10 Things to Check Before Buying an AC

Buying an air conditioner in Bangladesh is not just about cooling your room, it’s about making a smart investment for long-term comfort and cost savings. With rising temperatures and increasing electricity costs in Bangladesh, choosing the right AC has become more important than ever. Many of us make the mistake of choosing air conditioners (AC) based only on price or brand. But if you ignore important factors, you may end up with higher electricity bills, poor cooling performance, or frequent maintenance issues.

Today, we’ll explain the most important 10 things you should check before buying an AC in 2026 so you can make the right decision to buy the right air conditioners for your home or office.

1. Room Size and AC Capacity

The first thing you need to consider is your room size. Choosing the wrong capacity AC can affect both cooling performance and electricity consumption.

• Small room (up to 120 sq ft): 1 Ton
• Medium room (120–180 sq ft): 1.5 Ton
• Large room (180–300 sq ft): 2 Ton

If you choose a lower capacity air conditioner for a large room, it will not cool properly and a higher capacity AC in a small room will waste electricity.

2. Inverter vs Non-Inverter Technology

This is one of the most important decisions when buying an air conditioner (AC). Inverter AC adjusts its compressor speed based on temperature, which helps save electricity and maintain consistent cooling. Non-inverter AC works with fixed speed, which consumes more power.

In Bangladesh, inverter ACs are becoming more popular because they can reduce electricity bills significantly over time.

3. Energy Efficiency Rating(EER)

Always check the energy efficiency rating(EER) of the AC. A higher rating means better energy savings. An energy-efficient AC may cost more initially, but it will save you money on monthly electricity bills in the long run. This is especially important in Bangladesh where electricity costs are increasing.

4. Cooling Performance and Compressor Type

The compressor is the heart of an air conditioner. A good compressor ensures faster and more stable cooling. There are different types of compressors, but inverter compressors are usually more efficient and durable. They also provide quieter operation, which improves comfort.

5. Build Quality and Durability

Build quality plays a big role in long-term performance so check the features like before buying an AC:

• Copper condenser for better durability: Provides faster cooling and better heat transfer, while lasting longer than aluminum coils.
• Anti-corrosion coating (Gold Fin): Protects the AC from rust, moisture, and dust, which is ideal for humid environments like Bangladesh.
• Strong outdoor unit build: Ensures durability against rain, heat, and dust, helping the AC perform reliably for years.

These features are important in Bangladesh due to humidity and dust, which can affect AC performance over time.

6. Electricity Consumption

Electricity usage is a major concern for most households. A 1 Ton inverter AC typically consumes around 700W to 1200W, a 1.5 Ton uses 900W to 1500W, and a 2 Ton AC can consume around 1500W to 2500W depending on usage and conditions. Choosing an energy-efficient model can help reduce your monthly electricity cost significantly. Always think long-term instead of focusing only on the purchase price.

7. Noise Level

Many people overlook noise level, but it plays an important role in overall comfort, especially during sleep. Air conditioner noise typically ranges from around 19 dB to 70+ dB, while most modern ACs operate quietly between 35–50 dB. For bedrooms, it is recommended to choose a model with 30–40 dB noise level for a calmed and comfortable environment. Inverter and split ACs are generally quieter, ensuring better sleep quality and a more pleasant experience.

8. Smart Features and Controls

Modern air conditioners now come with smart technologies that improve comfort, efficiency, and ease of use. Features like Wi-Fi connectivity and mobile app control allow you to operate your AC from anywhere, adjust temperature, set schedules, and monitor usage directly from your smartphone.

Advanced functions such as voice control (Alexa/Google Assistant), AI-based cooling, and smart sensors can automatically adjust temperature based on your habits or room conditions, helping reduce energy consumption. Additional features like self-diagnosis and self-cleaning also ensure better performance, longer lifespan, and hassle-free maintenance.

9. Installation and After-Sales Service

Proper installation and reliable after-sales support are essential for getting the best performance from your AC. Poor installation can lead to issues like gas leakage, water dripping, and inefficient cooling, so it’s always recommended to use professional technicians.

In Bangladesh, installation costs typically range from ৳1,500 to ৳3,000 for 1–2 Ton ACs, while larger units may cost ৳5,000 to ৳8,000 depending on complexity and materials. 

Regular servicing is also important, usually costing around ৳1,000 to ৳1,500, while gas refilling can range from ৳2,000 to ৳5,000 based on AC size.

Authorized brand centers such as Gree and Walton offer professional installation and maintenance services. Regular servicing (every 3–6 months), warranty support, and expert technicians help maintain performance, reduce repair costs, and ensure long-term reliability.

10. Brand Reliability and Warranty

Choosing a trusted authorized brand ensures better performance, durability, and service support. Some reliable AC brands available in Bangladesh include:

• Gree
• Midea
• Samsung
• LG

These brands offer good build quality, energy efficiency, and proper warranty coverage.

Where Can You Find the Best AC?

In 2026, as demand for air conditioners continues to grow in Bangladesh, checking these 10 important factors, you can avoid common mistakes and choose an AC that fits your needs perfectly.

Instead of focusing only on price, consider performance, energy efficiency, and service support. This will help you enjoy better cooling, lower electricity bills, and long-term reliability. If you are planning to buy an original AC in Bangladesh, you can visit Star Tech. They offer a wide range of authentic air conditioners from trusted brands at competitive prices.

You can purchase from their physical 20+ outlets or order online with nationwide home delivery anywhere in Bangladesh.

For premium products, Star Tech also provides 0% EMI facilities, official warranty, and reliable after-sales service, making your purchase safe and convenient.