Fujitsu General · Concealed Duct
ARUH12KUAS / AOUH12KUBS1
~$3,345approximate retailer price at last check, equipment only
Best forHomes with an attic or crawlspace and a duct run too long for a slim unit.
The ARUH12KUAS is Fujitsu's mid-static ducted unit and the one to choose when the duct run is more than a few feet. It handles up to 0.8 inWG of external static pressure, rates 19.1 SEER2, 12.7 EER2 and 10.5 HSPF2, and lists 13,600 BTU of cooling and 19,400 BTU of heating. The body is 11-13/16 inches wide, 27-9/16 deep and 27-9/16 tall, and weighs 66 lb, so it is far deeper than a slim duct and needs real space. Wi-Fi needs an optional Airstage accessory. At about $3,350 it is roughly $450 below Mitsubishi's PEAD-AA12NL system with a higher HSPF2 (10.5 against 8.7), though Mitsubishi's dealer network is wider.
At 5°F it still makes 97% of its rated heat, according to the certified NEEP listing for this pairing. Fujitsu General rates it to keep running down to -5°F.
Pairing: AOUH12KUBS1 with ARUH12KUAS. Checked October 8, 2026 on NEEP's ccASHP list; a different head or condenser posts different numbers.
The body is 27-9/16 inches tall, so it needs an attic, crawlspace or deep soffit. Ducting is sheet-metal work.
NEEP lists 16,000 BTU at 47°F and 15,500 BTU at 5°F, about 97%, with COP 2.02. HSPF2 is 10.5 and the maker's floor is -5°F.
The Fujitsu is $3,345 against $2,747 for the Mitsubishi SEZ-AD12NL, much taller, and keeps far more capacity at 5°F (15,500 BTU against 7,800). The Mitsubishi fits a shallow soffit.
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.
Series photoFujitsu General · Single-Zone
~$3,274
Cold-climate bedrooms and living rooms where you want a premium Japanese-brand unit for less than the Mitsubishi FX.
Series photoFujitsu General · Floor Mount
~$3,156
Basements, sunrooms and rooms without wall space where a console is the only fit.
Series photoFujitsu General · Ceiling Cassette
~$3,086
Grid-ceiling rooms and offices that want the best-rated 12k cassette.