DIY Mini Split
Systems
Built to Last.
Professional-grade ductless heating and cooling — engineered for self-installation. No vacuum pump. No contractor. No compromise.
Single System • Flareless line sets — cut to length • Ductless


GWIN Assisted DIY 36,000 BTU 20 SEER 230V Single Zone Ductless Mini-Split Complete System With 15 Foot Line Set And Communication Wire
- 230V single phase
- Heating to −13°F
- Complete system
- All GWIN™ guarantees
Description GAJAN36HP230V1ECS Experience superior climate control with the GWIN Assisted DIY 36,000 BTU 20 SEER Single-Zone Ductless Mini-Split System - engineered for reliable performance and advanced comfort feature...
Description GAJAN36HP230V1ECS
Experience superior climate control with the GWIN Assisted DIY 36,000 BTU 20 SEER Single-Zone Ductless Mini-Split System - engineered for reliable performance and advanced comfort features for large spaces and demanding applications.
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One Room, Perfect Comfort: Heat or cool spaces up to 1,400 sq. ft. with independent temperature control and precision airflow for personalized comfort in master bedrooms, large living rooms, studios, and commercial offices.
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Assisted HVAC Done Right: Until GWIN came along, Assisted HVAC was easy to get wrong—small mistakes could create expensive problems. You also used to have to sacrifice quality for affordability. GWIN Assisted DIY fixes all of that with easier installation, better coverage, and top-quality systems without the expensive pro installation costs.
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Advanced Self-Cleaning Technology: Advanced sterilization system reaches 134°F to eliminate bacteria, viruses, dust mites, and pollen for superior air quality. Precision airflow delivery ensures consistent comfort throughout large spaces.
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Exceptional Reliability: Golden Fin Coils resist corrosion and oxidation; Three-Proof outdoor PCB design with UV-adhesive cover reduces failure rates and maintenance needs.
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All-Season Performance: Reliable operation from -13°F to 125°F with automatic base pan heater to reduce ice buildup. Tolerates wide voltage fluctuation (165V–265V) for unstable grid conditions.
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Smart Connectivity: Built-in Wi-Fi control and offline voice commands for convenient operation from anywhere.
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Premium Warranty: 12-Year Compressor (registered) protection for long-term peace of mind.
The GWIN system delivers powerful, efficient heating and cooling with inverter compressor technology, Golden Fin durability, and intelligent features for year-round comfort and lower energy bills—engineered for demanding applications with generous line-set allowances and single-technician installation support.
System Features
- Self-Cleaning: Eliminates bacteria, viruses, dust mites, microorganisms, and dust particles. Advanced sterilization system reaches 134°F to remove viruses, bacteria, dust, and pollen for clean air.
- Outdoor Unit Operation: Reliable performance from -13°F to 125°F for all-season comfort.
- Wide Voltage Fluctuation: Tolerates unstable grid conditions with a range of 125–265V.
- Base Pan Heater: Automatically activates in low temperatures to reduce ice build-up and improve heating efficiency.
- Wi-Fi Control: Built-in Wi-Fi module allows convenient temperature and mode adjustments from anywhere.
- Fast Heating and Cooling: Inverter compressor rapidly achieves your desired room temperature.
- ECO Energy-Saving Mode: Designed to reduce power use and help save energy.
- Easy Installation: Includes installation guide, mounting plate, and built-in level for faster installs.
Built for Reliability
- Golden Fin Coils (indoor and outdoor): Enhanced resistance to corrosion and oxidation versus conventional blue-fin coatings.
- Outdoor PCB "Three-Proof" design: UV-adhesive cover and vertical placement help reduce corrosion and deformation for lower failure rates.
COVERAGE & CAPACITY GUIDE Optimal conditions: 8-foot ceilings and good insulation
36K: 1,400 sq ft
SPECIFICATIONS & DIMENSIONS
SYSTEM OVERVIEW
| System Type | Ductless Mini Split Air Conditioner & Heat Pump | | Zones | 1 | | Capacity | 33,600 BTU (Rated); Range: 7,500–35,500 BTU (Cooling); 8,300–42,000 BTU (Heating) | | SEER2 Rating | 20 | | HSPF2 Rating | 8.5 (Region IV) | | Voltage | 208–230V, 1-Phase, 60 Hz | | Line Sets Included | 1 x 15 ft Line Set + Communication Wire | | Warranty | 12 Years Compressor (registered); 7 Years Parts & Labor |
INDOOR UNIT (36K) x 1
| Model | GAJAN36HP230V1EH | | Dimensions | 48.7"W x 13.9"H x 14.1"D | | Mounting Type | Wall | | Cooling Capacity | 33,600 BTU/h | | Heating Capacity | 34,000 BTU/h @ 47°F; 24,400 BTU/h @ 17°F | | Airflow (CFM) | Cool: 940/833/742/636; Heat: 940/833/742/636 | | Sound Level | Cool: 51/48/44/39/34 dB(A); Heat: 50/48/43/39 dB(A) | | Liquid Line | 1/4"; Gas Line: 5/8"; Drain: 5/8" | | Weight | 35.3 lbs |
OUTDOOR UNIT (36K) x 1
| Model | GAJAN36HP230V1EO | | Dimensions | 38.6"W x 30"H x 15.3"D | | Cooling Capacity | 33,600 BTU/h | | Heating Capacity | 34,000 BTU/h @ 47°F; 24,400 BTU/h @ 17°F; 23,800 BTU/h @ 5°F; 17,000 BTU/h @ -5°F | | Operating Range | Cooling: 5–125°F; Heating: -13–75°F | | Voltage | 208–230V, 1-Phase, 60 Hz | | Power Input | 3,320 W (Cooling); 3,000 W (Heating @ 47°F) | | Breaker/MCA/MOCP | 35A / 20A / 35A | | Outdoor Sound | 59 dB(A) | | Certifications | Tested for wide voltage fluctuation (165V–265V) |
The Evolution of DIY Mini Splits
GWIN™ Assisted DIY™
Most DIY mini splits still leave the hardest parts up to you — pressure testing, vacuuming the system, handling refrigerant, or finding your own tech, and even dealing with bulky pre-charged line sets. GWIN™ HVAC changes all of that with Assisted DIY™. The GWIN Assisted DIY 36,000 BTU 20 SEER 230V Single Zone Ductless Mini-Split Complete System With 15 Foot Line Set And Communication Wire with Assisted DIY™ is an evolution over DIY alone and makes GWIN™ a complete DIY mini split system that includes free expert tech support, with a tech included, so you never need special tools, never touch refrigerant, never run a vacuum pump, and never perform a pressure test. Our line sets with our easy connect flare-less fittings, allow for a professional operating system, with a professional look. Which also means no coiled mess and no guesswork — just a straightforward self-install ductless system that goes in like a true DIY HVACproject, backed by professionals every step of the way. Whether you're cooling or heating a garage, basement, bedroom, sunroom, home addition, tiny home, or cabin — GWIN™ HVAC is the ultimate DIY ductless solution with our Assisted DIY™ for homeowners who want to do it themselves, but done right." GWIN™ HVAC is the advanced version of DIY mini splits.

Upgrades for Flareless Line Set (from 15 feet) In Pre Made Bundles
Flareless Line set upgrade from 15' line set.

GWIN Single Zone 36k BTU 230 V Condenser
- 230V single phase
- Complete system
- All GWIN™ guarantees
No description available.

GWIN Single Zone 36k BTU 230 V SEER20 Wall Mount Air Handler
- 230V single phase
- Complete system
- All GWIN™ guarantees
No description available.

Flareless 1/4 x 3/8 GWIN Line Set for 7k, 9k, & 12k BTU Ductless Mini Split Air Handlers
Flareless 1/4 x 3/8 GWIN Line Set for 7k, 9k, & 12k BTU Air Handlers **Will not work on the ducted mini splits** **FOR CUSTOMERS DOING A SELF INSTALL** For contractors the Flared line set click this link: FLARED...
Flareless 1/4 x 3/8 GWIN Line Set for 7k, 9k, & 12k BTU Air Handlers
**Will not work on the ducted mini splits**
**FOR CUSTOMERS DOING A SELF INSTALL**
For contractors the Flared line set click this link: FLARED LINE SET

Flareless 1/4 x 1/2 GWIN Line Set for 18k & 20k BTU Ductless Mini Split Air Handlers
Flareless 1/4 x 1/2 GWIN Line Set for 18k BTU Ductless Mini Split Air Handlers **Will not work on the ducted mini splits** **FOR CUSTOMERS DOING A SELF INSTALL** For contractors the Flared line set click this link: F...
Flareless 1/4 x 1/2 GWIN Line Set for 18k BTU Ductless Mini Split Air Handlers
**Will not work on the ducted mini splits**
**FOR CUSTOMERS DOING A SELF INSTALL**
For contractors the Flared line set click this link: FLARED LINE SET

Flareless 1/4 x 5/8 GWIN Line Set for 24k, 30k, & 36k BTU Ductless Mini Split Air Handlers
Flareless 1/4 x 5/8 GWIN Line Set for 24k & 36k BTU Ductless Mini Split Air Handlers **Will not work on the ducted mini splits** **FOR CUSTOMERS DOING A SELF INSTALL** For contractors the Flared line set click th...
Flareless 1/4 x 5/8 GWIN Line Set for 24k & 36k BTU Ductless Mini Split Air Handlers
**Will not work on the ducted mini splits**
**FOR CUSTOMERS DOING A SELF INSTALL**
For contractors the Flared line set click this link: FLARED LINE SET

Condenser Ground Stand Brackets
Specifications and dimensions: Length 35" x Width 18" x Height 11" Loading capacity 264 lbs

Condensers Wall Mounting Bracket 18k-36k
Wall mounting brackets for condensers. Can hold up to 3 tons (36k) condensers. Specifications and dimensions: 31x16x20 in. 300 lbs loading capacity Suitable for 9,000-36,000 BTU condensers Equipped with security...
Wall mounting brackets for condensers. Can hold up to 3 tons (36k) condensers.
Specifications and dimensions:
- 31x16x20 in.
- 300 lbs loading capacity
- Suitable for 9,000-36,000 BTU condensers
- Equipped with security clip
- Preassembled set

PVC Line Covers
Line set covers Specifications and dimensions: 13 ft length 3 inches width 2 head wall covers Extra white covers Cold resistance: -40°F Heat resistance: 140°F Lifespan exceeding 10 years

GWIN Line Covers
GWIN 4" x 14 ft. Mini-Split Line Set Cover Kit – Paintable, Weather-Resistant HVAC Protection Give your mini-split installation a clean, professional finish with the GWIN Mini-Split Line Set Cover Kit. Des...
GWIN 4" x 14 ft. Mini-Split Line Set Cover Kit – Paintable, Weather-Resistant HVAC Protection
Give your mini-split installation a clean, professional finish with the GWIN Mini-Split Line Set Cover Kit. Designed to conceal and protect refrigerant tubing, electrical wiring, and drain lines, this durable cover system enhances curb appeal while helping extend the life of your HVAC components. Ideal for residential or light commercial installations, both indoors and outdoors.
Key Features & Benefits
- Complete Installation Kit: Includes straight line-set channels, couplers, wall cover, end cap, and an adjustable elbow for a streamlined, finished look.
- Generous 4" x 14 ft. Coverage: Fits most standard mini-split line sets, electrical cables, and drain hoses with ample interior space for easy routing.
- Durable & Weather-Resistant Construction: Built from high-quality, UV-resistant material to help protect HVAC lines from sun exposure, moisture, debris, and environmental wear.
- Paintable for a Seamless Look: Clean white finish can be painted to match siding, brick, stucco, or interior walls for a custom appearance.
- Easy, Modular Installation: Snap-together design supports quick installation with minimal tools—great for HVAC professionals and DIY homeowners.
Why Choose GWIN?
GWIN accessories are designed to deliver professional-grade performance with clean aesthetics. This line set cover kit not only protects vital HVAC components, but also elevates the overall appearance of your installation so it blends seamlessly into any space.
Product Specifications
- Brand: GWIN
- Application: Mini-split systems, heat pumps, air conditioners
- Coverage Length: 14 ft
- Width: 4 inches
- Color: White (paintable)
- Material: Weather- and UV-resistant PVC
- Indoor / Outdoor Use: Yes
- Installation Type: Surface-mounted, modular snap-fit
Included in This Kit
- Straight line-set cover sections
- Couplers
- Adjustable elbow (90°–120°)
- Wall penetration cover
- End cap
Note: Paint before installation for best results. Verify measurements and routing requirements prior to mounting.

Condenser Pad
This condenser pad will fit all of the GWIN Condensers available. Why purchase an Condenser Pad? 1. Protects the unit from pest, insects and critters that may cause damage to the condenser. 2. Reduce vibration from t...
This condenser pad will fit all of the GWIN Condensers available.
Why purchase an Condenser Pad?
1. Protects the unit from pest, insects and critters that may cause damage to the condenser.
2. Reduce vibration from the AC against this pad so it does not hit against the ground. If a condenser is not placed on a support system like a pad, you risk damage being done each time the condenser vibrates against the ground.
Pros
- Unaffected by UV or weather
- Uniform rubbing transfers load evenly
- Lightweight, yet incredibly rugged
Material Type: Polypropylene

Disconnect Switch and Electrical Whip with #10 AWG
No description available.

Disconnect Switch and Electrical Whip with #8 AWG
No description available.