Installing a New vs. 2nd Hand Aircon in Singapore: Pros, Cons & Costs

When replacing an old air conditioner or fitting out a newly bought HDB flat or rental unit in Singapore, you'll need to choose between purchasing a brand-new aircon system or a reconditioned 2nd-hand unit.

Here is an honest breakdown of costs, efficiency, and reliability to help you decide.

Buying Brand-New Aircon Systems

Pros:

• Highest Energy Efficiency: Modern 5-tick NEA-rated inverter systems drastically lower long-term power bills.
• Manufacturer Warranty: Comes with 1-year general warranty and 5-year compressor coverage from brands like Daikin or Mitsubishi.
• Latest Features: Smart Wi-Fi connectivity, air purification filters, and ultra-quiet fan motors.

Cons:

• Higher upfront purchase cost (e.g., $2,500 – $3,800 for System 3/4).

Buying Reconditioned 2nd Hand Aircon Systems

Pros:

• Significant Upfront Savings: Costs roughly 40% to 60% less than a brand-new system.
• Ideal for Short-Term Needs: Perfect for rental properties or flats planned for resale within 1 to 3 years.
• Fully Serviced Units: Professional installers chemically overhaul and test 2nd-hand units before installation.

Cons:

• Shorter warranty period (typically 3 to 6 months installer warranty).
• Slightly higher power consumption compared to latest 5-tick models.

Essential Installation Quality Checklist

Regardless of choosing new or 2nd-hand, ensure your installer uses high-grade materials:

• G23 Heavy-Duty Copper Pipes (0.71mm thickness) to prevent pressure leaks
• 1/2 Inch Thick Armaflex Insulation to eliminate ceiling pipe sweating
• Proper Vacuum Line Evacuation prior to releasing gas