McCool SupplyMr Cool DIY · Independent MRCOOL Dealer · Texas
Call/Text (214) 771-8818

DIY mini-splits, shipped to your door.

Genuine MRCOOL systems, sized and priced for the do-it-yourselfer and the working contractor. No install crew, no markup for a showroom — just the equipment, sent straight to you, with a real person on the phone if you need help picking the right size.

121
DIY systems & parts in stock
Direct
Ships from MRCOOL, no middleman
TX
Licensed & tax-registered dealer
Free consultation for veterans, first responders & teachers

Not sure what size you need? Call or text (214) 771-8818 and tell us you serve or served. We’ll help you size your system, pick the right voltage and line set, and plan the install, free.

MRCOOL 5th Gen DIY single-zone system, indoor and outdoor units with included line set and Quick Connect fittings

Same systems, whether it's a kid's bedroom, a cabin great room, or the wall outside.

No online checkout yet — every order is confirmed by phone or text first, so you get the right size and voltage before anything ships.

1. Find your system

Browse by zone type and size below, or text a photo of your space and I'll help you size it.

2. Call or text to confirm

We confirm the model, voltage, and line-set length, and I take payment over the phone (card) or by PayPal invoice.

3. Ships direct from MRCOOL

Your order drop-ships straight from the manufacturer — no warehouse delay, tracking sent as soon as it's out.

Prices shown are the manufacturer's minimum advertised price. Final price confirmed at order.

Where things stand for 2026, in plain English. Programs change often, so always check the links before you count on money back.

Ended

Federal tax credit (25C)

The 30% federal tax credit for heat pumps ended for systems installed after December 31, 2025. A mini-split installed in 2026 does not qualify.

IRS: Energy Efficient Home Improvement Credit

Not open yet

Federal rebates run by Texas (HEAR & HOMES)

Federal money still exists, handed out by the Texas State Energy Conservation Office. HEAR is for income-qualified households (up to $14,000 per home, including heat pumps). HOMES is for any income (up to $8,000, based on energy saved). Texas has not opened applications yet.

Texas SECO: check status & join the mailing list

Available

Your electric utility

Many Texas utilities pay rebates for efficient heat pumps. In Dallas–Fort Worth, Oncor’s programs run through participating contractors, usually January to November each year.

Oncor residential programs

Installing it yourself? Most rebate programs pay through a participating contractor and need proof of professional installation. A DIY install usually won’t qualify. If a rebate matters to you, read the program rules before you buy, or call us and we’ll help you figure it out.
  1. Find your electric utility on your power bill (Oncor, CoServ, Farmers Electric, and so on).
  2. Check its rebate page for heat pump or mini-split programs, and note whether it requires a participating contractor.
  3. Search your ZIP code on the ENERGY STAR Rebate Finder and DSIRE for anything else in your area.
  4. Sign up for Texas SECO updates so you hear when HEAR and HOMES open.
  5. Keep your paperwork: the receipt, the model numbers, and the AHRI certificate for your system. Most programs ask for them.

Last checked September 26, 2026. This is general information, not tax or legal advice. Program rules, amounts and dates can change at any time; the program’s own website is the final word.