Multi-Zone Mini-Split Systems

One outdoor condenser feeding two to five indoor heads — the clean-looking answer when yard space, an HOA, or aesthetics rule out a condenser per room. The engineering tradeoffs the sales quote skips: the big compressor can rarely modulate low enough when just one bedroom head calls, so multis short-cycle and dehumidify worse than singles; efficiency ratings drop versus the same brand's single-zone units; and the whole house shares one point of failure. The standing HVAC advice is 'two singles beat one multi' — the multis earn their place when the constraint is physical space, and the premium brands (Mitsubishi MXZ, Daikin, Fujitsu) handle low-load modulation far better than the budget ones.

The catalog has 20 multi-zone systems from 8 brands, priced from ~$1,339 to ~$7,961. 8 are rated to keep heating down to -22°F, the least expensive being the Senville AURA 18,000 BTU 2-Zone (9k+9k). The cheapest way in is the Cooper & Hunter Olivia 18,000 BTU 2-Zone (9k+9k) at ~$1,339.

Senville AURA 18,000 BTU 2-Zone (9k+9k)

Senville · Multi-Zone

~$2,100

Senville AURA 18,000 BTU 2-Zone (9k+9k)

Budget-minded two-room installs where one condenser location has to serve both zones.

BTU/h
18k
Volts
230
Zones
2
SEER2
25
HSPF2
10.4
Heats to
-22°F
Senville AURA 27,000 BTU 3-Zone (9k+9k+9k)

Senville · Multi-Zone

~$2,700

Senville AURA 27,000 BTU 3-Zone (9k+9k+9k)

Whole-small-home or three-bedroom coverage on a tight budget with only one viable condenser spot.

BTU/h
27k
Volts
230
Zones
3
SEER2
23
HSPF2
10.5
Heats to
-22°F
Senville AURA 36,000 BTU 4-Zone (9k x4)

Senville · Multi-Zone

~$3,180

Senville AURA 36,000 BTU 4-Zone (9k x4)

A four-room home in a cold climate that wants the lowest price and can wait on stock.

BTU/h
36k
Volts
230
Zones
4
SEER2
23
HSPF2
10.7
Heats to
-22°F
Gree Multi21+ R-32 18,000 BTU 2-ZoneSeries photo

Gree · Multi-Zone

~$3,580

Gree Multi21+ R-32 18,000 BTU 2-Zone

Two rooms in a cold climate, installed by a pro, where one condenser on the wall beats two.

BTU/h
18k
Volts
230
Zones
2
SEER2
21
HSPF2
10
Heats to
-22°F
Mitsubishi MXZ 3-Zone 24,000 BTU Hyper-Heat (H2i)

Mitsubishi Electric · Multi-Zone

~$4,481

Mitsubishi MXZ 3-Zone 24,000 BTU Hyper-Heat (H2i)

Cold-climate homes that need three rooms conditioned off one outdoor unit and want the most proven hyper-heat multi on the market.

BTU/h
24k
Volts
230
Zones
3
SEER2
20
HSPF2
10
Heats to
-22°F
ACiQ Standard 27,000 BTU 2-Zone (18k + 18k)

ACiQ · Multi-Zone

~$3,350

ACiQ Standard 27,000 BTU 2-Zone (18k + 18k)

Two large rooms where each needs an 18k head and the buyer wants a long registered compressor warranty at a low price.

BTU/h
27k
Volts
230
Zones
2
SEER2
25
HSPF2
9.5
Heats to
-13°F
Daikin 3MXM 3-Zone 24,000 BTU (9k+9k+15k)

Daikin · Multi-Zone

~$6,062

Daikin 3MXM 3-Zone 24,000 BTU (9k+9k+15k)

Moderate-climate homes wanting a premium-brand 3-room system with the longest warranty in the class.

BTU/h
24k
Volts
230
Zones
3
SEER2
21
HSPF2
10
Heats to
5°F
Fujitsu AOU24RLXFZ 24,000 BTU 2-3 Zone MultiDiscontinued

Fujitsu General · Multi-Zone

~$2,582

Fujitsu AOU24RLXFZ 24,000 BTU 2-3 Zone Multi

Two- or three-room retrofits in moderate climates where an installer-supported Fujitsu quote comes in below the Mitsubishi equivalent.

BTU/h
24k
Volts
230
Zones
3
SEER2
18
HSPF2
9.5
Heats to
5°F