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SpecMrCool DIY 5th Gen 24,000 BTU 230VSenville Elite 24,000 BTU 230V
PhotoMrCool DIY 5th Gen 24,000 BTU 230VSenville Elite 24,000 BTU 230V
Our scoreSCORE6.9 / 10SCORE7.6 / 10
Our takePlenty of heat at 5°F for a bigger garage, but at -13°F it makes less than the 18k, so it is the wrong upsize if your coldest nights are the problem.Makes less at 5°F than the 18K (20,000 vs 22,600) and NEEP files it as centrally ducted; the least-documented Elite size.
Nominal size24,000 BTU24,000 BTU
Voltage230V230V
Rated heat at 47°F24,000 BTU/h24,000 BTU/h
Heat at 17°F17,900 BTU/hbest17,100 BTU/h
Heat at 5°F16,100 BTU/h20,000 BTU/hbest
Lowest heating temp-13°F-22°Fbest
Max heat at lowest temp10,100 BTU/h10,200 BTU/hbest
SEER222.725best
HSPF2 (Region IV)9.511best
Install typeQuick-connectFlare
Line set in box25 ftbest16 ft
Max line run75 ftn/a
Warranty covers owner installYesNo
Warranty, parts5 yr10 yrbest
Warranty, compressor7 yr10 yrbest
ENERGY STAR Cold ClimateNoYes
ENERGY STARYesYes
RefrigerantR-454BR-454B
Watch out forMRCOOL's catalog ticks ENERGY STAR Cold Climate for this size; NEEP's record says ENERGY STAR yes, Cold Climate no. Check the rebate program's own list. 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.Senville's FAQ says no to owner installs; warranty registration asks for the installing company and invoice. Senville's site lists higher HSPF2 than the AHRI figures on NEEP; we use the certified numbers. No published max line length for the 24K; Senville's page lists 24.0 SEER2 / 11.0 EER2 vs 25.0 / 14.0 on NEEP.
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