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SpecCooper & Hunter MIA 12,000 BTU 115VSenville Aura 12,000 BTU 230V
PhotoCooper & Hunter MIA 12,000 BTU 115VSenville Aura 12,000 BTU 230V
Our scoreSCORE6.2 / 10SCORE7.5 / 10
Our takeA 115V heat pump for a garage with no 240V circuit, but 6,600 BTU/h at 5°F and a warranty that needs a licensed install. Skip it if you're doing the work yourself.The Senville to buy for real winters, keeping 96% of its rating at 5°F with heat published to -22°F. Budget a licensed installer, because the warranty requires one.
Nominal size12,000 BTU12,000 BTU
Voltage115V230V
Rated heat at 47°F12,000 BTU/h12,000 BTU/h
Heat at 17°F9,000 BTU/h12,000 BTU/hbest
Heat at 5°F6,600 BTU/h11,500 BTU/hbest
Lowest heating temp5°F-22°Fbest
Max heat at lowest tempn/a5,900 BTU/h
SEER221.225.4best
HSPF2 (Region IV)8.710.5best
Install typeFlareFlare
Max line run82 ft82 ft
Warranty covers owner installNoNo
Warranty, parts5 yr5 yr
Warranty, compressor7 yr10 yrbest
ENERGY STAR Cold ClimateNoYes
ENERGY STARNoYes
RefrigerantR-454BR-454B
Watch out forENERGY STAR still lists an older MIA generation under a different model format; confirm CH-RLS...MIA and R454B on the nameplate. C&H's 2025 leaflet ticks "Energy Star for Cold Climate" under every size, but only the 24K is in ENERGY STAR's dataset. C&H paperwork disagrees on whether the line set is in the box; confirm with the seller. The warranty applies only to installs by a licensed HVAC technician registered within 60 days with the installer's license number.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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