Category Mini-Splits & Heat Pumps Dehumidifiers Window, Wall & Room Units Heating Parts, Tools & Supplies Model 1 ACiQ Essentials 12,000 BTU 115V (R32) ACiQ Essentials 12,000 BTU 230V (R32) ACiQ Essentials 18,000 BTU 230V (R32) ACiQ Essentials 24,000 BTU 230V (R32) ACiQ Essentials 36,000 BTU 230V (R32) ACiQ Essentials 9,000 BTU 115V (R32) ACiQ Essentials 9,000 BTU 230V (R32) Cooper & Hunter MIA 12,000 BTU 115V Cooper & Hunter MIA 18,000 BTU 230V Cooper & Hunter MIA 24,000 BTU 230V Cooper & Hunter Olivia Hyper Heat 12,000 BTU 230V Cooper & Hunter Olivia Hyper Heat 18,000 BTU 230V Cooper & Hunter Olivia Hyper Heat 24,000 BTU 230V Cooper & Hunter Olivia Hyper Heat 6,000 BTU 230V Cooper & Hunter Olivia Hyper Heat 9,000 BTU 230V Della Serena 12,000 BTU 115V Della Serena 12,000 BTU 230V Della Serena 18,000 BTU 230V Della Serena 24,000 BTU 230V Della Serena 9,000 BTU 115V Della Serena 9,000 BTU 230V Gree Livo R32 12,000 BTU 115V Gree Livo R32 12,000 BTU 230V Gree Livo R32 18,000 BTU 230V Gree Livo R32 24,000 BTU 230V Gree Livo R32 30,000 BTU 230V Gree Livo R32 36,000 BTU 230V Gree Livo R32 9,000 BTU 115V Gree Livo R32 9,000 BTU 230V Gree Sapphire R32 12,000 BTU 230V Gree Sapphire R32 18,000 BTU 230V Gree Sapphire R32 24,000 BTU 230V Gree Sapphire R32 9,000 BTU 230V Klimaire DIY 5th Gen 12,000 BTU 115V Klimaire DIY 5th Gen 12,000 BTU 230V Klimaire DIY 5th Gen 18,000 BTU 230V Klimaire DIY 5th Gen 24,000 BTU 230V Klimaire DIY 5th Gen 36,000 BTU 230V Klimaire DIY 5th Gen 9,000 BTU 115V Klimaire Entrada 18,000 BTU Mitsubishi FX Hyper-Heating 12,000 BTU 230V MrCool Central Ducted Hyper Heat 2nd Gen 2 ton (CENTRAL-24-HP-C-230B00-O) MrCool Central Ducted Hyper Heat 2nd Gen 2.5 ton (CENTRAL-30-HP-C-230B00-O) MrCool Central Ducted Hyper Heat 2nd Gen 3 ton (CENTRAL-36-HP-C-230B00-O) MrCool Central Ducted Hyper Heat 2nd Gen 4 ton (CENTRAL-48-HP-C-230B00-O) MrCool Central Ducted Hyper Heat 2nd Gen 5 ton (CENTRAL-60-HP-C-230B00-O) MrCool DIY 5th Gen 12,000 BTU 115V MrCool DIY 5th Gen 18,000 BTU 230V MrCool DIY 5th Gen 18K Multi-Zone Condenser (3 zones) MrCool DIY 5th Gen 24,000 BTU 230V MrCool DIY 5th Gen 27K Multi-Zone Condenser (4 zones) MrCool DIY 5th Gen 36,000 BTU 230V MrCool DIY 5th Gen 36K Multi-Zone Condenser (5 zones) MrCool DIY 5th Gen 48K Multi-Zone Condenser (6 zones) MrCool DIY 5th Gen 55K Multi-Zone Condenser (6 zones) MrCool DIY 5th Gen 9,000 BTU 115V MrCool DIY Select 12,000 BTU 115V MrCool DIY Select 18,000 BTU 230V MrCool DIY Select 24,000 BTU 230V MrCool DIY Select 9,000 BTU 115V MrCool Easy Pro 12,000 BTU 115V MrCool Easy Pro 18,000 BTU 230V MrCool Easy Pro 24,000 BTU 230V MrCool Easy Pro 9,000 BTU 115V MrCool Olympus E Star 4th Gen 12,000 BTU MrCool Olympus E Star 4th Gen 18,000 BTU MrCool Olympus E Star 4th Gen 24,000 BTU MrCool Olympus E Star 4th Gen 9,000 BTU MrCool Olympus Hyper Heat 18,000 BTU (R-410A, Amazon listing) MrCool Universal 2-ton R-454B (UHP18024-O + UAH18024-O) MrCool Universal 2.5-ton R-454B (UHP18030-O + UAH18030-O) MrCool Universal 3-ton R-454B (UHP18036-O + UAH18036-O) MrCool Universal 4-ton R-454B (UHP18048-O + UAH18048-O) MrCool Universal 5-ton R-454B (UHP18060-O + UAH18060-O) Pioneer Diamante Pro 12,000 BTU 115V Pioneer Diamante Pro 12,000 BTU 230V Pioneer Diamante Pro 18,000 BTU 230V Pioneer Diamante Pro 24,000 BTU 230V Pioneer Diamante Pro 9,000 BTU 115V Pioneer Diamante Pro 9,000 BTU 230V Senville Aura 12,000 BTU 230V Senville Aura 18,000 BTU 230V Senville Aura 18K Multi-Zone Condenser (SENA-18HF-MOA) Senville Aura 24,000 BTU 230V Senville Aura 28K Multi-Zone Condenser (SENA-28HF-MOA) Senville Aura 36K Multi-Zone Condenser (SENA-36HF-MOA) Senville Aura 48K Multi-Zone Condenser (SENA-48HF-MOA) Senville Aura 9,000 BTU 230V Senville Elite 12,000 BTU 230V Senville Elite 18,000 BTU 230V Senville Elite 24,000 BTU 230V Senville Elite 9,000 BTU 230V Senville Leto 12,000 BTU 115V Senville Leto 12,000 BTU 230V Senville Leto 18,000 BTU 230V Senville Leto 24,000 BTU 230V Senville Leto 36,000 BTU 230V Senville Leto 9,000 BTU 115V Senville Leto 9,000 BTU 230V Model 2 ACiQ Essentials 12,000 BTU 115V (R32) ACiQ Essentials 12,000 BTU 230V (R32) ACiQ Essentials 18,000 BTU 230V (R32) ACiQ Essentials 24,000 BTU 230V (R32) ACiQ Essentials 36,000 BTU 230V (R32) ACiQ Essentials 9,000 BTU 115V (R32) ACiQ Essentials 9,000 BTU 230V (R32) Cooper & Hunter MIA 12,000 BTU 115V Cooper & Hunter MIA 18,000 BTU 230V Cooper & Hunter MIA 24,000 BTU 230V Cooper & Hunter Olivia Hyper Heat 12,000 BTU 230V Cooper & Hunter Olivia Hyper Heat 18,000 BTU 230V Cooper & Hunter Olivia Hyper Heat 24,000 BTU 230V Cooper & Hunter Olivia Hyper Heat 6,000 BTU 230V Cooper & Hunter Olivia Hyper Heat 9,000 BTU 230V Della Serena 12,000 BTU 115V Della Serena 12,000 BTU 230V Della Serena 18,000 BTU 230V Della Serena 24,000 BTU 230V Della Serena 9,000 BTU 115V Della Serena 9,000 BTU 230V Gree Livo R32 12,000 BTU 115V Gree Livo R32 12,000 BTU 230V Gree Livo R32 18,000 BTU 230V Gree Livo R32 24,000 BTU 230V Gree Livo R32 30,000 BTU 230V Gree Livo R32 36,000 BTU 230V Gree Livo R32 9,000 BTU 115V Gree Livo R32 9,000 BTU 230V Gree Sapphire R32 12,000 BTU 230V Gree Sapphire R32 18,000 BTU 230V Gree Sapphire R32 24,000 BTU 230V Gree Sapphire R32 9,000 BTU 230V Klimaire DIY 5th Gen 12,000 BTU 115V Klimaire DIY 5th Gen 12,000 BTU 230V Klimaire DIY 5th Gen 18,000 BTU 230V Klimaire DIY 5th Gen 24,000 BTU 230V Klimaire DIY 5th Gen 36,000 BTU 230V Klimaire DIY 5th Gen 9,000 BTU 115V Klimaire Entrada 18,000 BTU Mitsubishi FX Hyper-Heating 12,000 BTU 230V MrCool Central Ducted Hyper Heat 2nd Gen 2 ton (CENTRAL-24-HP-C-230B00-O) MrCool Central Ducted Hyper Heat 2nd Gen 2.5 ton (CENTRAL-30-HP-C-230B00-O) MrCool Central Ducted Hyper Heat 2nd Gen 3 ton (CENTRAL-36-HP-C-230B00-O) MrCool Central Ducted Hyper Heat 2nd Gen 4 ton (CENTRAL-48-HP-C-230B00-O) MrCool Central Ducted Hyper Heat 2nd Gen 5 ton (CENTRAL-60-HP-C-230B00-O) MrCool DIY 5th Gen 12,000 BTU 115V MrCool DIY 5th Gen 18,000 BTU 230V MrCool DIY 5th Gen 18K Multi-Zone Condenser (3 zones) MrCool DIY 5th Gen 24,000 BTU 230V MrCool DIY 5th Gen 27K Multi-Zone Condenser (4 zones) MrCool DIY 5th Gen 36,000 BTU 230V MrCool DIY 5th Gen 36K Multi-Zone Condenser (5 zones) MrCool DIY 5th Gen 48K Multi-Zone Condenser (6 zones) MrCool DIY 5th Gen 55K Multi-Zone Condenser (6 zones) MrCool DIY 5th Gen 9,000 BTU 115V MrCool DIY Select 12,000 BTU 115V MrCool DIY Select 18,000 BTU 230V MrCool DIY Select 24,000 BTU 230V MrCool DIY Select 9,000 BTU 115V MrCool Easy Pro 12,000 BTU 115V MrCool Easy Pro 18,000 BTU 230V MrCool Easy Pro 24,000 BTU 230V MrCool Easy Pro 9,000 BTU 115V MrCool Olympus E Star 4th Gen 12,000 BTU MrCool Olympus E Star 4th Gen 18,000 BTU MrCool Olympus E Star 4th Gen 24,000 BTU MrCool Olympus E Star 4th Gen 9,000 BTU MrCool Olympus Hyper Heat 18,000 BTU (R-410A, Amazon listing) MrCool Universal 2-ton R-454B (UHP18024-O + UAH18024-O) MrCool Universal 2.5-ton R-454B (UHP18030-O + UAH18030-O) MrCool Universal 3-ton R-454B (UHP18036-O + UAH18036-O) MrCool Universal 4-ton R-454B (UHP18048-O + UAH18048-O) MrCool Universal 5-ton R-454B (UHP18060-O + UAH18060-O) Pioneer Diamante Pro 12,000 BTU 115V Pioneer Diamante Pro 12,000 BTU 230V Pioneer Diamante Pro 18,000 BTU 230V Pioneer Diamante Pro 24,000 BTU 230V Pioneer Diamante Pro 9,000 BTU 115V Pioneer Diamante Pro 9,000 BTU 230V Senville Aura 12,000 BTU 230V Senville Aura 18,000 BTU 230V Senville Aura 18K Multi-Zone Condenser (SENA-18HF-MOA) Senville Aura 24,000 BTU 230V Senville Aura 28K Multi-Zone Condenser (SENA-28HF-MOA) Senville Aura 36K Multi-Zone Condenser (SENA-36HF-MOA) Senville Aura 48K Multi-Zone Condenser (SENA-48HF-MOA) Senville Aura 9,000 BTU 230V Senville Elite 12,000 BTU 230V Senville Elite 18,000 BTU 230V Senville Elite 24,000 BTU 230V Senville Elite 9,000 BTU 230V Senville Leto 12,000 BTU 115V Senville Leto 12,000 BTU 230V Senville Leto 18,000 BTU 230V Senville Leto 24,000 BTU 230V Senville Leto 36,000 BTU 230V Senville Leto 9,000 BTU 115V Senville Leto 9,000 BTU 230V + Add a model
Spec Senville Leto 24,000 BTU 230V MrCool Olympus E Star 4th Gen 24,000 BTU Photo Our score SCORE 6.4 / 10 SCORE 7.4 / 10 Our take The Leto that holds the most of its rating at 5°F (71%), and the one we'd pick if you want a Leto mainly for heat. Big output in the cold (24,200 BTU/h at 5°F), but it doesn't turn down any lower than the 18k on a mild day, so size it from a load calculation. Nominal size 24,000 BTU 24,000 BTU Voltage 230V 230V Rated heat at 47°F 24,000 BTU/h 29,000 BTU/h Heat at 17°F 20,800 BTU/h 22,200 BTU/hbest Heat at 5°F 17,000 BTU/h 24,200 BTU/hbest Lowest heating temp 5°F -22°Fbest Max heat at lowest temp n/a 11,900 BTU/h SEER2 18.7 21best HSPF2 (Region IV) n/a 13.5 Install type Flare Flare Max line run 164 ft n/a Warranty covers owner install No No Warranty, parts 5 yr 5 yr Warranty, compressor 5 yr 7 yrbest ENERGY STAR Cold Climate Yes Yes ENERGY STAR n/a Yes Refrigerant R-454B R-454B Watch out for NEEP marks it ENERGY STAR Cold Climate but not ENERGY STAR, an inconsistent combination; check the ENERGY STAR directory if a rebate depends on it. Amazon Leto listings don't state refrigerant; current R-454B pairings are SENL-xxCD-OL + SENL-xxCD-ILL, older R-410A ones end /OY + /IY. Senville's FAQ says no to owner installs, and the warranty requires a licensed HVAC contractor. MrCool's submittal and install manual disagree on max line length (164 ft vs 213 ft); work to the manual that ships with the unit. "E Star" and the O-ES prefix also appear on an older R-410A Olympus (-230B condensers); confirm R-454B and an outdoor model ending -230C-O1. The Olympus listings on Amazon are the legacy R-410A Hyper Heat, not this unit. MrCool's FAQ says an HVAC professional must install it; the warranty's softer "may be necessary" wording doesn't change that. More Model details Our full review Maker / dealer page → Model details Our full review Maker / dealer page →
