Don’t you hate it when you’re out and realise you’ve left the gas on at home? It’s a nightmare when we do it with a gas stove, yet millions of Australians are essentially doing this every day to keep their water piping hot. There’s a more efficient alternative: use a hot water heat pump as a thermal battery.

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Hot water heat pump systems are great for saving energy, but there’s a major problem dogging them like an overly friendly labrador that has been rolling in fish guts.  Most warranties stink!  I can only think of four brands commonly sold in Australia with warranties I consider close to acceptable.

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