Daikin 2MXM18AVJU9 18,000 BTU 2-Zone (2 x FTXV09AVJU9) vs Mitsubishi MXZ-2D20NLHZ 20,000 BTU 2-Zone Hyper-Heat (2 x MSZ-FX09NL)
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Quick take: The Daikin 2MXM18AVJU9 18,000 BTU 2-Zone (2 x FTXV09AVJU9) costs $1,279 less; the Mitsubishi MXZ-2D20NLHZ 20,000 BTU 2-Zone Hyper-Heat (2 x MSZ-FX09NL) is genuine cold-climate hardware (rated to -22°F) while the Daikin 2MXM18AVJU9 is better kept to milder winters; the Daikin 2MXM18AVJU9 is the more efficient unit (21 SEER2); the Mitsubishi MXZ-2D20NLHZ moves more air (20k BTU).
| Spec | Daikin 2MXM18AVJU9 18,000 BTU 2-Zone (2 x FTXV09AVJU9) | Mitsubishi MXZ-2D20NLHZ 20,000 BTU 2-Zone Hyper-Heat (2 x MSZ-FX09NL) |
|---|---|---|
| Price | ~$4,239 | ~$5,518 |
| Type | Multi-Zone | Multi-Zone |
| Capacity | 18k BTU | 20k BTU |
| Coverage | ~800 sq ft | ~900 sq ft |
| SEER2 (cooling) | 21 | 19.3 |
| HSPF2 (heating) | 10 | 10 |
| Low-Ambient Heating | to 5°F | to -22°F |
| Max heat at 5°F (NEEP) | 13,200 BTU | 22,000 BTU |
| Heat kept at 5°F | 71% of rated | 100% of rated |
| Refrigerant | R-32 | R-454B |
| Zones | 2 zones | 2 zones |
| Voltage | 208/230V | 208/230V |
| WiFi Control | Built-in | Built-in |
| Install | Contractor install. The condenser is precharged for the stock line length, allows 164 ft total piping and a 49 ft height difference, and uses 1/4 x 3/8 in. lines. The retailer package price of $4,239 is the condenser plus two 9k heads and no line sets; 16, 25 and 50 ft line sets add $181 to $447. | Licensed-contractor install, and Mitsubishi's longer warranty terms assume one. The condenser supports two indoor units with up to 164 ft of total piping, 82 ft on a single run and a 49 ft height difference, and ships precharged with R-454B. Price here is the condenser plus two 9k MSZ-FX09NL heads; line sets, disconnect and labor are extra. |
| Warranty | 12-year limited parts warranty when registered online within 60 days of installation; parts only, so labor after the installer's own guarantee is extra. | 5-year parts / 7-year compressor standard; 10 years parts and compressor with online registration after a licensed-contractor install. |
Pros & cons
Daikin 2MXM18AVJU9 18,000 BTU 2-Zone (2 x FTXV09AVJU9)
- ✓12-year limited parts warranty with registration
- ✓21.0 SEER2 / 10.0 HSPF2 on non-ducted heads
- ✓Up to 164 ft of total piping and 49 ft of rise
- ✓Complete package priced from one retailer with a choice of 16, 25 or 50 ft line sets
- ✗Heating range starts at 5°F; the MXT version is needed for -13°F operation
- ✗Holds about 71% of 47°F capacity at 5°F
- ✗Line sets are extra and add up to $447 to the $4,239 package
Mitsubishi MXZ-2D20NLHZ 20,000 BTU 2-Zone Hyper-Heat (2 x MSZ-FX09NL)
- ✓NEEP lists 22,000 BTU/h at 5°F, matching its 47°F rating, with an Energy Star cold-climate listing
- ✓19,200 BTU/h still available at -13°F per the spec sheet
- ✓10-year parts and compressor term with registered contractor install
- ✓Takes a range of M-Series wall, floor and cassette heads, not just the FX wall unit
- ✓Precharged for 164 ft total piping, with 82 ft per run
- ✗About $5,500 for the condenser and two 9k heads, with line sets and labor still to add
- ✗Two separate FX09 single-zone systems cost about the same and do not share a compressor
- ✗Warranty past 5/7 years depends on a licensed install and registration