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SpecSenville Aura 28K Multi-Zone Condenser (SENA-28HF-MOA)MrCool DIY 5th Gen 27K Multi-Zone Condenser (4 zones)
PhotoSenville Aura 28K Multi-Zone Condenser (SENA-28HF-MOA)MrCool DIY 5th Gen 27K Multi-Zone Condenser (4 zones)
Our scoreSCORE6.8 / 10SCORE6.3 / 10
Our takeHolds its full 27,000 Btu/h rating at 5°F, about 50% more than MrCool's DIY 27K, but needs a licensed installer and turns down only to 8,400 Btu/h.Up to four heads and 18,200 Btu/h at 5°F, enough for a typical bedroom floor. Condenser only on Amazon; buy matching 5th Gen heads separately.
Nominal size28,000 BTU27,000 BTU
Voltage230V230V
Rated heat at 47°F27,000 BTU/h26,000 BTU/h
Heat at 17°F30,000 BTU/hbest16,200 BTU/h
Heat at 5°F27,000 BTU/hbest18,200 BTU/h
Lowest heating temp-22°Fbest-13°F
Max heat at lowest temp14,000 BTU/hbest9,700 BTU/h
SEER22323
HSPF2 (Region IV)10.5best9
Install typeFlareQuick-connect
Line set in boxn/a25 ft
Max line runn/a75 ft
Warranty covers owner installNoYes
Warranty, parts5 yr5 yr
Warranty, compressor10 yrbest7 yr
ENERGY STAR Cold ClimateYesYes
ENERGY STARYesYes
RefrigerantR-454BR-454B
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.The 4th Gen multi-zone (C suffix, R-410A) is a different system; its 18K ran two zones, not three. On earlier generations owners report idle heads still heating or cooling and rooms overshooting setpoint; there is no long 5th Gen record yet. Line sets are one-time installs; runs past the standard 24.6 ft per head and ducted (AHU) air handlers call for added refrigerant per the manual. Sold on Amazon by a third-party seller in small quantities; condenser only, heads and line sets sold separately. NEEP lists its 17°F rating (16,200) below its 5°F rating (18,200).
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