Hot water is one of the first things a new homeowner notices and one of the last things a builder wants a callback about. It’s also a decision that gets made late on too many projects, which is how you end up with a unit squeezed into the wrong spot or a lead time that pushes back handover.
With spring bringing a wave of new builds across Ringwood, Dandenong and the wider Melbourne area, now is a good time to lock in your approach. This guide compares the common options, explains what to settle at design stage and outlines how installation should fit into your program.
The main options for new homes
With reticulated gas no longer available to most new homes needing a planning permit in Victoria, electric and heat pump options now dominate new-build specifications. Here’s how they compare in general terms.
Heat pump hot water. These systems extract heat from the surrounding air, much like a reverse-cycle air conditioner, and use it to heat water. They’re typically far more efficient than conventional electric resistance heating, which is why they’re the default choice for all-electric homes. We install a range of heat pump hot water brands, including Daikin, Rinnai, Immergas, Haier and the Reclaim Energy CO2 and Emerald all-in-one systems. They need outdoor space with adequate airflow and produce some operating noise from the compressor and fan.
Solar-ready hot water. Some heat pump systems can be paired with rooftop solar to further reduce running costs, timing hot water heating to daylight hours where the controls allow it. Ask early if a solar-ready configuration suits the project.
Electric storage. A conventional electric tank is simple and lower in upfront cost, but it generally costs more to run than a heat pump. It can make sense in smaller dwellings or where outdoor space is very limited, though it’s worth discussing the running-cost trade-off with buyers.
Gas and LPG hot water. Where gas is still permitted, for example on some projects not subject to the all-electric planning rules, gas hot water may still be an option. Because rules are changing, confirm what applies to each project before you specify.
Choosing the right system: questions to ask
The best system depends on the home and the client. Before recommending anything, work through these questions:
- How many people will live in the home, and how many bathrooms are there?
- Is there suitable outdoor space with clearance around the unit?
- How close is the unit to bedrooms or neighbouring properties, given heat pump operating noise?
- Is rooftop solar planned, and would a solar-ready system suit the setup?
- What is the electrical capacity, and can the switchboard support the chosen system?
- What is the budget for upfront cost versus running cost?
Bringing your HVAC partner and electrician into this conversation at design stage saves rework later.
Location matters more than most people expect
Hot water units are easy to place badly. A few common issues we see:
Noise close to bedrooms. Heat pump units make some noise, so placing one directly under a bedroom window or against a neighbour’s fence line can lead to complaints. Consider where the unit sits relative to living and sleeping areas.
Poor airflow. Heat pumps need clearance to draw in and discharge air. Tight side setbacks, which are common on Ringwood infill blocks, can limit options.
Long pipe runs. The further the unit is from the bathrooms and kitchen, the longer it takes hot water to arrive and the more heat is lost. A central location is usually better.
Clashing with other outdoor plant. Hot water units, ducted system condensers and evaporative coolers all compete for the same limited outdoor space. Plan the whole outdoor equipment layout together rather than fixture by fixture.
Rebates and incentives
The Victorian Energy Upgrades (VEU) program offers rebates and discounts on eligible energy-efficient hot water systems installed by participating businesses. Efficient Pure Plumbing participates in the VEU program, so builders and their clients may be able to access rebates on qualifying heat pump installs. Availability, eligibility and amounts change, so always confirm current details before you quote a price or advertise a discount to a client.
Fitting hot water into your program
A well-run hot water install follows a clear sequence:
- Design stage: decide system type, size and location, and confirm electrical capacity
- Ordering: place the order early, since some units and models have longer lead times
- Preparation: provide a stable base or pad, mounting position and clearances
- Frame stage: run any required pipework and electrical as part of rough-in
- Fit-off: install and connect the unit and wiring
- Commissioning: test the system, check temperatures and controls, and demonstrate it to the client where possible
- Paperwork: provide warranty and manual documents, and confirm any rebate paperwork
If any of these steps slip, the rest of the program can slip with it. Ordering early and confirming site readiness are the two easiest ways to avoid a last-minute scramble.
Ringwood and Dandenong: what we see on the ground
On smaller Ringwood blocks, outdoor space and neighbour proximity often decide the system for you. Compact heat pump models and careful placement are usually the practical answer. On larger Dandenong developments, volume builders often benefit from standardising a small number of hot water packages across a project, which speeds ordering, installation and servicing.
Whichever situation you’re in, an installer who does these installs regularly will spot placement issues and lead-time risks before they hit your program.
Talk to us early
Efficient Pure Plumbing installs and services heat pump hot water systems for builders and homeowners across Ringwood, Dandenong and Melbourne’s east and south-east. If you’re planning a spring build, get us involved at the design stage so your hot water is specified, ordered and installed without drama.
