Side by side
The full list
| Brand | Product | Price |
|---|---|---|
| MRCOOL | 18,000 BTU multi-zone outdoor unit MRCOOL DIY 5th Gen | $1,508 |
| MRCOOL | 18,000 BTU multi-zone outdoor unit MRCOOL Olympus | — |
| MRCOOL | 27,000 BTU multi-zone outdoor unit MRCOOL DIY 5th Gen | $2,037 |
| MRCOOL | 27,000 BTU multi-zone outdoor unit MRCOOL Olympus | — |
| MRCOOL | 36,000 BTU multi-zone outdoor unit MRCOOL DIY 5th Gen | $2,467 |
| MRCOOL | 36,000 BTU multi-zone outdoor unit MRCOOL Olympus | — |
| MRCOOL | 48,000 BTU multi-zone outdoor unit MRCOOL DIY 5th Gen | $3,131 |
| MRCOOL | 48,000 BTU multi-zone outdoor unit MRCOOL Olympus | — |
| MRCOOL | 55,000 BTU multi-zone outdoor unit MRCOOL DIY 5th Gen | $3,695 |
| Pioneer | 18,000 BTU 2-zone multi-zone outdoor unit (YNL-24) Pioneer Quantum Ultra | $1,298 |
| Pioneer | 27,000 BTU 3-zone multi-zone outdoor unit (YNL-24) Pioneer Quantum Ultra | $1,678 |
| Pioneer | 35,000 BTU 4-zone multi-zone outdoor unit (YNL-24) Pioneer Quantum Ultra | $2,538 |
| Pioneer | 42,000 BTU 5-zone multi-zone outdoor unit (YNL-24) Pioneer Quantum Ultra | $3,138 |
| Pioneer | 55,000 BTU 6-zone multi-zone outdoor unit (YNL-24) Pioneer Quantum Ultra | $4,068 |
| Senville | 18,000 BTU multi-zone outdoor unit Senville AURA | $1,399.99 |
| Senville | 28,000 BTU multi-zone outdoor unit Senville AURA | $1,599.99 |
| Senville | 36,000 BTU multi-zone outdoor unit Senville AURA | $2,099.99 |
| Senville | 48,000 BTU multi-zone outdoor unit Senville AURA | $2,899.99 |
No multi-zone outdoor units match those filters.
Multi-zone outdoor units questions
Which brands sell multi-zone outdoor units online?
3 brands, with the number of multi-zone outdoor units each sells: MRCOOL (9), Pioneer (5) and Senville (4).
What is the cheapest multi-zone outdoor unit?
The Pioneer Quantum Ultra 18,000 BTU 2-zone multi-zone outdoor unit (YNL-24) at $1,298 from Pioneer (checked Oct 14, 2026). Prices are re-checked weekly.
Which multi-zone outdoor unit has the highest seer2 (cooling efficiency)?
By the brands' published figures: MRCOOL Olympus 18,000 BTU multi-zone outdoor unit (25.1), MRCOOL Olympus 27,000 BTU multi-zone outdoor unit (25) and MRCOOL Olympus 36,000 BTU multi-zone outdoor unit (24). 9 of the 18 multi-zone outdoor units we list publish a seer2 (cooling efficiency).
Which multi-zone outdoor unit has the highest hspf2 (heating efficiency)?
By the brands' published figures: Senville AURA 48,000 BTU multi-zone outdoor unit (11), MRCOOL DIY 5th Gen 55,000 BTU multi-zone outdoor unit (10.6) and MRCOOL Olympus 48,000 BTU multi-zone outdoor unit (10.3). 10 of the 18 multi-zone outdoor units we list publish a hspf2 (heating efficiency).
Which multi-zone outdoor unit has the most heat at 5 °f?
By the brands' published figures: MRCOOL DIY 5th Gen 55,000 BTU multi-zone outdoor unit (46,000 BTU/h), MRCOOL DIY 5th Gen 48,000 BTU multi-zone outdoor unit (37,000 BTU/h) and Senville AURA 28,000 BTU multi-zone outdoor unit (27,000 BTU/h). 6 of the 18 multi-zone outdoor units we list publish a heating capacity at 5 °f.
Which multi-zone outdoor unit has the keeps heating in the coldest weather?
By the brands' published figures: Pioneer Quantum Ultra 55,000 BTU 6-zone multi-zone outdoor unit (YNL-24) (-13 °F), Pioneer Quantum Ultra 42,000 BTU 5-zone multi-zone outdoor unit (YNL-24) (-13 °F) and Pioneer Quantum Ultra 35,000 BTU 4-zone multi-zone outdoor unit (YNL-24) (-13 °F). 5 of the 18 multi-zone outdoor units we list publish a heats down to.
Which multi-zone outdoor unit has the longest compressor warranty?
By the brands' published figures: MRCOOL DIY 5th Gen 18,000 BTU multi-zone outdoor unit (7 years), MRCOOL DIY 5th Gen 27,000 BTU multi-zone outdoor unit (7 years) and MRCOOL DIY 5th Gen 36,000 BTU multi-zone outdoor unit (7 years). 14 of the 18 multi-zone outdoor units we list publish a compressor warranty.
Which multi-zone outdoor units publish a warranty if you install it yourself?
18 of the 18 multi-zone outdoor units we list have a published warranty if you install it yourself (Kept and Licensed installer required). What the brand's warranty says when the owner installs the unit: kept, reduced, or void without a licensed installer. The quote is on the product page.
Answered from the catalogue data, as of October 14, 2026. How we compare.
Legacy & discontinued 4 multi-zone outdoor units
From Pioneer Quantum multi-zone (R-410A) — a line no longer sold new. Kept apart from the comparison above because you cannot buy them off the shelf, but still listed for anyone matching an old box. Why these are separate →
| Brand | Product | Last price |
|---|---|---|
| Pioneer | 18,000 BTU 2-zone multi-zone outdoor unit (YN-M) Pioneer Quantum multi-zone (R-410A) | — |
| Pioneer | 27,000 BTU 3-zone multi-zone outdoor unit (YN-M) Pioneer Quantum multi-zone (R-410A) | — |
| Pioneer | 36,000 BTU 4-zone multi-zone outdoor unit (YN-M) Pioneer Quantum multi-zone (R-410A) | — |
| Pioneer | 48,000 BTU 5-zone multi-zone outdoor unit (YN-M) Pioneer Quantum multi-zone (R-410A) | — |