Series photoFujitsu General · Ceiling Cassette
~$4,286
Fujitsu ACUH18KUAS Compact Cassette 18,000 BTU
Open rooms around 750 sq ft that want a single flush ceiling unit.
- BTU/h
- 18k
- Volts
- 208/230
- Refrig.
- R-32
- SEER2
- 21.9
- HSPF2
- 11.3
- Heats to
- -5°F
Fujitsu GeneralAUUH24KUAS / AOUH24KUAS1
Fujitsu General · Ceiling Cassette
Fujitsu AUUH24KUAS Large Circular Cassette 24,000 BTU
AUUH24KUAS / AOUH24KUAS1
~$6,295approximate retailer price at last check, equipment only
- BTU/h
- 24k
- Volts
- 208/230
- Zones
- 1
- SEER2
- 23.2
- HSPF2
- 11
- Heats to
- -5°F
- Refrig.
- R-32
- Covers
- 1,000 ft²
- Wi-Fi
- Add-on
Best forLarge open rooms or light-commercial spaces around 1,000 sq ft.
Overview
This is Fujitsu's large circular-flow cassette, the largest cassette in this catalog at 24,000 BTU, for roughly 1,000 sq ft of open floor such as a shop, church hall, restaurant or large living room. It rates 23.2 SEER2, 13.1 EER2 and 11 HSPF2 (8.5 in region V), and the system price of about $6,300 includes the UTG-LCGVCW white grille (black is also offered). The indoor unit is 33-1/16 inches square and 9-11/16 inches tall, and the lineset can run up to 164 ft. It is more of a light-commercial product than a home one: for a house, two 12k cassettes or heads usually cost less and give each room its own control.
- 24,000 BTU single zone
- 164 ft lineset max
- Circular airflow for open spaces
Cold-weather output
At 5°F it still makes 87% of its rated heat, according to the certified NEEP listing for this pairing. Fujitsu General rates it to keep running down to -5°F.
- COP at 5°F
- 2.12
- Refrigerant
- R-32
- AHRI cert.
- 215434553
- ENERGY STAR cold climate
- Yes
Pairing: AOUH24KUAS1 with AUUH24KUAS. Checked October 8, 2026 on NEEP's ccASHP list; a different head or condenser posts different numbers.
Strengths and catches
Strengths
- +23.2 SEER2 at 2 tons
- +Long 164 ft lineset allowance
- +Circular airflow for open spaces
- +Grille included
Catches
- −About $6,300 before install, the most expensive single-zone unit in this catalog
- −33 inch square body needs a large ceiling opening
- −Wi-Fi is an optional accessory
- −Two smaller units often serve a house better
Questions buyers ask
What ceiling opening does the large circular cassette need?+
The 33-1/16 inch square body needs a 33-inch-class opening, so it is a framing job. It suits a large open room, shop or restaurant space.
How does it hold heat at 5°F?+
NEEP lists 27,000 BTU at 47°F and 23,600 BTU at 5°F, about 87%, with COP 2.12. HSPF2 is 11 and the maker's floor is -5°F.
Is it priced reasonably?+
At $6,295 it is the most expensive single-zone unit in this catalog. It is for a single large space with 24,000 BTU that a smaller cassette cannot cover.
Who has to install it to get the long warranty?+
A licensed contractor. Fujitsu's base term is 5 years on parts and 7 on the compressor. A licensed-contractor install registered online within 60 days raises it to 10 years on both, and a Fujitsu Elite contractor install to 12, so a self-install gives up the longer coverage. The lineset is 1/4 x 1/2 inch and can run up to 164 ft.
Similar systems
Everything from Fujitsu GeneralSeries photo
Series photoFujitsu General · Ceiling Cassette
~$3,086
Fujitsu ACUH12KUAS Compact Cassette 12,000 BTU
Grid-ceiling rooms and offices that want the best-rated 12k cassette.
- BTU/h
- 12k
- Volts
- 208/230
- Refrig.
- R-32
- SEER2
- 23.7
- HSPF2
- 11.5
- Heats to
- -5°F
Fujitsu General · Multi-Zone
~$7,300
Fujitsu AOUH36KWAS4 36,000 BTU 4-Zone (4 x ASUH09KPAS)
A four-room house in a moderate-to-cold climate that may mix wall and ducted heads.
- BTU/h
- 36k
- Volts
- 208/230
- Zones
- 4
- SEER2
- 22
- HSPF2
- 10
- Heats to
- 5°F