The household
Answer four questions. Everything stays on this device.
People living in the home
Showers that can run at the same time
Usually the number of bathrooms in use in the morning rush.
How much hot water they use
Where the home is
Quoting the hot water system?Price the unit, fittings and labour from your supplier’s list, get the quote signed on site and invoice in one tap.
Try Wattlebase free for 30 days- A guide only. Sizes are typical starting points for each type of system, rounded up to common tank sizes and gas unit ratings. Check the manufacturer’s sizing chart for the model, and the household’s habits.
- Storage systems must keep water at 60 °C or hotter, and hot water to bathrooms in new installations is limited to 50 °C (AS/NZS 3500.4), so a tempering valve is usually needed.
- Check the gas supply, meter and pipe size for gas units, the electrical circuit for electric and heat pump units, and local rules and rebates before quoting.