Last updated on May 26th, 2025 at 04:16 pm
Before discussing about Best Energy Efficient 1.5 Ton window AC, let us understand why window ACs are still popular. The portability of window ACs has kept them popular among various groups of people. People who frequently change their homes prefer window ACs. They need minimal installation work and can be used as plug-and-play machines. Being all component assembled in single unit, loss of refrigerant can be avoided during shifting. There are also no of energy efficient windows AC’s available in market. These machines have lower energy efficiency than split ACs. However, they provide a lower cost of ownership if the user frequently moves. For detailed comparison of split and windows ac please click here
Let us discuss about the Best Energy Efficient 1.5 Ton window AC in 2025 :
- Haier 1.5 Ton 5 Star Twin Inverter Side Flow Window AC (Copper, Turbo Mode, Anti Bacterial Filter, Cools at 54°C Temp, Long Air Throw – HWU18I-AOW5BN-INV,White). ISEER -3.55, Annual unit consumption: 1103 Units. Approx price 35500,
The Haier 1.5 Ton 5 Star Twin Inverter Window AC (HWU18I-AOW5BN-INV, White) offers powerful and energy-efficient cooling, ideal for medium-sized rooms (111–150 sq. ft). With a high-performance Twin Inverter Compressor and 100% grooved copper coils, it delivers fast cooling even at extreme temperatures up to 54°C. This 5-star rated AC features Turbo Mode, long air throw, and an advanced Super Micro Anti-Bacterial Filter for clean, healthy air. Its durable design includes an anti-corrosive coating and Hyper PCB with flame-resistant materials, ensuring longevity and reliability. With 1204 kWh annual energy consumption and an ISEER of 3.9, it strikes the perfect balance between performance and savings.
✅ Pros
✅ Efficient Cooling in Extreme Heat – Performs optimally at up to 54°C
✅ High Energy Efficiency – 5-star rating ensures lower electricity bills
✅ Advanced Twin Inverter Technology – Quieter operation and faster cooling
✅ Healthy Air Quality – Anti-bacterial filter helps reduce airborne pollutants
✅ Durable Construction – Grooved copper coil and anti-corrosion features extend lifespan
✅ Turbo Mode & Long Air Throw – Ensures quick and widespread cooling
✅ Free Delivery + No Cost EMI Options
❌ Cons
- ❌ Paid Installation
❌ Bulky Design – Weighs 44 kg and may not suit all window setups
❌ Basic Aesthetics – Functional design may not appeal to style-focused buyers
❌ Limited Smart Features – No Wi-Fi or app connectivity
- 2. Blue Star 1.5 Ton 5 Star Inverter Window AC (Copper, Turbo Cool, Fan Modes-Auto/High/Medium/Low, Hydrophilic Blue Fins, Dust Filters, Self-Diagnosis, 2024 Model, WID518L, White) ,ISEER -3.51, Annual unit consumption: 1104 Units. Approx price 39500,
The Blue Star WID518L is a high-efficiency 1.5 Ton 5-Star Inverter Window AC, engineered for medium-sized rooms (111–150 sq. ft). With an ISEER of 3.51, it delivers exceptional energy savings, using only 1104.23 units per year. Equipped with a rotary inverter compressor, Turbo Cool mode, humidity control, and 2D air swing, this AC ensures fast and uniform cooling even in high ambient temperatures up to 52°C. The hydrophilic blue fins protect against corrosion, while features like Comfort Sleep, dust filters, and self-diagnosis add convenience. It also comes with an impressive 80-month compressor warranty and uses R32 refrigerant, which is eco-friendly with zero ozone depletion potential.
✅ Pros
- Inverter Technology: Energy-efficient, adjusts cooling based on room temperature.
- 5-Star BEE Rating: Low energy consumption (only 1104 units/year).
- Turbo Cooling & 2D Swing: Fast, uniform cooling even at high ambient temperatures (up to 52°C).
- Hydrophilic Blue Fins: Resist corrosion, improving long-term durability.
- Long Warranty: 80-month (6.6 years) compressor warranty – above industry average.
- Multiple Modes: Auto, Cool, Fan, Dry, and Comfort Sleep for customized cooling.
- Eco-Friendly Refrigerant: Uses R32 gas with zero ozone depletion.
- Compact Dimensions & Lightweight: Easier to install compared to many competitors.
❌ Cons
- Moderate Noise Level: 56 dB may be noticeable in quiet environments.
- Higher Initial Price: Slightly more expensive than non-inverter counterparts.
- Paid Installation
3. Voltas 1.5 Ton 3 Star, Turbo Mode Window AC (Copper Condenser, Anti-Rust Coating, Anti-Freeze Thermostat, WAC 183 Vectra pearl Window Fixed sp, White),ISEER -3.1, Annual unit consumption: 1186 Units. Approx price 29000,
The Voltas WAC 183 Vectra Pearl is a 1.5 Ton 3-Star Fixed Speed Window AC that offers reliable performance for medium-sized rooms (111–150 sq ft). Backed by a copper condenser, Turbo Cooling, and Anti-Rust Coating, this model ensures fast and durable cooling, even in high ambient temperatures of up to 48°C. With an ISEER rating of 3.10 and annual energy consumption of 1185.93 units, it balances energy efficiency and affordability. It includes multiple features like Auto Swing, Sleep Mode, Anti-Freeze Thermostat, Self-Diagnosis, and Dust Filter, and supports stabilizer-free operation. It uses eco-friendly R32 refrigerant and comes with a 1-year comprehensive warranty and 5 years on the compressor.
✅ Pros
- Turbo Mode + 4750W Capacity: Delivers powerful cooling ideal for Indian summers.
- 100% Copper Condenser: Ensures efficient heat exchange, longer life, and less maintenance.
- Stabilizer-Free Operation: Works reliably within a 230V range, avoiding external stabilizer cost.
- Multiple Comfort Features: Timer, Sleep Mode, Anti-Rust Coating, LED Display, and Auto Swing.
- Eco-Friendly Refrigerant: Uses R32 with low global warming potential.
- Value for Money:
❌ Cons
- Fixed Speed Compressor: Less energy-efficient compared to inverter models.
- 3-Star Rating: Higher power consumption than 4-star or 5-star variants.
- Noise Level: Operates at around 56 dB, which may be noticeable in quiet environments.
- Installation Charge Extra
- 4. Panasonic 1.5 Ton 4 Star Fixed Speed Window AC (Powerful Mode, Copper Condenser, PM 0.1 Filter, CW-XN184BM, White), ISEER -3.34, Annual unit consumption: 1169 Units. Approx price 33000,
The Panasonic CW-XN184BM is a 1.5 Ton 4-Star Fixed Speed Window AC designed for medium-sized rooms (120–170 sq ft). Equipped with Powerful Mode, 100% Copper Condenser, and a PM 0.1 Filter, it ensures rapid cooling and cleaner air. With an ISEER of 3.34, this AC balances energy efficiency and performance. It uses eco-friendly R32 refrigerant, supports ambient cooling up to 48°C, and features a durable build with a noise level of around 56 dB. Backed by Panasonic’s trusted quality, this unit includes a 1-year comprehensive warranty and 4 years on the compressor.
✅ Pros
- Efficient Cooling: Powerful mode with 5050W capacity for quick cooling in high temperatures (up to 48°C).
- 4-Star Energy Rating: Consumes less electricity (Annual: ~1169 units), saving on bills.
- PM 0.1 Filter: Filters ultra-fine particles for healthier indoor air.
- Copper Condenser Coil: Enhances heat exchange, offers better cooling, and low maintenance.
- Environment-Friendly Refrigerant: R32 gas with zero ozone depletion potential.
- Affordable Pricing
- Free Delivery + Easy Installation Option
❌ Cons
- Fixed Speed Compressor: Lacks inverter technology, so may consume more power compared to inverter ACs.
- Slightly Noisy: Noise levels at 56–57 dB may be noticeable, especially at night.
- Window AC Design: Requires a window slot; not suitable for wall-mounted installations.
- Paid Installation
5. Carrier 1.5 Ton 3 Star Window AC (Copper, Estrella Dx, White) ISEER -3.21, Annual unit consumption: 1206 Units. Approx price 33000,
The Carrier Estrella Dx 1.5 Ton 3-Star Window AC is a robust cooling solution ideal for medium-sized rooms (up to 150 sq. ft). Backed by a rotary compressor, this unit offers a cooling capacity of 5100W, delivering fast and consistent performance even in high ambient conditions. It features a 100% copper condenser for better heat exchange and long-lasting durability, along with user-friendly modes like Turbo, Sleep, Auto Restart, Timer, and Dehumidifier. This model uses R32 refrigerant, making it more eco-friendly with zero ozone depletion potential. The AC supports 3 fan speeds, 2-way air swing, and comes with a 1-year product warranty and 5 years on the compressor.
✅ Pros
- High Cooling Capacity: At 5100W, it ensures quick cooling, even in extreme temperatures.
- Copper Condenser: Offers better efficiency, lower maintenance, and longer lifespan.
- Multiple Comfort Modes: Turbo Mode, Sleep Mode, Dehumidifier, and Auto Restart enhance user experience.
- Energy Efficient Rotary Compressor: Delivers consistent performance with improved efficiency.
- Eco-Friendly Refrigerant: Uses R32 gas, reducing environmental impact.
- Smart Features: Exhaust command, temperature display, timer, auto fan speed and swing.
- Strong Build & Brand Trust: Backed by Carrier’s global reputation and quality assurance.
❌ Cons
- 3-Star Energy Rating: Consumes more power compared to 4- or 5-star models.
- No Inverter Technology: Fixed speed compressor may lead to higher electricity usage.
- Moderate Noise Levels: Noise data not listed clearly, but rotary window ACs typically produce noticeable sound.
- Paid Installation
