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MrCool DIY 5th Gen 36,000 BTU 230V
MrCool · DIY 5th Gen

MrCool DIY 5th Gen 36,000 BTU 230V

Model DIY-36-HP-C-230D25-O · DIY-36-HP-WMAH-230D25-O

SCORE6.9 / 10

The most heat in the line at -13°F, but it is a lot of unit for a garage, gives up efficiency and carries neither ENERGY STAR label.

Specs

SpecMrCool DIY 5th Gen 36,000 BTU 230V
Nominal size36,000 BTU
Voltage230V
Rated heat at 47°F36,000 BTU/h
Heat at 17°F23,400 BTU/h
Heat at 5°F22,000 BTU/h
Lowest heating temp-13°F
Max heat at lowest temp14,400 BTU/h
SEER218
HSPF2 (Region IV)8.5
Install typeQuick-connect
Line set in box25 ft
Max line run75 ft
Warranty covers owner installYes
Warranty, parts5 yr
Warranty, compressor7 yr
ENERGY STAR Cold ClimateNo
ENERGY STARNo
RefrigerantR-454B
Electrical208/230V, 33 A min circuit ampacity, 35 A max breaker
Max rise75 ft

Sources: NEEP ccASHP list · MRCOOL DIY 5th Gen install manual · MRCOOL DIY 5th Gen warranty (rev. 07.03.25) · MRCOOL product data

Before you buy

  • 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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