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Electric hot water systems defended

By johnboy 18 June 2009 22

Andrew Barr had his wrist slapped yesterday for not fronting estimates committees when asked to (the ABC has details).

But he’s certainly revelling in seeing off Green plans to get electric hot water systems banned in the ACT:

    The main problems with the Greens Party’s original ill-conceived legislation include:

    · A lack of realisation that electric water heaters are highly efficient and that it is the source of power rather than its use in this case which generates greenhouse emissions. The Greens Party plan would see more gas fired heaters used which are less energy and less water efficient

    · A lack of consultation. Its clear there has been little or no consultation with industry. With the Greens Party pushing for this ban to take effect in 2009, there would not be time or the opportunity for people who may have pre-ordered electric hot water heaters for houses yet to be constructed to make other arrangements or seek refunds. Significant consultation with industry would be needed, and a longer lead-in time may be required.

    · A lack of ability to drive efficiency of the water heater system as a whole. The Greens Party scheme refers to ‘hot water systems’ however it largely failed to recognise that the whole system needs to be considered including pipes and outlets in addition to the water heater itself.

Andrew has un-kindly offered to send the Greens’ proposal off to a committee investigation where they can examine the triple bottom line impacts of their proposal and reveal who they consulted with before introducing their legislation.

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Electric hot water systems defended
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Peewee Slasher 12:34 pm 19 Jun 09

Thee life of a hot water unit is indeterminable. Average life could be 15 years, could be more, could be less. Upon replacement, the plumber has to abide by plumbing regulations and fit the TMV or tempering valve. Old houses (more than 10 years) won’t have seperate plumbing pipe systems to feed thr bathroom and kitchen and laundry, so the tempered hot water will be at the lower temperature. Storage hot water above 60 degrees, delivery to bathroom = approx 45 degrees.

Heat exchanger in an instantaneous or continuous flow unit is less than a litre, so don’t panic over that amount. Hot water units are placed near to the main source of drawdown, the laundry. Teh trade off is the kitchen is a long way from the laundry. Bigger houses (there are plenty) require longer piping = more wastage. Also, they can have 2 units.

I have a storage system, set to the lowest temperature I can handle. Gas units have adjustable temperature controls, have a look. In Summer, I turn it down further. Incoming water is warmer. Length of shower = variable, depending on many things.

Storage units have a relief valve that may drip some water. Use a bucket to capture the water adn use it in garden.

Hells_Bells74 11:51 am 19 Jun 09

Oh I do consider myself lucky to have hot water running at all and thank you for that good news. 🙂

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