The maker's photo for this series, not this exact size; the outdoor unit grows with capacity

Daikin · Single-Zone

Daikin Atmosphera 24,000 BTU

FTXM24WVJU9 / RXM24WVJU9

~$5,121approximate retailer price at last check, equipment only

BTU/h: 24k
Volts: 208/230
Zones: 1
SEER2: 22
HSPF2: 10
Heats to: -13°F
Refrig.: R-32
Covers: 1,100 ft²
Wi-Fi: Built in

Best forLarge rooms where the buyer is committed to Daikin and its dealer network.

Overview

At 24,000 BTU the Atmosphera is the largest single-zone Daikin wall pair sold with an R-32 charge, rated 22.0 SEER2 with heating to -13°F and a published 2-ton class capacity (21,600 BTU cooling, 24,000 BTU heating). The retailer price of about $5,120 is the highest of any 24k wall unit in this catalog: the Mitsubishi GX24 is $4,815, the Fujitsu Orion 24k $4,559 and the Fujitsu Altair 24k only $2,957. Wi-Fi is built in. Its certified HSPF2 is 10.0, and NEEP lists it holding its full 24,000 BTU of heat at 5°F. It makes sense if you want Daikin for the dealer support and the quiet 22 dB(A) marketing floor, but on the numbers it is the weakest value of the brand-name 24k options.

24k BTU, 5/8" suction line
Holds 24,000 BTU at 5°F (NEEP)

Cold-weather output

At 5°F it still makes its full 47°F rated heat, according to the certified NEEP listing for this pairing. Daikin rates it to keep running down to -13°F.

COP at 5°F: 1.8
Refrigerant: R-32
AHRI cert.: 212494260
ENERGY STAR cold climate: No

Pairing: RXM24WVJU with FTXM24WVJU. Checked October 8, 2026 on NEEP's ccASHP list; a different head or condenser posts different numbers.

Strengths and catches

Strengths

+Built-in Wi-Fi via the Daikin Comfort Control app
+Indoor head designed to pair with Daikin multi-zone equipment
+12-year parts term with registration

Catches

−About $5,100 for equipment alone, the most in its class
−10.0 HSPF2 trails the Fujitsu Orion 24k's 11.9
−1/4" x 5/8" lineset and a 20A circuit
−Rated only to -13°F, where the Mitsubishi GX24 runs to -22°F

Questions buyers ask

What area can the Daikin Atmosphera 24k handle?+

Daikin lists about 1,100 sq ft. NEEP certifies 24,000 BTU at 47°F. It suits a big open floor.

Does it keep heating capacity at 5°F?+

Yes, NEEP certifies 24,000 BTU at 5°F too, with a COP of 1.8, and Daikin rates it to -13°F. It does not lose output, but it does not gain either.

Is it worth about $5,121?+

It is the most expensive 24k wall unit in this catalog, with 22.0 SEER2 and 10.0 HSPF2. The Fujitsu Orion XLTH 24k is about $4,559 and rated 24 SEER2 and 11.9 HSPF2. Buy the Daikin for the brand and its 12-year parts term, not for efficiency.

What do I need for installation?+

A 1/4" x 5/8" lineset precharged to 49 ft, a breaker between 19.8A minimum and 20A maximum, and an installer trained on R-32, an A2L mildly flammable refrigerant.