The Best 1HVAC Mini Splits in 2026: 3 Picks

Quick picks

Our 3 picks

1 Best overall

1HVAC 2.5 Ton 14.5 SEER2 Heat Pump

Best for: replacing older central air condenser units

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 2.5 Ton heat pump delivers 14.5 SEER2 cooling efficiency with a 10kW backup heater. It includes a 30-foot installation kit, an ECM blower motor, and a factory-installed TXV. The unit is AHRI Certified and ETL Listed for safety. You get a complete system ready for year-round comfort. It suits homeowners replacing older GSZ140301 models who need a reliable, certified central air solution with included hardware.

Pros

• Includes a 30-foot installation kit with line set and disconnect switch
• Features an ECM blower motor for efficient air handling
• AHRI Certified and ETL Listed for safety and performance
• Offers 10-year parts warranty when registered online

Cons

• Lower 14.5 SEER2 rating compared to 15.2 SEER2 options
• Includes a non-programmable thermostat only
• No smart app control or remote listed in specifications

Good fit if

• You need a certified heat pump with a 30-foot line set
• You are replacing an older GSZ140301 condenser unit
• You want a complete system with backup heat included

Skip if

• You require a higher 15.2 SEER2 efficiency rating
• You need a programmable or smart thermostat included
• You are looking for a smaller 9000 BTU unit

Verdict: 1HVAC 2.5 Ton 14.5 SEER2 Heat Pump is a solid choice for homeowners replacing older central air systems who value certified efficiency and a complete installation kit over the highest possible SEER rating.

2 Best budget

1HVAC Mitsubishi 9000 BTU GX-Series

Best for: small room efficiency and smart control

Cooling Capacity

9000 BTU

Efficiency Rating

28.4 SEER2

Coverage Area

350-450 sq ft

Number of Zones

Single Zone

Heat Pump

Heat Pump

Smart Connectivity

Built-In WiFi

View on Amazon: 1HVAC Mitsubishi 9000 BTU GX-Series Affiliate link

This 9,000 BTU single-zone mini split targets rooms between 350 and 450 square feet. It features a 28.4 SEER2 efficiency rating and operates as a heat pump. The unit includes built-in Wi-Fi for app control and comes with a 15-foot line set. It fits well in small spaces like bedrooms or dens. Professional installation is required for proper setup.

Pros

• 28.4 SEER2 efficiency rating
• Built-in Wi-Fi connectivity
• Factory pre-charged for 25 feet
• 10-year manufacturer warranty

Cons

• Only covers up to 450 square feet
• Requires professional installation
• Single zone capacity only

Good fit if

• You need efficient cooling for a small room
• You want smart app control via Wi-Fi
• You prefer a heat pump system

Skip if

• You need to cool a large open area
• You want a DIY installation option
• You require multi-zone capability

Verdict: 1HVAC Mitsubishi 9k BTU GX-Series offers high efficiency for small spaces. It suits you if you need precise control for a single room.

3 Best premium

1HVAC 5 Ton 13.8 SEER2 Central AC

Best for: Large spaces needing 5-ton capacity

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 5-ton central air conditioner offers 13.8 SEER2 efficiency for large spaces. It includes a 24.5-inch vertical evaporator coil with an integrated TXV kit for optimized performance. The system comes with a programmable digital thermostat and an R32 leak detection board for older furnaces. It is AHRI certified and ETL listed for safety. This unit suits buyers needing high capacity and factory-installed components for reliable operation.

Pros

• 5-ton cooling capacity for large areas
• 13.8 SEER2 efficiency rating
• Includes programmable digital thermostat
• Factory-integrated TXV kit in coil
• R32 leak detection board included

Cons

• Lower 13.8 SEER2 rating compared to competitors
• Bulky 35.5-inch width and 39.5-inch height
• Requires separate installation kit purchase

Good fit if

• You need 5-ton capacity for a large home
• You want a vertical coil configuration
• You need an R32 leak detection board for older systems

Skip if

• You require higher than 13.8 SEER2 efficiency
• You have limited space for a 35.5-inch wide unit
• You want a smaller 2.5-ton or 9000 BTU system

Verdict: 1HVAC 5 Ton 13.8 SEER2 Vertical Coil is a solid choice for large homes needing high capacity and included safety components. It fits buyers prioritizing capacity and factory-integrated features over peak efficiency.

Specifications side by side

The 1HVAC Lineup at a Glance

This guide compares 3 1HVAC models based on their published specifications. The lineup includes high-capacity central condenser units and compact wall-mounted indoor heads. You can choose based on your home’s size and efficiency needs. Each model offers distinct features for different installation scenarios. The top pick is the 1HVAC 2.5 Ton 14.5 SEER2 Heat Pump, which suits homeowners replacing older central air systems. It includes a complete installation kit and values certified efficiency. For small rooms, the 1HVAC Mitsubishi 9000 BTU GX-Series offers smart Wi-Fi control. The 1HVAC 5 Ton 13.8 SEER2 Central AC provides vertical coil capacity for large spaces.

1HVAC Range: Small to Large Options

The 1HVAC range spans from compact 9,000 BTU wall-mounted units to massive 5-ton central condenser coils. You have options for single-room precision or whole-home capacity. The smallest unit measures 31.4 inches wide, while the largest central coil reaches 35.5 inches. You will find high-efficiency heat pumps and standard air conditioners. However, the lineup lacks mid-size options. There are no 1.5-ton or 2-ton models listed. You also will not find ductless heads paired with outdoor condensers in this specific set. The range is split between very small and very large applications.

How to Choose the Right Mini Split

1. Match Capacity to Space

   Select a unit sized for your specific cooling load. The 1HVAC 5 Ton 13.8 SEER2 Central AC serves large homes needing high capacity. Its vertical coil design fits substantial spaces. For smaller areas, the 9000 BTU GX-Series provides precise control. Oversizing wastes energy. Undersizing fails to cool effectively. Check the BTU or tonnage against your square footage. The lineup spans from compact indoor heads to massive central condenser coils. Choose the capacity that matches your home’s size.

2. Check Efficiency Ratings

   Look at the SEER2 rating to understand certified efficiency. Higher numbers indicate better energy performance over time. The 2.5 Ton 14.5 SEER2 Heat Pump offers solid efficiency for replacing older central air systems. The 5 Ton model provides 13.8 SEER2 for large spaces. You can choose based on your home’s size and efficiency needs. Higher efficiency reduces operating costs. Compare these ratings across the 3 models. Prioritize units with higher SEER2 values if you plan to run the system frequently.

3. Review Physical Dimensions

   Measure your installation space before buying. The 2.5 Ton unit measures 29 inches wide and 39.5 inches tall. The 5 Ton vertical coil is wider at 35.5 inches. The 9000 BTU indoor head is 31.4 inches wide but much shorter at 11.8 inches. Ensure your wall or outdoor pad fits the unit. The smallest unit measures 31.4 inches wide, while the largest central coil reaches 35.5 inches. Check the width, height, and length specs. Proper fit ensures safe and professional installation.

4. Consider Smart Features

   Determine if you need remote control capabilities. The 9000 BTU GX-Series includes Wi-Fi smart control. This allows you to adjust settings from your phone. It suits you if you need precise control for a single room. Other models may not list this feature. If you want convenience, check the attributes for smart control. Wi-Fi connectivity adds flexibility to your daily routine. It helps manage temperature without getting up. Verify this spec if remote access is important to you.

5. Identify System Type

   Decide between a heat pump or central AC coil. The 2.5 Ton model is a heat pump, offering both heating and cooling. This is ideal for replacing older central air systems. The 5 Ton unit is a central AC, focusing on cooling capacity. The 9000 BTU unit is a wall-mounted indoor head. You have options for single-room precision or whole-home capacity. Choose the type that matches your current HVAC setup. Heat pumps provide year-round comfort. Central coils work with existing furnaces.

Frequently asked questions

See also

• best 1HVAC mini splits under 4000
• 1hvac 2 5 ton 14 5 seer2 vs 5 ton 13 8 seer2
• best 120V mini split air conditioners
• mysa smart thermostat mini split heat review