Diamond Creek Split-System Install: 7 kW Mitsubishi Electric for a High-Ceiling Living Room
Diamond Creek Split-System Install: 7 kW Mitsubishi Electric
Thinking about heating/cooling upgrades?
Location: Diamond Creek, VIC
Scope: Supply & install split-system air conditioner in a living room with raked ceilings.
The brief
This Diamond Creek home had a beautiful, open living space with high ceilings—great for light, not so great for temperature control. Portable heaters were chewing power and the old wall unit struggled on the hottest days. The owners wanted reliable heating/cooling before summer, without noise or clutter.
What we installed
We fitted a 7 kW Mitsubishi Electric split system sized for the room volume and ceiling height.
Indoor unit positioned high on an internal wall for strong circulation across the room.
Outdoor unit neatly wall-mounted to keep it clear of debris and garden runoff, with good airflow for quieter operation and efficiency.
Dedicated electrical circuit & isolator, plus tidy external conduit to suit the brick façade.
Why this placement works
High ceilings let heat rise; the trick is throw and return. Mounting the indoor unit high helps push conditioned air across the space and draw warm air back down in winter. Outside, raising the condenser keeps coils cleaner, improves airflow, and reduces the chance of corrosion—meaning fewer service headaches.
Commissioning & compliance
We pressure-tested, evacuated and charged the system to spec, then ran performance checks on heating and cooling. Electrical works were completed to AS/NZS 3000, including a labelled isolator and circuit protection. Final step: client walkthrough on modes, timers and quiet operation. (COES supplied on completion.)
The result
Fast warm-up and cool-down in a tricky, high-volume room
Quieter operation thanks to smart placement and a quality inverter unit
Lower running costs compared with old resistance heaters and portable coolers
Future friendly: space left for additional circuits if the household upgrades appliances later
Thinking about heating/cooling upgrades?
If you’ve got a high-ceiling living area in Diamond Creek, Eltham, Greensborough, Research or Hurstbridge, a correctly sized split can transform comfort and bills. We handle measure, supply, electrical and commissioning—one call, neat finish.
Call the Team at Cable & Connect!