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SpecMrCool DIY 5th Gen 9,000 BTU 115VMrCool DIY 5th Gen 12,000 BTU 115V
PhotoMrCool DIY 5th Gen 9,000 BTU 115VMrCool DIY 5th Gen 12,000 BTU 115V
Our scoreSCORE6.9 / 10SCORE6.9 / 10
Our takeThe most efficient size in the line and a fair bedroom heater on 115V, but at -13°F it is down to a 3,800 BTU/h maximum, so cold nights need backup heat.Our default no-vacuum kit for a garage, shop or room on 115V, with a warranty that covers your own install and the line set. It makes 8,400 BTU/h at 5°F, less than cheaper flare units, and only 3,800 at -13°F.
Nominal size9,000 BTU12,000 BTU
Voltage115V115V
Rated heat at 47°F10,000 BTU/h12,000 BTU/h
Heat at 17°F7,500 BTU/h8,500 BTU/hbest
Heat at 5°F7,300 BTU/h8,400 BTU/hbest
Lowest heating temp-13°F-13°F
Max heat at lowest temp3,800 BTU/h3,800 BTU/h
SEER223.6best23.5
HSPF2 (Region IV)11.5best10.2
Install typeQuick-connectQuick-connect
Line set in box25 ft25 ft
Max line run75 ft75 ft
Warranty covers owner installYesYes
Warranty, parts5 yr5 yr
Warranty, compressor7 yr7 yr
ENERGY STAR Cold ClimateYesYes
ENERGY STARYesYes
RefrigerantR-454BR-454B
Watch out forMRCOOL also called its older R-410A 4th Gen DIY "E Star"; confirm R-454B and a model number of the form DIY-...D25-O. DIYS- is the cheaper DIY Select and EZPRO- is the Easy Pro; a listing that says "5th Gen" and "Select" is the Select. The manual says the line sets install once; reconnecting them, or the pipes at the outdoor unit, voids the warranty.One Amazon listing with this model number is sold as a "Condenser"; confirm the wall unit is in the box before you pay. MRCOOL also called its older R-410A 4th Gen DIY "E Star"; confirm R-454B and a model number of the form DIY-...D25-O. DIYS- is the cheaper DIY Select and EZPRO- is the Easy Pro; a listing that says "5th Gen" and "Select" is the Select. The manual says the line sets install once; reconnecting them, or the pipes at the outdoor unit, voids the warranty.
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