3 Best 1HVAC Mini Splits Under $4000, Compared

Quick picks

The best fit for you

• You need a complete system with backup heat 1HVAC 2.5 Ton 14.5 SEER2 Heat Pump It includes a 30-foot install kit and is a 14.5 SEER2 heat pump.
• You want the most compact indoor unit 1HVAC Mitsubishi 15k BTU GX-Series Its 11.8-inch height is the smallest vertical dimension among the listed options.
• You require 5-ton capacity for large spaces 1HVAC 5 Ton 13.8 SEER2 Central AC This vertical coil system provides the highest tonnage and cooling capacity on the list.

Our 3 picks

1 Best overall

1HVAC 2.5 Ton 14.5 SEER2 Heat Pump

Best for: complete systems with backup heat

Cooling Capacity

2.5 Ton

Efficiency Rating

14.5 SEER2

Heat Pump

Heat Pump

Dimensions

29 × 29 × 39.5 inches

View on Amazon: 1HVAC 2.5 Ton 14.5 SEER2 Heat Pump Affiliate link

This 1HVAC unit is a 2.5-ton heat pump system with a 14.5 SEER2 rating. It includes a 30-foot installation kit and 10kW backup heat. The air handler features an ECM motor and factory TXV. It is AHRI certified and ETL listed. This system suits you if you need a complete central air solution with reliable heating and cooling performance for medium-sized spaces.

Pros

• Includes 30-foot line set and installation hardware
• 10kW electric backup heat kit included
• ECM blower motor for efficient air handling
• AHRI certified and ETL listed for safety

Cons

• 14.5 SEER2 is lower than premium 22+ SEER2 models
• Non-programmable thermostat included
• No smart home app or remote control listed

Good fit if

• You need a full installation kit with line set
• You want included electric backup heat
• You prefer a certified AHRI system

Skip if

• You require high-efficiency ratings above 20 SEER2
• You need smart app control features
• You want a programmable thermostat included

Verdict: 1HVAC 2.5 Ton 14.5 SEER2 Heat Pump is a solid choice for homeowners who want a complete, certified system with backup heat. It fits buyers who prioritize included hardware and reliable performance over maximum energy efficiency or smart features.

2 Best budget

1HVAC Mitsubishi 15k BTU GX-Series

Best for: single-room efficiency

Cooling Capacity

15000 BTU

Efficiency Rating

22.2 SEER2

Coverage Area

550-800 sq ft

Number of Zones

Single Zone

Heat Pump

Heat Pump

Smart Connectivity

Built-In WiFi

View on Amazon: 1HVAC Mitsubishi 15k BTU GX-Series Affiliate link

This 15000 BTU heat pump from 1HVAC targets rooms between 550 and 800 square feet. It achieves a high 22.2 SEER2 efficiency rating, making it a strong candidate for budget-conscious buyers seeking performance. The unit includes built-in Wi-Fi for app control and comes with a wireless remote. It is pre-charged for up to 25 feet of line set and requires professional installation.

Pros

• 22.2 SEER2 efficiency rating
• Built-in Wi-Fi connectivity
• Includes wireless remote control
• Pre-charged for 25 ft line set

Cons

• Single zone capacity limits multi-room use
• Requires professional installation
• Heavier build at 119 pounds

Good fit if

• You need efficient cooling for a single medium room
• You want smart app control without extra hardware
• You are upgrading an older, less efficient unit

Skip if

• You require heating below -5°F
• You need to cool a space larger than 800 sq ft
• You prefer a DIY installation process

Verdict: 1HVAC 15000 BTU GX-Series Mini Split offers top-tier efficiency for its price tier, making it the best budget pick for single-room comfort.

3 Best premium

1HVAC 5 Ton 13.8 SEER2 Central AC

Best for: large spaces needing 5-ton central cooling

Cooling Capacity

5 Ton

Efficiency Rating

13.8 SEER2

Dimensions

35.5 × 35.5 × 39.5 inches

View on Amazon: 1HVAC 5 Ton 13.8 SEER2 Central AC Affiliate link

This 1HVAC package provides 5 tons of cooling with a 13.8 SEER2 rating. It includes a vertical evaporator coil and a programmable thermostat. The system uses R32 refrigerant and comes with a Dragonfly board for older furnaces. It is built with copper tubes and aluminum fins. This setup suits large homes needing central air capacity without a full split system.

Pros

• 5 Ton cooling capacity for large spaces
• Includes programmable digital thermostat with LCD screen
• AHRI Certified and ETL Listed for safety
• Includes R32 Dragonfly board for older furnaces

Cons

• 13.8 SEER2 is lower efficiency than competitors
• No smart app or Wi-Fi connectivity listed
• Requires professional installation of 5-ton system

Good fit if

• You need 5 tons of cooling capacity
• You have an older furnace needing an R32 board
• You want a vertical coil configuration

Skip if

• You need high-efficiency ratings above 15 SEER2
• You prefer a standard 2.5-ton system
• You want smart home integration features

Verdict: 1HVAC 5 Ton Vertical Coil System offers raw capacity and necessary hardware for large spaces. It fits buyers who need a complete central air package with an R32 adapter for older systems.

Specifications side by side

How to Choose the Right Mini Split

1. Match BTU to Room Size

   Select capacity based on your square footage. The 15,000 BTU GX-Series is designed for single-room efficiency, making it ideal for smaller spaces. Larger areas require more power. The 5 Ton unit provides the necessary cooling for expansive zones. Choosing the wrong size leads to poor performance. Ensure the BTU rating aligns with your room dimensions for optimal comfort and energy use.

2. Check SEER2 Efficiency Ratings

   Higher SEER2 ratings indicate better energy efficiency. The 2.5 Ton model features a 14.5 SEER2 rating, offering reliable performance for whole-home needs. Higher efficiency reduces long-term electricity costs. Compare these numbers across models to find the most economical option. The 5 Ton system has a 13.8 SEER2 rating, which suits large spaces. Prioritize higher ratings if energy savings are your main goal.

3. Verify Included Install Kit Length

   The distance between indoor and outdoor units matters. The 2.5 Ton system includes a 30-foot install kit, which covers most standard home layouts. Longer runs may require additional tubing or adapters. Check the kit specifications before purchasing. This ensures you have all necessary hardware for a proper setup. Avoid unexpected costs by confirming the included length matches your installation requirements.

4. Confirm Smart Control Compatibility

   Remote management adds convenience to your system. The 15,000 BTU GX-Series supports Wi-Fi smart control, allowing you to adjust settings from your phone. This feature is useful for scheduling and monitoring usage. Verify if your chosen model includes this capability. Smart controls enhance usability without compromising cooling performance. Ensure your home network supports the required connection for seamless operation.

5. Assess Physical Dimensions for Fit

   Measure your wall space before buying. The 15,000 BTU unit is 11.8 inches high, making it compact for wall mounting. The 2.5 Ton model is wider at 29 inches. The 5 Ton unit is the largest at 35.5 inches wide. Ensure the indoor and outdoor units fit your available space. Proper sizing prevents installation issues and maintains aesthetic appeal in your home.

Frequently asked questions

See also

• 1hvac 2 5 ton 14 5 seer2 vs 5 ton 13 8 seer2
• 1hvac 2 5 ton 14 5 seer2 review
• best mini PCs under 4000
• best mini PCs under 4000