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Pick two to four models. The best figure in each row is marked, and every number comes from the maker, NEEP or ENERGY STAR. Copy the URL to share a comparison.

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SpecACiQ Essentials 24,000 BTU 230V (R32)Senville Aura 24,000 BTU 230V
PhotoACiQ Essentials 24,000 BTU 230V (R32)Senville Aura 24,000 BTU 230V
Our scoreSCORE6.4 / 10SCORE7.5 / 10
Our take16,000 Btu/h at 5°F per ACiQ, 67% of its rating, on a 30 A circuit. Size it from a load calculation; the data sheet and the listing disagree on room size.For a big open zone in a cold climate with a contractor doing the install: 24,200 BTU/h at 5°F. Its high minimum output rules out single rooms.
Nominal size24,000 BTU24,000 BTU
Voltage230V230V
Rated heat at 47°F24,000 BTU/h29,000 BTU/h
Heat at 17°F18,000 BTU/h22,200 BTU/hbest
Heat at 5°Fn/a24,200 BTU/h
Lowest heating temp-4°F-22°Fbest
Max heat at lowest temp13,000 BTU/hbest11,900 BTU/h
SEER220n/a
HSPF2 (Region IV)9.513.5best
Install typeFlareFlare
Line set in box16 ftn/a
Max line run65 ft164 ftbest
Warranty covers owner installNoNo
Warranty, parts4 yr5 yrbest
Warranty, compressor6 yr10 yrbest
ENERGY STAR Cold ClimateNoYes
ENERGY STARNoYes
RefrigerantR-32R-454B
Watch out forTwo Essentials 20 SEER2 lines exist: this R32 one (model numbers with -32-) and an R-454B one with different numbers; NEEP lists only the R-454B units. The 5°F and -4°F figures are ACiQ's own maximums from its submittal, not NEEP or AHRI ratings. Warranty is 3 yr parts / 5 yr compressor unregistered; 4 / 6 needs registration within 90 days, and the whole system must be installed and diagnosed by an EPA-certified technician. Sold on Amazon by HVACDirect Online.Senville's 24k page shows a ceiling-cassette spec table, so these figures come from NEEP only. The Amazon 24k listing (SENA/24HF) doesn't state refrigerant; confirm the model before you pay. 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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