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SpecSenville Aura 18K Multi-Zone Condenser (SENA-18HF-MOA)MrCool Olympus Hyper Heat 18,000 BTU (R-410A, Amazon listing)
PhotoSenville Aura 18K Multi-Zone Condenser (SENA-18HF-MOA)MrCool Olympus Hyper Heat 18,000 BTU (R-410A, Amazon listing)
Our scoreSCORE6.8 / 10SCORE7.4 / 10
Our takeThe small R-454B multi: 19,000 Btu/h at 5°F and heat to -22°F for two or three small rooms, with a 5,700 Btu/h minimum. Flare-and-vacuum install by a pro.A capable heat pump on paper but a superseded R-410A generation that cost more than a Senville Aura 18k when we checked. Buy it only with an installer who will commission R-410A.
Nominal size18,000 BTU18,000 BTU
Voltage230V230V
Rated heat at 47°F20,000 BTU/hn/a
Heat at 17°F20,000 BTU/hn/a
Heat at 5°F19,000 BTU/hn/a
Lowest heating temp-22°F-22°F
Max heat at lowest temp10,000 BTU/hn/a
SEER225n/a
HSPF2 (Region IV)10.4n/a
Install typeFlareFlare
Warranty covers owner installNoNo
Warranty, parts5 yr5 yr
Warranty, compressor10 yrbest7 yr
ENERGY STAR Cold ClimateYesn/a
ENERGY STARYesn/a
RefrigerantR-454BR-410A
Watch out forMOA outdoor units are listed as R-454B on Senville's pages and NEEP; NEEP lists the MOB units as R-410A, and an owner of an earlier SENA-28HF-MOA reports R-410A. Confirm the refrigerant on the label. Senville's FAQ says owner installs are not supported; the warranty certificate requires a licensed professional, and labor is never covered.Amazon lists model O-HH-18-HP-230E and no refrigerant; its "20 SEER" matches the 2022 R-410A O-HH-18-HP-C-230. The no-suffix model has no NEEP listing we could find. The legacy warranty applies only to installs by a state certified or licensed HVAC contractor. R-410A parts may be hard to find; one owner couldn't source a matching MrCool wall unit.
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