | NR | |
| 95°Fcooling, full load | 18,0005.28 kW | — | NR |
EER2 13.0 in that test. SEER2 23.5 over the modeled cooling season.
Power use at each temperature
- Electrical input in the 5°F full-speed test
- 2.20kW
- Electrical input in the 95°F cooling test
- 1.38kW
- Seasonal average heating COP
- 3.28
These exclude backup resistance heat.
How it compares with other 18,000 Btu heat pumps
1.5-ton mini-split models
- This pairing at 5°F
- 16,800 Btu/h4.92 kWNR
- This unit at 5°F median across its pairings
- 16,800 Btu/h4.92 kW
- Median of 1.5-ton mini-split models at 5°F
- 14,200 Btu/h4.16 kW
- Models in this group
- 1,110
This unit is above 62% of them, at number 422 of 1,110 by heat at 5°F. The middle half of the group runs 13,000 to 18,000 Btu/h.
Closest models by heat at 5°F
- TWH18AD32AOGree and Tosot · 17,000 Btu/h
- 38MARBQ18AA3Bryant, Carrier + 3 more · 16,800 Btu/h
- ACIQ-18ZPL-HP230B1HVAC, ACiQ + 3 more · 16,800 Btu/h
- BZ33-HYP18OUT2-G2-PBreeze33 · 16,800 Btu/h
- CH-HPR18-230VOC&H and Cooper&Hunter · 16,800 Btu/h
- CHF18CD(O)ComfortStar · 16,800 Btu/h
Every 18,000 Btu (1.5-ton) unit, ranked by cooling efficiency, then heating efficiency
Certified values for AOUH18LUAS1
4 pairings · 4 AHRI certificates
This pairing is the one shown above. Under all pairings, a single figure means every pairing agrees and a range means the pairing decides.
| This pairing | All pairings | |
|---|---|---|
| Heating | ||
| Heat output at 47°F normal speed | 18,000 Btu/h5.28 kWNR | 18,000 Btu/h5.28 kW |
| Heat output at 17°F full speed | 15,100 Btu/h4.43 kWNR | 14,700–15,800 Btu/h4.31–4.63 kW |
| Heat output at 5°F full speed | 16,800 Btu/h4.92 kWNR | 16,800–17,100 Btu/h4.92–5.01 kW |
| Heat output below 5°F | NR | NR |
| Cold output 5°F output as a % of the 47°F rating | 93%NR | |
| COP at 5°F full speed | 2.24NR | 2.12–2.24 |
| HSPF2 Region IV | 11.2NR | 10.0–11.2 |
| Cooling | ||
| Cooling capacity at 95°F full-load test | 18,000 Btu/h5.28 kWNR | 17,100–18,000 Btu/h5.01–5.28 kW |
| EER2 at 95°F | 13.0NR | 11.7–13.0 |
| SEER2 cooling season | 23.5NR | 18.6–23.5 |
| Cooling at other temperatures | NR | NR |
| Equipment and listing | ||
| Refrigerant | R-410A | |
| Compressor | Variable speed | |
| Indoor unit | AUUH18LUAS | 4 indoor units |
| Furnace | No furnace | None |
| Cold-climate designation EPA's designation, as published | Yes | On every pairing |
| ENERGY STAR Most Efficient EPA's designation, as published | Yes | On every pairing |
| Where it is sold | US and Canada | US and Canada |
| Model string as certified | AOUH18LUAS1 | |
Pairings, by indoor-unit class
4 indoor units · 4 certified pairings
One row per indoor unit certified with this outdoor unit.
Ductless indoor · 4 indoor units
-
ABUH18LUAS (the pairing on screen) FUJITSU 16,800 Btu/h4.92 kWat 5°F, full speed
-
ACUH18LUAS1 (the pairing on screen) FUJITSU 17,100 Btu/h5.01 kWat 5°F, full speed
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ARUH18LUAS (the pairing on screen) FUJITSU 16,800 Btu/h4.92 kWat 5°F, full speed
-
AUUH18LUAS (the pairing on screen) FUJITSU 16,800 Btu/h4.92 kWat 5°F, full speed
| Indoor unit | Brand | At 5°FBtu/hkW · full speed | At 47°FBtu/hkW · normal speed | At 95°FBtu/hkW · cooling | Cold output% of 47°F rating | COP 5°Ffull speed | Cold climate | Pairings |
|---|---|---|---|---|---|---|---|---|
| ABUH18LUAS (the pairing on screen) | FUJITSU | 16,8004.92 | 18,0005.28 | 18,0005.28 | 93% | 2.22 | Yes | 1 |
| ACUH18LUAS1 (the pairing on screen) | FUJITSU | 17,1005.01 | 18,0005.28 | 17,1005.01 | 95% | 2.20 | Yes | 1 |
| ARUH18LUAS (the pairing on screen) | FUJITSU | 16,8004.92 | 18,0005.28 | 17,1005.01 | 93% | 2.12 | Yes | 1 |
| AUUH18LUAS (the pairing on screen) | FUJITSU | 16,8004.92 | 18,0005.28 | 18,0005.28 | 93% | 2.24 | Yes | 1 |
Sold as, and units with identical certified values
What affects the price
We don't have prices. These things drive the cost.
- The size of the unit, and the indoor equipment on the same certificate.
- Whether existing ductwork is reused, altered, or replaced.
- The electrical work: a circuit, a disconnect, and sometimes a panel change.
- Refrigerant line length and how the outdoor unit is mounted.
- Permits and inspection, which vary by municipality.
- Removing and disposing of the old equipment.
- Local labor rates and how busy the season is.
- Rebates and tax credits, which change and have deadlines.
Product history
- AOUH18LUAS1 changed its certified heat output at 47°F on 4 pairings from 21,600 Btu/h to 18,000 Btu/h in the certified data between March 2025 and May 2025.
- AOUH18LUAS1 was in the certified data by September 2024.
History and definitions
History
- First certified record
- Most recent certified record
- Measurements reported
- Jun 5, 2026
- Status
- In the certified data
Field definitions
- COP
- Heat delivered for each unit of electricity used. A COP of 2.5 gives 2.5 times the heat of an electric baseboard heater.
- HSPF2
- Heating efficiency over a typical season. Higher uses less electricity.
- SEER2
- Cooling efficiency over a typical season. Higher uses less electricity.
- EER2
- Cooling output divided by electrical input in the 95°F full-load test, in Btu/h per watt.
- Cold output
- Heat output at 5°F as a percentage of the 47°F rating.
- % of rating at 17°F
- Heat output at 17°F as a percentage of the 47°F rating.
NR not in the certified dataNC not cold-climate certifiedSP single pairing onlyVP varies by pairing; see the pairings tableWD withdrawn since the certified data was last read