Single Split, Multi-Split or Ducted: Which Systems Qualify for VEU Discounts?

The government’s heating and cooling guidance covers approved ducted and non-ducted reverse cycle equipment. That does not make every product within those categories eligible. Check the exact model and installation activity in the VEU product register.

Two homes choosing the same layout can still have different proposals. Their existing heaters, room sizes and installation requirements may differ. Ask the assessor to explain both product suitability and eligibility, rather than treating one as proof of the other.

A single split pairs an indoor unit with an outdoor unit. It is an option to discuss when a specific room or open-plan area needs conditioning. Multiple separate splits can be considered for several areas, subject to design and available outdoor locations.

The key conversation is about coverage. Ask where air can travel, how closed doors affect the intended layout and which spaces are outside the brief. Avoid describing a single living-room unit as a whole-home solution unless the designer has actually assessed that outcome.

Check the wall location as well. Curtains, furniture, doors and access for cleaning matter when you will live with the unit every day. Put the proposed position on a photograph so there is no ambiguity on installation day.

A multi-split connects multiple indoor units to one outdoor unit. It can be worth discussing where several rooms need conditioning but outdoor equipment locations are limited.

Ask about the proposed indoor-unit combination, shared outdoor capacity and operating modes. Do not assume every room can demand its individual maximum capacity at the same time, or that a standard residential multi-split can heat one room while cooling another. The specific equipment determines what is possible.

Have the designer explain a realistic evening in your home. If the lounge and three bedrooms are all occupied, how will the proposed system handle that use? That question is more helpful than choosing purely by the number of indoor heads.

Ducted reverse cycle uses ductwork and outlets to distribute conditioned air. The visible finish can be discreet, but the hidden layout deserves careful attention: duct routes, return air, access and zoning all belong in the proposal.

Ask how the design works when only part of the house is occupied. Which zones can operate together, and are there minimum operating requirements? Have those answers explained using your floor plan.

If you are replacing gas ducted heating, do not assume the old ducts can simply remain. Request a clear account of new and retained components. Our gas-heating replacement guide covers the wider project.

There is no universal winner. A tidy equipment layout is useful only if it serves the rooms you need. Ask the assessor to explain why a recommended option is preferable for your property, and what compromises come with it.

Room dimensions, glazing, insulation and local conditions influence design. The Solar Victoria buyer’s guide discusses the factors behind choosing a system.

Prepare a floor plan and note the rooms that feel hardest to heat or cool. Tell the assessor about planned renovations or changes in use. A spare bedroom becoming a home office may change your priorities even though the house still has the same number of bedrooms.

Ask for a design explanation rather than a rule of thumb. It should connect the equipment choice to your spaces and intended use in language you can follow.

Request complete model numbers, capacities, room coverage, controls, installation locations and the full work scope. Compare electrical work, pipe runs or ductwork, removal and finishing work. Ask who confirms the VEU discount and what happens if the equipment changes.

Melba Energy is not a VEU accredited provider. Confirm the responsible provider before proceeding with a discounted installation. Browse our air conditioning options or request an assessment with your floor plan.

Checked on 10 October 2026. Program rules and certificate values can change. Use the current official guidance and your written quote before committing to an upgrade.

• Victorian Government: heating and cooling discounts
• VEU product register
• Solar Victoria: heating and cooling buyer’s guide