Business
How to save money and electricity when renovating — CSIRO’s top tips for your home – ABC News
The average existing house in Australia only rates about two out of 10 stars for energy efficiency, but with a smart retrofit the rating can be tripled, slashing…

What do you do with a 50-year-old red brick home in the tropics of Far North Queensland that is an energy guzzler burdened with a two-star energy efficiency rating?
Key points:
- The highest rating for energy efficiency is 10 in the Nationwide House Energy Rating Scheme (NatHERS)
- The average Australian house is rated 2.2 stars and rises to 4.9 stars after renovating
- Renovating wisely could cut heating and cooling costs by up to 50 per cent
Many Australians have been jumping at the chance to renovate…
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