Air Conditioning Systems for Landed Homes: Multi-Split vs VRV vs Ducted

When rebuilding a landed property in Singapore, air conditioning isn’t just a comfort feature — it’s a major M&E infrastructure decision.

“Should I go with Multi-Split or VRV?”

“Is ducted worth the cost?”

“How many outdoor units will I need?”

This guide breaks down the three main aircon types used in landed homes and helps you choose the best fit based on layout, cost, space, and future flexibility.

Air Conditioning Systems in Singapore: A Comprehensive Guide

Quick Comparison Table

System Type	Cooling Style	Outdoor Units	Indoor Types	Best For
Multi-Split	Fixed Room Units	Many (2–5)	Wall-mounted	Simple retrofits, small homes
VRV / VRF	Central Control	1 (large)	Wall, ceiling, ducted	Multi-level homes, zoning
Ducted	Concealed Cooling	1–2 (large)	Ceiling duct grille	Sleek finish, premium homes

1. Multi-Split Systems (Conventional Choice)

A Multi-Split system connects one outdoor condenser to multiple indoor fan coil units.

📍 Common brands: Mitsubishi Electric, Daikin, Panasonic

📦 Typically used in: Small to medium homes (2–5 rooms)

✅ Pros:

• Lower upfront cost

• Easy to source and service

• Can use standard wall-mount units

  
  

⚠️ Cons:

• Multiple outdoor units needed for bigger houses

• Takes up wall space indoors

• Not visually seamless

• Can be noisy or messy on facade if not coordinated early

  
  

💡 Best for:

Basic rebuilds with fewer aesthetic constraints or budget-conscious setups.

2. VRV / VRF Systems (Centralised Smart Cooling)

VRV (Variable Refrigerant Volume) or VRF (Variable Refrigerant Flow) systems are modular, energy-efficient, and smart.

They allow zoned cooling — each room or zone can be set to a different temperature from one large outdoor unit.

📍 Common brands: Daikin, Mitsubishi

🔧 Controlled via central or app-based system

✅ Pros:

• Fewer outdoor units (just one!)

• Zoned control = energy savings

• Multiple indoor types: wall, ceiling cassette, ducted

• Scalable for large houses

  
  

⚠️ Cons:

• Higher initial cost

• Requires skilled design and installation

• Coordination with carpentry and ceiling depths critical

• Replacement parts = proprietary

  
  

💡 Best for:

Large or multi-storey homes, especially with >4 rooms or when outdoor condenser space is limited.

3. Ducted Air Conditioning Systems (Hidden, Hotel-Style Look)

Ducted systems cool rooms via concealed air ducts and linear vents. The indoor unit is hidden in the ceiling or false wall.

📍 Often used in: Premium landed homes, bungalows, showhouses

✅ Pros:

• Sleek, minimalist look — no visible units

• Even air distribution

• Perfect for large open spaces

• Integrates well with smart thermostats and automation

  
  

⚠️ Cons:

• Most expensive option

• Needs more ceiling space for ductwork

• Requires early planning for insulation, condensate piping, access panels

• Zoned control is more complex without VRV add-on

  
  

💡 Best for:

Modern designs, clean interiors, homes with high ceilings and centralised control goals.

4. Key Factors When Choosing Your System

Factor	What to Consider
Ceiling Height	Ducted needs >300mm space for ducts
Number of Storeys	VRV handles multiple floors with 1 outdoor unit
Power Supply	Ducted and VRV may need 3-phase supply
Smart Integration	VRV and ducted are more compatible with automation
Maintenance Access	Plan for ceiling access panels
Aesthetic Preference	Wall units (visible) vs ducts (hidden)
Outdoor Space Limit	Use VRV to minimise condenser count

5. Installation Tips from an M&E Specialist

• Design first, install later: Aircon layout must match ceiling and DB design.

• Allow for maintenance: Don’t box up indoor units without service access.

• Drainage slope matters: Especially on attic or roof levels — prevent condensate leaks.

• Pre-run trunking early: Avoid hacking post-plaster.

• Check load calculations: Especially for VRV — underpowered systems are inefficient.

  
  

✅ Hitomo’s Approach to Air Conditioning Planning

At Hitomo Construction, we:

• Review your room zoning, ceiling plan, and elevation.

• Coordinate with ID to conceal ducts and piping.

• Advise on correct outdoor condenser sizing and facade aesthetics.

• Work with BCA & PUB requirements for M&E submission.

• Offer VRV-ready wiring + DB layout if you plan future upgrades.

  
  

Whether you choose multi-split, VRV, or ducted, we ensure the system fits your house — technically and visually.

📞 Don’t Sweat the Wrong Choice — Plan Your Cooling Right

Choosing the wrong aircon system can cost you in noise, repairs, or ceiling hacks later. Let’s plan cooling the smart way — before the slab is cast.

Contact Us Today!