Summer 2026 Sale: $100 Off 5th Gen DIY Systems
The HVACZAR Summer 2026 Sale is live! Use code SUMMER100 for $100 off any MrCool 5th Gen DIY mini split system. Don't miss the best deal of the year.
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Summer 2026 Sale: $100 Off 5th Gen DIY Systems
The HVACZAR Summer Sale Is Live
Summer is here, and so is the best deal of the year on MrCool's most popular mini split systems. For a limited time, use promo code SUMMER100 at checkout to get $100 off any MrCool 5th Generation DIY mini split system at HVACZAR.
This is the deal you've been waiting for. Whether you need to cool a single room, outfit your entire home, or finally replace that window unit, now is the time to act.
🏷️ Promo Code: SUMMER100
$100 Off Any 5th Gen DIY System
How to use it:
- Browse HVACZAR's MrCool collection
- Add any 5th Gen DIY system to your cart
- Enter code SUMMER100 at checkout
- Save $100 instantly
No minimum purchase. No strings attached. One code per order.
Every 5th Gen DIY System Is On Sale
9K BTU Bundle — Perfect for Bedrooms and Offices
- Cools and heats rooms up to 350 sq ft
- Runs on standard 115V outlet — no electrician needed
- SEER2 20+ efficiency
- Whisper-quiet 22 dB indoor operation
- Use code SUMMER100 at checkout
12K BTU Bundle — The Bestseller
- Cools and heats rooms up to 550 sq ft
- The most popular size for bedrooms and living rooms
- Runs on standard 115V outlet
- SEER2 22+ — among the most efficient systems on the market
- Use code SUMMER100 at checkout
18K BTU Bundle — Big Room Power
- Cools and heats spaces up to 900 sq ft
- Perfect for large living rooms, master suites, and open floor plans
- 230V — may need a dedicated circuit
- Use code SUMMER100 at checkout
24K BTU Bundle — Whole-Area Comfort
- Cools and heats areas up to 1,200 sq ft
- Ideal for large open spaces and small whole-home applications
- 230V operation
- Use code SUMMER100 at checkout
36K BTU Bundle — Maximum Coverage
- Cools and heats up to 1,600 sq ft
- The biggest single-zone system in the lineup
- Perfect for large areas or primary whole-home cooling
- Use code SUMMER100 at checkout
Why the 5th Gen DIY Is the Best Mini Split on the Market
The MrCool 5th Generation DIY line represents the pinnacle of homeowner-installable HVAC. Here's what makes it special:
True DIY Installation
No HVAC contractor needed. No vacuum pump. No brazing. No special tools. The pre-charged line sets with quick-connect fittings install in 3-5 hours with basic household tools.
Everything you need comes in the box:
- Indoor air handler unit
- Outdoor condenser unit
- Pre-charged line set with quick-connect fittings
- Communication cable
- Wall mounting bracket and hardware
- Remote control
- Installation manual
For a step-by-step walkthrough, check out Zomg the Handyman on YouTube.
Industry-Leading Efficiency
With SEER2 ratings above 20, the 5th Gen DIY line is 40-60% more efficient than the average existing central air system. That means lower electric bills from day one.
Monthly energy savings example (vs. 10-year-old central AC):
- Summer: Save $50-$150/month
- Winter: Save $40-$120/month
- Annual total: $600-$1,800/year
Your energy savings alone can pay for the system within 1-3 years.
Year-Round Comfort
These aren't just air conditioners. They're heat pumps — providing both cooling and heating from a single system. Cool your home in July, heat it in January, all from the same unit.
Operating range: -22°F to 122°F. Whether you're in Phoenix or Minneapolis, the 5th Gen handles it.
Whisper-Quiet Operation
At 22 dB on the lowest setting, the indoor unit is quieter than a whisper. You'll forget it's running. Compare that to:
- Window AC: 50-65 dB
- Portable AC: 55-70 dB
- Central air registers: 40-55 dB
Stack Your Savings: SUMMER100 + Tax Credits + Rebates
The SUMMER100 code is just the beginning. Here's how to maximize your total savings:
Layer 1: SUMMER100 Promo Code
Savings: $100 — Applied instantly at checkout
Layer 2: Federal Tax Credit (25C)
Savings: Up to $2,000 — MrCool 5th Gen systems qualify for the Section 25C heat pump tax credit. Claim it when you file your federal taxes using IRS Form 5695.
Layer 3: State and Utility Rebates
Savings: $200-$1,000+ — Many states and utilities offer additional rebates for heat pump installations. Check DSIRE for rebates in your area.
Layer 4: DIY Installation Savings
Savings: $1,500-$3,000 — By installing the system yourself, you eliminate professional labor costs entirely.
Total Potential Savings Stack
| Savings Source | Amount |
|---|---|
| SUMMER100 code | $100 |
| Federal tax credit | Up to $2,000 |
| State/utility rebate (varies) | $200-$1,000 |
| DIY labor savings | $1,500-$3,000 |
| Total | $3,800-$6,100 |
For many homeowners, this means the system is completely free — or even puts money back in your pocket after tax credits.
Who Should Buy During This Sale?
If You're Suffering Through Summer Heat
Stop waiting. Every day you spend sweating through a hot bedroom, office, or living room is a day you didn't have to. A MrCool 5th Gen system cools your space this weekend — install it Saturday, enjoy it Sunday.
If You're Planning a Renovation
Building an addition? Converting a garage? Finishing a basement? Buy the mini split now at the sale price and install it when the space is ready. The SUMMER100 discount won't last forever.
If Your Central AC Is Struggling
Even if your central air works, adding a mini split to your most-used room lets you raise the central thermostat by 5-7°F while maintaining perfect comfort where it counts. That's immediate energy savings.
If You're Replacing Window Units
Window units cost more to run, cool less effectively, compromise window security, and only last 5-8 years. A mini split is better in every measurable way.
If You Work from Home
A dedicated office mini split keeps your workspace perfect without conditioning the whole house. At 22 dB, it won't disrupt calls. The energy savings vs. running central air all day pay for the system within a year.
If You Have a Room That's Always Too Hot
Upper floors, sun-facing rooms, additions, bonus rooms — these problem areas are the perfect application for a mini split. Install it, set it, forget it. Problem solved.
How to Order
Step 1: Choose Your System
| Room Size | System | Link |
|---|---|---|
| Up to 350 sq ft | 9K BTU | Order Now |
| Up to 550 sq ft | 12K BTU | Order Now |
| Up to 900 sq ft | 18K BTU | Order Now |
| Up to 1,200 sq ft | 24K BTU | Order Now |
| Up to 1,600 sq ft | 36K BTU | Order Now |
Step 2: Apply Your Code
Enter SUMMER100 in the promo code field at checkout.
Step 3: Install and Enjoy
Your system ships fast and installs in an afternoon. By this weekend, you could be enjoying perfect temperature control in your home.
Don't Wait — Summer Doesn't
The SUMMER100 promo code is available for a limited time. Once it's gone, it's gone. Every day you wait is another day of high energy bills and uncomfortable rooms.
Promo Code: SUMMER100
$100 off any MrCool 5th Gen DIY system at HVACZAR.
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