Guides
Everything published here, grouped by what it answers. Each one carries its sources and the date the figures were last checked.
Last checked
Prices
- How to read a hot water quote before you sign What a complete quote shows, why a unit price is not an installed price, and the five lines worth asking for.
- Replacing gas with a heat pump Why the switch earns a smaller rebate than replacing electric, and the electrical work nobody quotes for.
- Hot water system replacement cost Installed prices by system type in 2026, before rebates, and what pushes a quote up or down.
Rebates
- A heat pump in Victoria, once both rebates come off A worked example of a $4,000 quote with the Victorian Energy Upgrades discount and the Solar Victoria rebate applied in order.
- The same heat pump, four states, four prices What each state scheme takes off a heat pump in 2026, which have closed, and why the state line is worth hundreds.
- Hot water rebates by state What each state takes off the price of a new system, and which programs have closed.
- Victoria's hot water rebates The Solar Victoria rebate and the Victorian Energy Upgrades discount, who qualifies, and how they stack.
- The NSW heat pump hot water discount How much the Energy Savings Scheme takes off, and why replacing gas gets you less than replacing electric.
- South Australian hot water offers Why REPS has no fixed amount, and what to ask energy retailers instead.
- Queensland hot water rebates The state appliance rebate has closed. What that means, and what is still available.
Rules
- No hot water in a rental: the first 48 hours A broken system is an urgent repair in Victoria and NSW. What to do, what you can spend, and when you get it back.
- Tempering valves and the 50 °C rule Why water is stored at 60 °C but delivered to bathrooms at no more than 50 °C, and what the valve does.
- Landlord hot water obligations The urgent repair rules in Victoria and NSW, side by side, with spending caps and repayment times.