Airspool vs. EG4 Solar Hybrid Mini-Splits: How Do They Compare [2026 Update]

The Simple Version

EG4 uses Mr. Cool-style valves where the refrigerant lines require two wrenches across eight connection points. EG4 also does not pre-wire the communication control wires, does not include the power cord, and does not include the same solar-ready accessories like solar wire, solar isolator, and solar whips.

Airspool's system is designed to save time and frustration.

Once the indoor unit is on the wall and the line set is passed through, Airspool's Quick ’n’ Easy^TM system allows the indoor and outdoor units to be connected in about five minutes. For a non-experienced installer, this can save around five hours. For an experienced installer, it can still save around two and a half hours.

Airspool also pre-installs and tests the system on solar, grid, and hybrid operation before shipping to help catch out-of-the-box defects before the customer ever receives the product.

And because air conditioning is what Airspool does, Airspool is better positioned to help customers troubleshoot when something goes wrong during installation or operation.

What Is Different About Airspool?

1. Airspool turns the base Deye unit into a more complete system

Both Airspool and EG4 start with the same Deye solar hybrid mini-split technology. The difference is what happens next. Airspool adds the practical installation work and accessories that make the system easier for real customers to install and use.

Airspool includes:

• Pre-wired power cord
• Pre-wired communication control wires
• Twist-to-connect communication wiring
• Twist-to-connect truly pre-charged refrigerant line set
• Pre-connected solar whips
• Solar wire
• Solar isolator
• Installation extras
• Pre-shipment testing on solar, grid, and hybrid operation

This turns the product from "a solar mini-split you need to set up" into a much more complete solar air conditioning system.

2. Airspool's Quick ’n’ Easy^TM installation method saves real time

Airspool has developed a patent-pending installation method called Quick ’n’ Easy^TM.

This does not mean the entire installation takes five minutes. Customers still need to measure, mount the indoor unit, create the wall opening, feed the line set, route the condensate hose, and handle the normal installation work.

But once the indoor unit is on the wall, Airspool's system allows the indoor and outdoor units to be connected in around five minutes. That is where the time savings happen.

Estimated install time savings:

• Around 5 hours saved for a non-experienced installer
• Around 2.5 hours saved for an experienced installer

The reason is simple: Airspool removes much of the wrench work, wiring work, refrigerant-line complexity, and solar accessory setup that would otherwise be part of the install.

3. EG4 requires more manual installation work

EG4's system uses Mr. Cool-style valves that require two wrenches across eight refrigerant connection points.

EG4 also does not pre-wire the communication control wires, does not include the power cord, and does not provide the same ready-to-go solar wiring setup.

That means the installer has more to do, more to figure out, and more chances to make a mistake.

For experienced installers, this may be manageable. For homeowners or first-time installers, it can add meaningful friction.

4. Airspool tests the system before shipping

Airspool does additional work in Las Vegas before the unit ships.

Each system is pre-installed and tested on:

• Solar power
• Grid power
• Hybrid solar/grid operation

This helps confirm that the unit is working properly before it reaches the customer.

That matters because out-of-the-box issues are especially frustrating with HVAC equipment. The customer has usually planned the install, opened walls, coordinated labor, and expected the system to work when it arrives.

Airspool's pre-shipment testing reduces the chance that the customer discovers a defect only after beginning the installation.

5. Airspool includes the solar components customers actually need

Airspool includes important solar-side accessories that are not typically included with EG4.

Airspool provides:

• Solar wire
• Solar isolator
• Pre-connected solar whips

This matters because the product is a solar hybrid air conditioner. Customers should not have to guess which solar accessories they still need to source separately.

With Airspool, the customer can add approximately 1,500 watts of solar panels and be much closer to a complete working solar air conditioning setup.

6. Airspool provides stronger customer protection

Airspool offers a 5-year protection structure:

1. Year 1: Buy-and-try guarantee. Customers can return the unit in the first year if they are not happy and get their money back.
2. Years 2-5: Functionality guarantee. Airspool remains responsible for making sure the unit keeps working properly.

This is different from a basic parts warranty. The point is not simply to send replacement parts. The point is to make sure the customer is successful with the system.

Airspool can do this more confidently because the indoor and outdoor halves of the system are twist-to-connect. In a worst-case scenario, Airspool can send a replacement half of the system without requiring the customer to rebuild everything from scratch.

7. Airspool is an air conditioning company first

Airspool is focused on air conditioning. That matters when something goes wrong.

Solar hybrid HVAC sits at the intersection of air conditioning, electrical work, solar power, and installation technique. When customers run into problems, they need support from people who understand HVAC systems, not just solar hardware distribution.

Airspool is more likely to know how to diagnose and solve installation or operation issues because air conditioning is the core business.

Comparison Table

Why Airspool Costs More

Airspool is not just putting a different label on the same unit.

Both systems begin with the same Deye solar hybrid mini-split technology, but Airspool adds the pieces that make the system easier and safer to install:

• We pre-wire the power cord
• We pre-wire the communication control wires
• We include the solar wire
• We include the solar isolator
• We include pre-connected solar whips
• We use a twist-to-connect refrigerant line set
• We test the system on solar, grid, and hybrid operation before shipping
• We back it with a 1-year buy-and-try guarantee and 4 more years of functionality protection
• We support it as air conditioning specialists

So yes, Airspool usually costs more. But for most customers, the value is in what they do not have to do, source, troubleshoot, or worry about.