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The MRCOOL DIY Select 24K is a single-zone ductless mini split that heats and cools roughly 900 to 1,150 sq ft. It uses MRCOOL's pre-charged Quick Connect line set, so the refrigerant circuit screws together with basic tools instead of a vacuum pump and gauges. It runs on 230V and uses R454B refrigerant at 16.5 SEER2. It is the stripped-down entry point of the DIY line: you get the same screw-on install and heat pump operation as the pricier DIY units, but lower efficiency and fewer features than the top models.
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The MRCOOL DIY Select 24K is a single-zone mini split air conditioner and heat pump with a 24,000 BTU rating. It is the most affordable system in the MRCOOL DIY line and uses R-454B refrigerant. It is listed for areas of about 900 to 1,150 sq ft, such as a small office, a bedroom or a workshop.
The system uses Quick Connect technology with a pre-charged line set and screw-on fittings. Installation does not need a vacuum pump or specialized gauges, and the maker says it can be done in a few hours with basic tools. The included 11.5 ft line set suits back-to-back mounting of the indoor air handler and outdoor condenser on an exterior wall.
Built-in Wi-Fi compatibility lets you adjust temperature, set schedules and monitor performance through the MRCOOL SmartHVAC app, Amazon Alexa or Google Assistant.
