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DIY Mini Splits
Shop MRCOOL DIY systems by room count — from single-zone installs to complete six-zone packages, every kit ships with pre-charged line sets.
Shop by brand
Top brands
Central AC & Heat Pump Systems
Cold-climate readyMRCOOL Hyper HeatCentral-unit power with mini split efficiency — full heat deep below freezing.
Shop Hyper Heat
PopularMRCOOL UniversalFlexible central heat pumps with no-vac install for efficient whole-home comfort.
Shop Universal
Pro-Installed Mini Splits
High-efficiency ductless systems from Senville, Daikin, GREE and more — built for professional installation and larger comfort projects.
About Chill Mini Splits
The largest stocking dealer of DIY Mini Splits in the United States
Since 2018, our mission has always been to provide the absolute best quality products, customer experience, and prices available in the mini split industry without exception. We choose to only sell the best performing mini splits, learning them inside and out to ensure your experience with us is second to none.
Verified
Reviews for Chill Mini Splits
3,223 verified customer reviews
Excellent customer service and prompt shipping. Chill Mini Splits helped me choose the right system and answered my questions quickly.
Nice system and easy to install. Good instructions and great phone assistance with a few questions.
Rebates & incentives
Your utility may pay you back for this upgrade
Many utilities and several states run rebate programs for high-efficiency heat pumps. Programs change often and vary by ZIP code — here's how to capture yours.
Check your programs
Look up your ZIP in the ENERGY STAR rebate finder, or send it to us and we'll check what's active near you.
Pick a qualifying system
Utility programs usually favor ENERGY STAR and high-SEER2 heat pumps — most systems we sell qualify.
File with your receipt
Most rebates are a simple post-purchase form. We'll send the spec sheets and documentation you need.
Amounts shown are maximums; actual savings depend on income, household size, utility, and program rules. Some programs require installation by a licensed or participating contractor and/or specific equipment efficiency ratings. Rebate data by Rewiring America. Not tax or legal advice — verify with the program before purchase. Questions? Call us at (888) 231-8920.
Good to know
Mini split questions, answered
What size mini split do I need?
Mini splits are sized in BTUs. As a quick rule, plan on 20–30 BTU per square foot — roughly 12,000 BTU for a 500 sq ft space. Ceiling height, sun exposure, and insulation shift the number, so use the size estimator above or send us your room sizes and we'll spec it for free.
Can I really install a DIY mini split myself?
Yes. MRCOOL DIY systems ship with pre-charged, quick-connect line sets, so there's no vacuum pump and no refrigerant license involved. If you can mount a TV and drill one 3-inch hole, you can handle the install. We do recommend a licensed electrician for the dedicated circuit and disconnect.
Do mini splits heat and cool?
Every system we sell is a heat pump, so it cools in summer and heats in winter — far more efficiently than baseboards or older furnaces. In sub-freezing climates, look at Hyper Heat models, which keep heating well below 0°F.
How much does DIY installation save?
Professional mini split installation is often quoted at $1,500–$3,000+ per zone depending on your market. With a DIY system that labor stays in your pocket — most customers finish a single zone in a weekend with basic tools.
How fast is shipping — and what should I check at delivery?
In-stock systems ship quickly with free curbside freight delivery, typically arriving in about 4–10 days. Before you sign, give every box a quick once-over and note any damage on the delivery receipt — that keeps any freight claim painless.
What about warranty and rebates?
As an authorized dealer, every system we ship carries its full manufacturer warranty — just register it after installation. Many local utilities also offer heat pump rebates; our team can help you find what applies in your area.
