Case Study: Transforming Airflow & Comfort in a Two-Storey Home

When an air conditioning system fails, it presents an opportunity—not just to replace equipment, but to correct the shortcomings of the original installation.

In this project, the homeowner had purchased a property with an existing ducted reverse cycle system installed during construction. As is often the case, they inherited the design decisions made by the original owner and builder.

Having previously worked with Needhamair, the client engaged our team to carry out ongoing preventative maintenance. Over time, a consistent issue became clear: poor airflow to the ground floor. The system struggled to reach the desired temperature, particularly in winter, where the heating mode proved ineffective. As a result, the homeowner relied on a separate gas heater to maintain comfort.

The Challenge

  • Inadequate airflow to the ground floor
  • Inability to reach set temperatures
  • Inefficient original ductwork design
  • Underperforming linear grille installation

Our Approach

When the system eventually failed, the homeowner chose a comprehensive upgrade rather than a simple unit replacement.

Our process began with a detailed site inspection to assess:

  • Accessible areas within the ceiling space
  • Components that could be reused
  • Critical elements requiring redesign or replacement

To achieve the best outcome, the client approved minor ceiling modifications, allowing us to reposition the indoor unit for improved duct connections and system efficiency.

A key issue identified was the existing linear grille, which had insufficient duct and sheet metal connections—severely limiting airflow. This was replaced with two 4-way multi-directional outlets (MDOs), significantly improving air distribution across the space.

We also implemented zoning reconfigurations to better align airflow with how the home is used.

Installation

A dedicated team of five technicians completed the installation in a single day, following a carefully designed plan developed by our sales consultant. Ceiling repairs were commenced the following day, ensuring a seamless finish.

The Result

The transformation has been substantial.

The homeowner immediately noticed a dramatic improvement in airflow to the ground floor. Areas that previously struggled to reach temperature now heat and cool efficiently—often requiring adjustments to reduce output.

With the addition of a new Wi-Fi-enabled zone controller, the system is now:

  • Easy to manage
  • Responsive to changing comfort needs
  • More energy-efficient

Considering an Upgrade?

If your air conditioning system is ageing or not performing the way your household needs, it may be time to look beyond a simple replacement.

A refined airflow design—combined with modern equipment—can dramatically improve comfort, efficiency, and usability.

Visit us at Homebase Subiaco to speak with our team about how we can optimise your home’s air conditioning system for year-round comfort.