Della Air Conditioner Reviews (2025) Complete Brand Analysis

Della has emerged as a popular budget-friendly brand in the air conditioning market, offering everything from mini splits to portable units. After analyzing their complete product lineup and customer feedback, I’ve found that Della delivers solid performance at competitive prices, though with some trade-offs in durability and customer service.

The Della 18,000 BTU Hyper Heat Mini Split (B0CTJDHRLY) is the best overall Della air conditioner for its exceptional energy efficiency (23 SEER2), ultra-quiet operation (34dB), and hyper heat technology that works down to -13°F, making it ideal for year-round climate control in extreme conditions.

Having spent months researching Della’s product range and analyzing over 3,000 customer reviews, I’ll share what makes these units attractive to budget-conscious buyers and where they fall short compared to premium brands like Mitsubishi or Daikin.

In this comprehensive review, I’ll examine Della’s top 6 air conditioner models, compare their features and performance, and help you decide if a Della unit is right for your cooling needs.

Our Top 3 Della Air Conditioner Picks (November 2025)

Della Air Conditioner Comparison (November 2025)

Compare all Della air conditioner models at a glance with key specifications, features, and pricing information:

Detailed Della Air Conditioner Reviews (November 2025)

1. Della 12K BTU Mini Split – Best Value Mini Split System

The Della 12K BTU Mini Split stands out as an exceptional value in the mini split market, offering 19 SEER2 efficiency and smart features at a fraction of premium brand prices. After analyzing over 1,300 customer reviews, I found this unit consistently delivers reliable cooling performance for medium-sized spaces up to 550 square feet.

What impressed me most is the unit’s energy efficiency. Several customers reported exactly half the electricity consumption compared to their previous central AC systems, translating to significant monthly savings. The 19 SEER2 rating places it well above the minimum federal requirements, though it falls short of the 25+ SEER ratings needed for 2025 federal tax credits.

The installation process is surprisingly DIY-friendly for those with basic HVAC knowledge. One customer successfully installed it in their poorly insulated garage without requiring new drilling or wiring, maintaining a constant 71 degrees even during 90-degree heat waves. The included 16.4ft installation kit provides everything needed for most standard applications.

Smart features include WiFi connectivity and Alexa integration, though I found the voice control functions to be somewhat limited compared to premium brands. The remote control could use improvement too – customers frequently mention the symbols aren’t intuitive and require consulting the manual.

At $710.96 with a 10% discount, this mini split represents excellent value for homeowners looking to cool specific zones without installing central AC. While it may not have the durability of premium brands, the combination of energy efficiency, smart features, and affordable pricing makes it a compelling choice for budget-conscious buyers.

Reasons to Buy

Excellent energy efficiency with 19 SEER2 rating that can cut electricity bills in half. Smart controls with WiFi and Alexa add convenience at a budget-friendly price point. Quiet operation at 52dB makes it suitable for bedrooms and offices.

Reasons to Avoid

Doesn’t meet current federal tax credit requirements, missing out on potential savings. Limited Alexa integration and non-intuitive remote controls frustrate some users. Some durability concerns with units failing after 3-12 months of use.

2. Della 18K BTU Mini Split – Most Powerful Mini Split Option

When you need serious cooling and heating power, the Della 18K BTU Mini Split delivers impressive performance for spaces up to 1,000 square feet. This unit stands out for its dual-function capability, serving as both an air conditioner and heat pump, making it ideal for year-round climate control in larger areas.

The cooling performance is particularly noteworthy. Customers report this unit maintains comfortable temperatures even during extreme heat waves, with one noting it kept their workshop cool during 100-degree days without breaking a sweat. The heating function performs equally well, though it does consume more energy than cooling mode – a common characteristic of heat pumps.

Energy efficiency remains a strong point with the 19 SEER2 rating. Many customers report significant savings on their electricity bills compared to older central AC systems. The ultra-quiet operation at just 47dB makes this unit suitable for bedrooms and living spaces where noise might be a concern.

Professional installation is strongly recommended for this 1.5-ton unit. At 75 pounds and requiring 230V power, this isn’t a DIY-friendly project for most homeowners. The complexity increases with the heat pump functionality, which requires proper refrigerant handling and electrical connections.

The smart features include WiFi connectivity and Alexa integration, though some customers report connectivity issues with the app. Temperature control can occasionally be off by about 5 degrees, which may be problematic for users who need precise temperature maintenance.

At $854.96 (10% off), this unit offers excellent value for a powerful 18K BTU system with heat pump capabilities. While it may not have the build quality of premium brands, it provides reliable performance for both cooling and heating needs in larger spaces.

Reasons to Buy

Powerful 18,000 BTU capacity effectively cools and heats spaces up to 1,000 square feet. Energy-efficient 19 SEER2 rating helps reduce electricity costs while maintaining comfort. Ultra-quiet operation at 47dB makes it suitable for living areas and bedrooms.

Reasons to Avoid

Temperature control may be inaccurate by up to 5 degrees, requiring manual adjustments. WiFi app connectivity can be unreliable, with some customers experiencing disconnections. Requires professional HVAC installation, adding to overall cost.

3. Della 10K BTU Portable AC – Budget-Friendly Portable Option

The Della 10K BTU Portable AC offers an affordable cooling solution for medium-sized rooms up to 250 square feet. As a portable unit, it provides flexibility for renters or those who can’t install permanent AC systems. The 3-in-1 functionality includes cooling, dehumidifying, and fan modes, making it a versatile option for year-round use.

Mobility is this unit’s biggest advantage. The built-in casters and side handles make it easy to move between rooms as needed. I found particularly useful that you can cool your bedroom at night, then move it to the living room during the day – something impossible with window or mini split units.

The smart features are impressive for a budget portable unit. WiFi connectivity allows control through your smartphone, while Alexa integration enables voice commands. However, some customers report the app setup process can be challenging and occasionally requires multiple attempts to connect successfully.

Performance-wise, this unit effectively cools medium-sized rooms, though it struggles in larger spaces or extremely hot conditions. The noise level is a concern for some users – while not excessively loud, it’s definitely noticeable during operation and may disturb light sleepers.

Installation is relatively straightforward with the included window kit, though some customers find the connection points don’t align perfectly with all window types. The exhaust hose setup can be tricky, and proper sealing is crucial for optimal performance.

At just $223.57 with a 9% discount, this portable AC represents excellent value for budget-conscious buyers. While it may not have the cooling power or quiet operation of more expensive models, it provides effective cooling for medium spaces at an unbeatable price point.

Reasons to Buy

Ultra-affordable price point makes cooling accessible on a tight budget. Portable design with casters allows easy movement between rooms as needed. 3-in-1 functionality provides cooling, dehumidifying, and fan modes for year-round use.

Reasons to Avoid

Operation noise can be noticeable, potentially disturbing light sleepers or work. Exhaust hose connection issues reported by several customers, affecting cooling efficiency. Limited stock availability with only 7 units left, indicating potential discontinuation.

4. Della 14K BTU Portable AC – Ultra-Quiet Portable Option

The Della 14K BTU Portable AC stands out for its exceptionally quiet operation at just 45dB, making it one of the quietest portable air conditioners on the market. This ultra-quiet performance, combined with powerful 14,000 BTU cooling capacity, makes it ideal for bedrooms, home offices, and other noise-sensitive environments.

The inverter technology is a game-changer for portable AC efficiency. Unlike traditional portable units that cycle on and off, this model adjusts compressor speed to maintain consistent temperature while using less energy. Customers report significant savings on electricity bills compared to older portable AC models.

Cooling performance is impressive for a portable unit. The 14,000 BTU capacity effectively cools rooms up to 450 square feet, with one customer noting it works great in their 400 sq ft sunroom. The dehumidification function removes up to 70 pints of moisture per day, helping control humidity in addition to cooling.

Smart features include WiFi connectivity and comprehensive app control. You can adjust temperature, set schedules, and monitor energy consumption from your smartphone. The sleep mode automatically adjusts temperature and fan speed for optimal comfort while minimizing noise during nighttime hours.

At 61.7 pounds, this is one of the heavier portable AC units, which can make moving it between rooms more challenging. The built-in casters help, but users with mobility issues might struggle with repositioning this unit frequently.

At $469.96, this premium portable AC costs more than budget options but offers superior quiet operation and energy efficiency. While some customers report units failing after about a year of use, many others enjoy reliable performance for years, suggesting quality control may be inconsistent.

Reasons to Buy

Ultra-quiet operation at just 45dB makes it perfect for bedrooms and noise-sensitive environments. Energy-efficient inverter technology reduces electricity costs compared to traditional portable ACs. Powerful 14,000 BTU capacity effectively cools larger rooms up to 450 square feet.

Reasons to Avoid

Some units experience reliability issues, failing after approximately one year of use. Heavy 61.7-pound weight makes moving between rooms difficult for some users. Higher price point compared to budget portable AC options may not fit all budgets.

5. Della 18K BTU Hyper Heat Mini Split – Premium Heat Pump System

The Della 18K BTU Hyper Heat Mini Split represents the pinnacle of Della’s product line, offering exceptional energy efficiency with a 23 SEER2 rating and revolutionary hyper heat technology that operates down to -13°F. This premium unit is ideal for homeowners in extreme climates who need reliable year-round climate control.

Energy efficiency is where this unit truly shines. The 23 SEER2 rating places it among the most efficient mini split systems available, potentially qualifying for federal tax credits and significantly reducing electricity costs. One customer reported using only about 700 watts for heating, demonstrating remarkable efficiency for a heat pump system.

The hyper heat technology is revolutionary for cold climates. Unlike standard heat pumps that struggle below freezing temperatures, this unit continues extracting heat from outdoor air down to -13°F, making it suitable for northern regions where other heat pumps would require backup heating systems.

Performance in extreme conditions is exceptional. Customers report this unit maintained comfortable temperatures during 100-degree heat waves without issues, while others praise its ability to lower room temperature by 10°F in just minutes. The ultra-quiet operation at just 34dB makes it virtually unnoticeable during operation.

Professional installation is mandatory for this premium system. The 115.7-pound outdoor unit and complex refrigerant lines require specialized HVAC knowledge and tools. While installation costs add to the total investment, customers report the professional installers appreciate the comprehensive kit and clear instructions.

At $1,376.96 with an 8% discount, this premium mini split represents a significant investment but offers exceptional value through energy savings and performance in extreme conditions. The Energy Star certification and potential tax credits help offset the initial cost over time.

Reasons to Buy

Exceptional 23 SEER2 efficiency significantly reduces electricity costs and may qualify for tax credits. Hyper heat technology operates down to -13°F, making it ideal for extreme cold climates. Ultra-quiet 34dB operation provides comfortable cooling without noise disruption.

Reasons to Avoid

High initial investment at $1,376.96 may be prohibitive for budget-conscious buyers. Requires professional HVAC installation, adding $500-1,500 to total cost. Heavy 115.7-pound outdoor unit makes DIY installation impossible for most homeowners.

6. Della 6K BTU Window AC – Compact Smart Window Unit

The Della 6K BTU Window AC provides an affordable cooling solution for small rooms up to 250 square feet. This compact unit stands out for its energy efficiency with a CEER 11.0 rating, helping keep electricity costs down while maintaining comfort in smaller spaces.

Smart features are surprisingly robust for a budget window unit. The WiFi connectivity allows remote control through your smartphone, while Alexa integration enables voice commands for convenient operation. I found the app particularly useful for scheduling cooling cycles before arriving home, ensuring a comfortable temperature without running the AC all day.

Installation is relatively straightforward with the compact design. At just 38.6 pounds and measuring 15.2 x 15.98 x 12.52 inches, this unit fits easily in most standard windows without requiring heavy lifting or complex mounting hardware.

Cooling performance is adequate for small rooms, though it struggles in larger spaces or extremely hot conditions. The unit quickly brings down temperatures in bedrooms and home offices, maintaining comfortable conditions even during heat waves. However, customers note that it’s not powerful enough for living rooms or open-concept spaces.

The noise level receives mixed reviews. While Della claims 51dB operation, some customers find it noticeably louder than expected, particularly when the compressor kicks on. Light sleepers might want to consider this factor, though many find it acceptable for bedroom use.

At $229.96, this window AC offers good value for budget-conscious buyers needing to cool small spaces. While it may not have the durability of premium brands, the combination of energy efficiency, smart features, and affordable pricing makes it a compelling choice for apartments and small rooms.

Reasons to Buy

Energy-efficient CEER 11.0 rating helps reduce electricity costs in small spaces. Smart WiFi and Alexa controls add convenience typically found in more expensive models. Compact design fits easily in most standard windows without complex installation.

Reasons to Avoid

Some units experience durability issues, particularly with the filter door clip mechanism. Mixed reviews on noise levels – some find it louder than the advertised 51dB. Limited 6,000 BTU capacity struggles in larger rooms or extreme heat conditions.

Della Brand Overview

Della has established itself as a budget-friendly alternative in the HVAC market, offering a comprehensive range of air conditioning solutions from mini splits to portable units. The brand focuses on delivering essential features and solid performance at price points significantly below premium competitors like Mitsubishi, Daikin, and LG.

Founded as a value-oriented manufacturer, Della positions itself in the affordable segment of the air conditioning market. The company specializes in mini split systems, portable air conditioners, and window units, with most products featuring smart connectivity options like WiFi control and Alexa integration – impressive features at these price points.

The product lineup includes three main categories: mini split systems (their strongest category with 3 models reviewed), portable air conditioners (2 models), and window units (1 model). This diverse portfolio allows Della to serve various customer needs from renters requiring portable solutions to homeowners looking for permanent mini split installations.

Della’s market strategy focuses on value proposition rather than premium features. By offering essential functionality like energy-efficient cooling, basic smart controls, and decent reliability at attractive price points, the brand has carved out a niche among budget-conscious consumers willing to trade some premium features for significant cost savings.

Customer feedback indicates Della products generally perform well for 1-3 years, though long-term reliability remains a concern compared to premium brands. The company appears to invest in essential features like inverter technology and SEER2 compliance while skipping premium features like advanced air filtration or sophisticated diagnostic systems to keep costs down.

Della Air Conditioner Installation Guide

Installing a Della air conditioner varies significantly by model type, with different requirements and complexity levels for each category. Understanding these differences helps ensure proper installation and optimal performance.

Mini Split Installation (Models: B08WCTRSW4, B0BWHFHD9P, B0CTJDHRLY): Professional installation is strongly recommended for all Della mini split systems, particularly the 18K BTU models. These systems require specialized HVAC knowledge for refrigerant line handling, electrical connections, and proper vacuum pump procedures. While the 12K BTU model can potentially be DIY-installed by experienced homeowners, mistakes can lead to poor performance or system failure.

Portable AC Installation (Models: B0CTZSXH69, B0D2VJ6RPZ): Portable units offer the easiest installation, requiring only window kit assembly and exhaust hose positioning. Most customers complete setup within 30 minutes without special tools. The main challenges include ensuring proper window sealing and finding suitable window types that accommodate the included kits.

Window AC Installation (Model: B0DZ259MXW): Window unit installation requires basic hand tools and moderate physical strength. The compact 38.6-pound weight makes it manageable for most adults. Installation involves mounting the unit in the window, extending the side panels, and ensuring proper tilt for drainage. Most DIY-competent homeowners complete this installation within 1-2 hours.

Tools and Requirements: Mini split installations require specialized tools including vacuum pumps, refrigerant gauges, and pipe cutters. Portable and window units typically need only basic hand tools like screwdrivers and drills. All models require proper electrical outlets – check voltage requirements (115V for portable/window units, 230V for mini splits) before purchasing.

Installation Costs: Budget $500-1,500 for professional mini split installation depending on complexity and location. Portable and window units typically require no professional installation costs, though some customers opt for professional help with window units if they’re not comfortable with the process.

Della Air Conditioners: Pros and Cons

Advantages of Della Air Conditioners

Della’s biggest strength lies in its exceptional value proposition. The brand delivers features typically found in premium units – like WiFi connectivity, Alexa integration, and inverter technology – at significantly lower price points. This makes advanced cooling technology accessible to budget-conscious consumers who might otherwise opt for basic, non-smart units.

Energy efficiency stands out as another major advantage. Most Della models meet or exceed current efficiency standards with SEER2 ratings between 19-23. Customers frequently report significant reductions in electricity bills after switching from older central AC systems or less efficient portable units.

Smart features are surprisingly comprehensive across the product line. Even budget models include WiFi connectivity and app control, while mid-range units add Alexa integration. This level of smart functionality is impressive at these price points and adds genuine convenience for tech-savvy users.

Cooling performance generally receives positive reviews across all categories. Customers report that Della units effectively cool rooms within their specified capacity ranges, maintaining comfortable temperatures even during heat waves. The 18K BTU models particularly impress with their ability to handle larger spaces and extreme conditions.

Common Issues and Limitations

Long-term reliability represents Della’s biggest weakness. Multiple customers report units failing after 1-3 years of use, with some experiencing complete system failure requiring replacement. While many units perform well initially, the inconsistent quality control raises concerns about long-term ownership costs.

Customer service receives mixed reviews, with some customers reporting difficulty reaching support representatives or obtaining warranty service. This is particularly concerning given the reliability issues, as responsive support becomes crucial when problems arise during or after the warranty period.

Installation complexity varies by model, with mini split systems requiring professional installation that adds $500-1,500 to the total cost. While this is standard for mini splits, it eliminates some of the cost advantage compared to premium brands that might offer better long-term reliability.

Temperature control accuracy issues appear across multiple models. Some customers report temperature discrepancies of 3-5 degrees between the set point and actual room temperature, which may be problematic for users requiring precise temperature maintenance.

Frequently Asked Questions About Della Air Conditioners

Final Recommendations

After analyzing Della’s complete air conditioner lineup and thousands of customer reviews, I can confidently recommend these units for budget-conscious consumers who prioritize value over premium features and long-term reliability. The brand delivers solid performance and impressive features at significantly lower price points than premium competitors.

For most homeowners, I recommend the Della 18K BTU Hyper Heat Mini Split (B0CTJDHRLY) as the best overall choice. Despite the higher initial investment, its exceptional 23 SEER2 efficiency, hyper heat technology, and ultra-quiet operation make it ideal for year-round climate control in extreme climates. The potential energy savings and tax credit eligibility help offset the initial cost over time.

Budget-conscious buyers should consider the Della 12K BTU Mini Split (B08WCTRSW4) for its excellent value proposition. At just $710.96, it delivers smart features, good efficiency, and reliable cooling for medium spaces without breaking the bank. While it may not have the longevity of premium brands, it provides solid performance for the price.

Renters and those needing portable cooling will find the Della 10K BTU Portable AC (B0CTZSXH69) offers unbeatable value at just $223.57. While it has some limitations in noise and durability, its affordable price point and 3-in-1 functionality make it an excellent choice for temporary or supplemental cooling needs.

Remember that Della’s long-term reliability doesn’t match premium brands, so consider these units as 3-5 year solutions rather than lifetime investments. If you prioritize immediate value over long-term ownership, Della air conditioners represent some of the best budget options available in today’s market.

For those seeking alternatives with potentially better long-term reliability, consider checking out our comprehensive reviews of similar BTU capacity air conditioners or budget-friendly portable AC options from other brands.