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SpecMrCool Olympus Hyper Heat 18,000 BTU (R-410A, Amazon listing)Senville Aura 18,000 BTU 230V
PhotoMrCool Olympus Hyper Heat 18,000 BTU (R-410A, Amazon listing)Senville Aura 18,000 BTU 230V
Our scoreSCORE7.4 / 10SCORE7.5 / 10
Our takeA capable heat pump on paper but a superseded R-410A generation that cost more than a Senville Aura 18k when we checked.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.Full rated output at 5°F, matching the Olympus E Star 18k value for value, and it cost less than the Amazon Olympus when we checked. Licensed install required.
Nominal size18,000 BTU18,000 BTU
Voltage230V230V
Rated heat at 47°Fn/a18,000 BTU/h
Heat at 17°Fn/a18,000 BTU/h
Heat at 5°Fn/a18,000 BTU/h
Lowest heating temp-22°F-22°F
Max heat at lowest tempn/a8,000 BTU/h
SEER2n/a21.4
HSPF2 (Region IV)n/a11
Install typeFlareFlare
Max line runn/a98.4 ft
Warranty covers owner installNoNo
Warranty, parts5 yr5 yr
Warranty, compressor7 yr10 yrbest
ENERGY STAR Cold Climaten/aYes
ENERGY STARn/aYes
RefrigerantR-410AR-454B
Watch out forAmazon 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.The Amazon 18k listing gives 2 yr parts / 7 yr compressor; confirm the term for the model you receive. The Amazon Aura listings don't state refrigerant. The 12k listing (SENA-12HF-16) shows a 25.5 efficiency figure that matches the older R-410A Aura and a 2 yr parts / 7 yr compressor warranty field; confirm model and refrigerant before you pay. Current R-454B wall pairings are SENA-xxHF-OG + SENA-xxHF-IGG; older R-410A pairings end /OQ + /IQ. Senville's site lists higher HSPF2 and 47°F heat than the AHRI figures on NEEP; we use the certified numbers. Senville's FAQ says no to owner installs, and the warranty requires a licensed HVAC contractor.
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