MiniSplit Facts

Gree Vireo vs Pioneer Quantum Ultra

Different factories: Gree certifies its own units with ENERGY STAR; Pioneer Quantum Ultra's certified ratings match models TCL certifies under its own name. Gree Vireo has 18 products on sale across 1 category, priced $2,103 to $3,900. Pioneer Quantum Ultra has 46 products on sale across 3 categories, priced $398 to $5,068. Largest system: 24,000 BTU/h (Gree Vireo 24,000 BTU ceiling cassette system) against 48,000 BTU/h (Pioneer Quantum Ultra 48,000 BTU concealed duct system (RYB-20)). Highest SEER2 (cooling efficiency): 26 (Gree Vireo 24,000 BTU ceiling cassette system) against 24.6 (Pioneer Quantum Ultra 12,000 BTU floor console system (FYB-24)). Highest HSPF2 (heating efficiency): 10.4 (Gree Vireo 9,000 BTU wall mount system) against 13.5 (Pioneer Quantum Ultra 18,000 BTU floor console system (FYB-24)). Most heat at 5 °F: 19,000 BTU/h (Gree Vireo 24,000 BTU wall mount system) against 40,500 BTU/h (Pioneer Quantum Ultra 48,000 BTU ceiling cassette system (CYB-20)). Longest compressor warranty: 7 years (Gree Vireo 12,000 BTU ceiling cassette system) against 5 years (Pioneer Quantum Ultra 55,000 BTU 6-zone multi-zone outdoor unit (YNL-24)).

At a glance

Fact Gree Vireo Pioneer Quantum Ultra
Launched 2024 2025
Products on sale1846
CategoriesSingle-zone systems (18)Single-zone systems (27), Multi-zone outdoor units (5), Indoor units (14)
Price range$2,103 – $3,900cheapest: 9,000 BTU wall mount system$398 – $5,068cheapest: 9,000 BTU wall mount indoor unit (MSI-24)
Largest system24,000 BTU/h24,000 BTU ceiling cassette system48,000 BTU/h48,000 BTU concealed duct system (RYB-20)
Highest SEER2 (cooling efficiency)2624,000 BTU ceiling cassette system24.612,000 BTU floor console system (FYB-24)
Highest HSPF2 (heating efficiency)10.49,000 BTU wall mount system13.518,000 BTU floor console system (FYB-24)
Most heat at 5 °F19,000 BTU/h24,000 BTU wall mount system40,500 BTU/h48,000 BTU ceiling cassette system (CYB-20)
Keeps heating in the coldest weathernone published-13 °F55,000 BTU 6-zone multi-zone outdoor unit (YNL-24)
Longest compressor warranty7 years12,000 BTU ceiling cassette system5 years55,000 BTU 6-zone multi-zone outdoor unit (YNL-24)
Warranty if you install it yourselfLicensed installer requiredon 18 productsKepton 46 products
Where soldHVACDirectPioneer, Amazon

Who makes them?

Different factories: Gree certifies its own units with ENERGY STAR; Pioneer Quantum Ultra's certified ratings match models TCL certifies under its own name.

Gree Vireo

confirmed Gree. source ↗

Pioneer Quantum Ultra

24 of Pioneer Quantum Ultra's 26 ENERGY STAR certified systems carry certified ratings identical to models a factory certifies under its own name: TCL (15) and Midea (9). Most point to TCL (inferred from the certification records; not a statement by Pioneer).

  • TCL: 15 systems with identical certified ratings
  • Midea: 9 systems with identical certified ratings

How we work out who makes what →

Part by part

Matched by each product's size tier within its own line, so a row pairs each brand's compact, medium, large or XL piece. Tiers are for lining lineups up; the dimensions say how big each one really is.

Single-zone systems 18 vs 27

TierGree VireoPioneer Quantum Ultra
9,000 BTU
9,000 BTU ceiling cassette system 9,000 BTU/h · 24 · $2,731
9,000 BTU concealed duct system 9,000 BTU/h · 22 · $2,578
9,000 BTU floor console system 9,000 BTU/h · 23 · $2,173
9,000 BTU floor/ceiling system 9,000 BTU/h · 25 · $2,728
9,000 BTU wall mount system 9,000 BTU/h · 26 · $2,103
9,000 BTU 115V wall mount system (WYT-24) 9,000 BTU/h · 23 · $1,053
9,000 BTU ceiling cassette system (CYT-24) 9,000 BTU/h · 23 · $1,443
9,000 BTU concealed duct system (RYT-24) 9,000 BTU/h · 19.6 · $1,363
9,000 BTU one-way cassette system (CYK-24) 9,000 BTU/h · 22.1 · $2,293
9,000 BTU wall mount system (WYT-24) 9,000 BTU/h · 23 · $1,023
12,000 BTU
12,000 BTU ceiling cassette system 12,000 BTU/h · 23 · $2,682
12,000 BTU concealed duct system 12,000 BTU/h · 21 · $2,649
12,000 BTU floor console system 12,000 BTU/h · 23 · $2,226
12,000 BTU floor/ceiling system 12,000 BTU/h · 23 · $2,769
12,000 BTU wall mount system 12,000 BTU/h · 24.5 · $2,143
12,000 BTU 115V wall mount system (WYT-24) 12,000 BTU/h · 23 · $1,133
12,000 BTU ceiling cassette system (CYT-24) 12,000 BTU/h · 21 · $1,533
12,000 BTU concealed duct system (RYT-24) 12,000 BTU/h · 19 · $1,413
12,000 BTU floor console system (FYB-24) 12,000 BTU/h · 24.6 · $1,573
12,000 BTU one-way cassette system (CYK-24) 12,000 BTU/h · 22.1 · $2,403
12,000 BTU wall mount system (WYT-24) 12,000 BTU/h · 24 · $1,113
18,000 BTU
18,000 BTU ceiling cassette system 18,000 BTU/h · 24.5 · $3,303
18,000 BTU concealed duct system 18,000 BTU/h · 24.5 · $3,399
18,000 BTU floor console system 18,000 BTU/h · 24.5 · $2,859
18,000 BTU floor/ceiling system 18,000 BTU/h · 24.5 · $3,338
18,000 BTU ceiling cassette system (CYT-24) 18,000 BTU/h · 20.5 · Out of stock
18,000 BTU concealed duct system (RYT-24) 18,000 BTU/h · 20.3 · $1,753
18,000 BTU floor console system (FYB-24) 18,000 BTU/h · 23.8 · $2,063
18,000 BTU floor/ceiling system (UYT-24) 18,000 BTU/h · 20.5 · $1,813
18,000 BTU one-way cassette system (CYK-24) 18,000 BTU/h · 22.2 · $2,743
18,000 BTU wall mount system (WYT-24) 18,000 BTU/h · 23 · Out of stock
24,000 BTU
24,000 BTU ceiling cassette system 24,000 BTU/h · 26 · $3,745
24,000 BTU concealed duct system 24,000 BTU/h · 26 · $3,772
24,000 BTU floor/ceiling system 24,000 BTU/h · 26 · $3,900
24,000 BTU wall mount system 24,000 BTU/h · 26 · $3,394
24,000 BTU ceiling cassette system (CYT-24) 24,000 BTU/h · 22.5 · Out of stock
24,000 BTU concealed duct system (RYT-24) 24,000 BTU/h · 19 · $2,238
24,000 BTU floor/ceiling system (UYT-24) 24,000 BTU/h · 20 · $2,188
24,000 BTU wall mount system (WYT-24) 24,000 BTU/h · 23 · $1,958
36,000 BTU —
36,000 BTU ceiling cassette system (CYB-20) 36,000 BTU/h · 20 · $3,858
36,000 BTU concealed duct system (RYB-20) 36,000 BTU/h · 18.7 · $3,818
36,000 BTU floor/ceiling system (UYB-20) 36,000 BTU/h · 20 · Out of stock
48,000 BTU —
48,000 BTU ceiling cassette system (CYB-20) 48,000 BTU/h · 19 · Out of stock
48,000 BTU concealed duct system (RYB-20) 48,000 BTU/h · 17.1 · $5,068
48,000 BTU floor/ceiling system (UYB-20) 48,000 BTU/h · 19.8 · $4,938

All single-zone systems from both brands, side by side →

Only one of them makes

  • Pioneer Quantum Ultra only: multi-zone outdoor units, indoor units.

Questions

Are Gree Vireo and Pioneer Quantum Ultra made by the same company?

Different factories: Gree certifies its own units with ENERGY STAR; Pioneer Quantum Ultra's certified ratings match models TCL certifies under its own name. How we work it out.

Which is cheaper, Gree Vireo or Pioneer Quantum Ultra?

On the prices we have (as of October 14, 2026), the cheapest Gree Vireo system is the 9,000 BTU wall mount system at $2,103, and the cheapest Pioneer Quantum Ultra system is the 9,000 BTU wall mount system (WYT-24) at $1,023. Prices are re-checked weekly.

Which has more products, Gree Vireo or Pioneer Quantum Ultra?

Gree Vireo: 18 products on sale across 1 categories. Pioneer Quantum Ultra: 46 across 3.

Which is more efficient at cooling, Gree Vireo or Pioneer Quantum Ultra?

By the brands' own figures: 26 for Gree Vireo (24,000 BTU ceiling cassette system) and 24.6 for Pioneer Quantum Ultra (12,000 BTU floor console system (FYB-24)). Seasonal cooling efficiency under the 2023 test procedure. Higher uses less electricity.

Which is more efficient at heating, Gree Vireo or Pioneer Quantum Ultra?

By the brands' own figures: 10.4 for Gree Vireo (9,000 BTU wall mount system) and 13.5 for Pioneer Quantum Ultra (18,000 BTU floor console system (FYB-24)). Seasonal heating efficiency under the 2023 test procedure. Higher uses less electricity.

Which puts out more heat at 5 °F, Gree Vireo or Pioneer Quantum Ultra?

By the brands' own figures: 19,000 BTU/h for Gree Vireo (24,000 BTU wall mount system) and 40,500 BTU/h for Pioneer Quantum Ultra (48,000 BTU ceiling cassette system (CYB-20)). Heat output with 5 °F outdoors, from the certification record. Published for units certified for cold climates.

Which has the longer compressor warranty, Gree Vireo or Pioneer Quantum Ultra?

By the brands' own figures: 7 years for Gree Vireo (12,000 BTU ceiling cassette system) and 5 years for Pioneer Quantum Ultra (55,000 BTU 6-zone multi-zone outdoor unit (YNL-24)). Years of compressor coverage under the brand's warranty, often only when registered. Conditions are on the product page.

Which has the better warranty if you install it yourself, Gree Vireo or Pioneer Quantum Ultra?

Gree Vireo publishes Licensed installer required on 18 of its 18 products; Pioneer Quantum Ultra publishes Kept on 46 of its 46 products. 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.

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